NZ627734B2 - Multistage method for producing a hydrogen-containing gaseous fuel and thermal gas-generator plant - Google Patents

Abstract

Disclosed is a method for producing a hydrogen-containing gaseous fuel in a turbogenerator plant. The multi-stage method for producing a hydrogen-containing gaseous fuel (G.G. Arakelyan method) is implemented in a turbogenerator plant which performs at least three stages of separation of process flows and comprises separation of the supply of water and hydrocarbon component, wherein, in the first stage, water is fed for heating and steam generation, in the second stage, the hydrocarbon component is fed and is then mixed with the steam by an injection method, and the mixture is heated and passed on to the third and subsequent steps of heating to produce fuel, and then the fuel produced is passed on from the latter step to the inlet of a firing system for forming a firing flare which heats a process cylinder for the multi-step formation of fuel, and a working flare, and some of the fuel is directed for external use. ws and comprises separation of the supply of water and hydrocarbon component, wherein, in the first stage, water is fed for heating and steam generation, in the second stage, the hydrocarbon component is fed and is then mixed with the steam by an injection method, and the mixture is heated and passed on to the third and subsequent steps of heating to produce fuel, and then the fuel produced is passed on from the latter step to the inlet of a firing system for forming a firing flare which heats a process cylinder for the multi-step formation of fuel, and a working flare, and some of the fuel is directed for external use.

Description

MULTISTAGE METHOD FOR PRODUCING HYDROGEN-CONTAINING GASEOUS FUEL AND THERMAL GAS-GENERATOR PLANT Technical Field The invention relates to energy-saving technologies, mainly to methods and units for converting water (H O) in a hydrogen-containing gas in combination with a catalyst medium from the line of CnH2n+2 (diesel fuel, residual oil) in a continuously heated medium at a burning temperature above 500°C. Most often, such methods are related to systems, in which gaseous fuel production and its implementation by burning are combined into a single cycle, but may be used for the accumulation of hydrogen-containing gaseous fuel.

Background There is a known method of hydrogen-containing gas generating (SU Pat. № 1144977, 1985), where components are burned in the high temperature mode to obtain hydrogen-containing gas.

The disadvantage of the method is the high power consumption.

There is a known method of gas production from hydrocarbon raw material (SU Pat. № 939380, 1982), where water vapor, superheated up to 430 degrees, is mixed with hydrocarbons with subsequent heating of the steam and gas mixture.

The disadvantage of the method consists is an additional energy consumption to produce superheated steam and subsequent heating.

There is a known application of water steam in its various phase states, all of which are characterized by different equilibrium states (Soviet encyclopedic dictionary. M.: 1985, - p 962, Ref. "Steam").

There is also known "Method of producing hydrogen-containing gas in the turbo-generator setup“ (RU Pat. № 2269486, 2006), adopted by the applicant as the closest similar method. A known method and device for its implementation have the same purpose as the claimed technical solution, and that method is characterized by a sequence of operations by stages, combined in a single closed cycle, and the device, corresponding to these stages.

In the part of the method of the known technical solution a multistage method of producing hydrogen-containing gaseous fuel with closed cycle is implemented, including the launch of the process in the forced warm-up mode and implementation of a self-heating process in the normal self-heating mode, which includes mixing the hydrocarbon component and water, their supply by pumping under pressure, heating, fuel return and ignition.

In the known technical solution, the initial mixing in the liquid phase of water and the hydrocarbon component, at normal (20 degrees) temperature of components, does not ensure the stability of dispersed composition of the mixture, directed further for heating to produce fuel.

After cessation of mixing (i.e., from the moment of supplying the mixture to heat), the reverse process begins – mixture lamination begins due to different densities of water and hydrocarbon component. This leads to the heterogeneous mixture on the dispersed composition. During the subsequent heating of the mixture, heterogeneity is also observed based on the temperature.

These heterogeneities are maintained in the final product, i.e. the fuel mixture, directed to the torch ignition, causing the torch to burn unstably, on one hand due to formation of local sources (by content) in the mixture, where the mixture is non-flammable, which causes a disruption in ignition and extinction of the torch (which is typical for heavy hydrocarbon components), and on other hand, due to formation of local sources (by content) of rapid burning in the mixture, which lead to unauthorized flashes of flame in the torch, which is typical for light hydrocarbon components.

As for the known device, it includes relevant elements of the method implementation, inherent also to the claimed technical solution, thermal gas generator unit, designed as a single device that has a complex multi-section housing. It includes a burner system, firing chamber, device for mixing the components, ignition pulse device, pipes, and start-up system, which includes a start-up burner with a supply of combustible fuel.

The device has disadvantages, inherent to the implemented method, including disruptions in the process of fuel production due to the heterogeneity of the mixture.

Summary of the Invention In a first aspect, the invention provides a method of producing a gaseous fuel, the method comprising the steps of: providing a cylinder divided into a plurality of isolated chambers and external and internal heat sources configured to heat the cylinder; in a startup mode: introducing water into a first of the plurality of isolated chambers; igniting the external heat source; heating the first isolated chamber with the external heat source to form a water stream; introducing a pressurised hydrocarbon component into a second of the plurality of isolated chambers; adding the water stream into the second chamber; mixing, in the second chamber, the introduced hydrocarbon component with the added water stream to form a mixture; directing a part of the mixture into an ignition zone of the internal heat source; igniting the internal heat source; in a normal mode heating, using the internal heat source, the mixture in the second isolated chamber, in an initial step, to an initial temperature of 1000°C-1100°C and, in a subsequent step, to a temperature in the range of 1300°C-2000°C, for forming gaseous fuel including hydrogen; directing a part of the gaseous fuel into the ignition zone for maintaining the internal heat source burning; and storing the gaseous fuel and providing the gaseous fuel for external consumption.

In an embodiment the normal mode of the method is carried out in the following steps wherein a first step includes introducing water by pumping under a pressure of 0.3-0.5 MPa and heating the water steam formation with a temperature of 500°C-550°C, and a second step includes introducing the hydrocarbon component into a mixer by pumping under pressure of 0.3-0.5 MPa, mixing this hydrocarbon component with water steam in the mixer by injection under pressure of 0.06-0.25 MPa, at a ratio of water to hydrocarbon component from 10.5:1 to 8:1, werein the second step is followed by the step of heating the mixture.

In an embodiment, the normal mode of self-heating ignition is carried out by an ignition pulse unit with an external source--sparking generator, running with a frequency of 1-2 Hz.

In an embodiment, the process of formation and maintenance of the internal heat source burning is carried out with a turbo charging unit.

In an embodiment, in the start-up mode, the step of introducing water is carried out by pumping in an amount of 40-50% of maximum amount of a normal working volume of the first chamber under pressure 0.3-0.5 MPa, and heating is carried out until formation of water steam at a temperature 450°C-500°C, said heating being carried out by the external source of heat.

In an embodiment, in the start-up mode, the external source comprises an ignition spark pulse device with an independent sparking source, such that the device operates with a frequency of 40-50 Hz.

In another aspect, the invention comprises a thermal gas plant for hydrogen-containing gaseous fuel production with closed cycle comprising corpus, a burner system, firing chamber, unit for components mixing, pulse ignition unit, pipes and start-up system, including independent induction heat source, start-up burner with a supply of combustible fuel wherein the corpus comprises two cylindrical tubes, an inner tube positioned in an outer tube, said tubes being arranged in a concentric configuration with a gap therebetween, the gap being divided into three reaction chambers, each chamber corresponding to a stage of a process of making a fuel mixture, such that the gap includes: a first chamber with an independent induction source of heat, a second chamber for mixing steam and hydrocarbon containing gas to form a mixture and heating the steam and gas mixture, a third chamber for carrying out an additional heating stage for the fuel mixture producing, wherein an internal cavity defined by the inner tube forms the firing chamber, the plant further comprising: a mixing unit for mixing the steam and the gas, the unit comprising an injector with separate inlets for water, in the form of steam, and the gas, and separate discharge containers for said water and gas; wherein the discharge container for water is fluidly coupled to an inlet of the first chamber and wherein an outlet of the first chamber is fluidly coupled to a first inlet of the mixing unit, a second inlet of the mixing unit is fluidly coupled to the discharge container for the gas, an outlet of the mixer unit is fluidly coupled to the second chamber and the second chamber is fluidly coupled to the third chamber, the third chamber being adapted for receiving the heated mixture from the second chamber.

In an embodiment, a ratio of radii of tubes forming the corpus, is: 0.3<(R1/r2)>0.1; wherein R1--is an outer diameter of the inwardly located tube, r2--is an inner diameter of outer tube.

In an embodiment, a turbo charging unit is installed on the inlet of the burner system.

In an embodiment, a constant overpressure of 0.3-0.5 MPa is supported in the discharge containers.

Brief description of drawings Fig.1 shows a block diagram of the method algorithm: a) generalized block diagram of the algorithm; b) detailed block diagram with basic elements; Fig. 2 shows the drawing of a three-step thermal gas-generator unit; Fig. 3 shows I-I profile from Fig. 2; Fig. 4 shows II-II profile from Fig. 2; Fig. 5 shows a drawing of the injection-type mixer; Fig. 6 shows a thermal temperature mode within the process cylinder, where: 1 - discharge water container; 2 - discharge container for hydrocarbon component S H 2; 3 - operating burner; 4 - startup burner; 5 - external n 2p+ independent source-generator with pulsed spark igniter; 6 - turbocharger unit; 7 - induction (contact) heater of the turbo generator startup; 8 – injection-type mixer; 9 - fire chamber; 10 - first stage of the process cylinder; 11 - second stage of the process cylinder; 12 - third stage of the process cylinder; 13 - zone of ignition; inflammation and fire torch formation; 14 - zone of process burning of the firing torch; 15 - unit for forming the operating torch, 16 - operating torch zone, 17 - process pipe to water supply by pumping it from the discharge water container (1) into the first stage (10) of the process cylinder; 18 - process pipe to supply hydrocarbon component S H 2 by pumping from the discharge hydrocarbon n 2p+ container (2) into the injection-type mixer (8); 19 - process pipe to supply steam from the first stage (10) of the process cylinder into the injection-type mixer (8); 20 – process pipe to supply steam and hydrocarbon mixture from the mixer (8) into the second stage (11) of the process cylinder; 21 - process pipe to supply steam and hydrocarbon mixture from the second stage (11) into the third stage (12) of the process cylinder; 22 - process pipe to supply steam and hydrocarbon mixture from the second stage (11) into the start-up burner (4) (return of fuel in the forced heating mode); 23 - process pipe to supply fuel from the third stage (12) of the process cylinder into the operating burner (3) (return of the fuel in the normal self- heating mode ); 24 – pipe to deliver fuel to an external fuel consumer; 25 - control valve; 26 - the place to load water into the discharge container (1); 27 - the place to load hydrocarbon fuel into the discharge container (2); 28 - devices to control the head and the pressure in the process pipes; 29 – water steam generation; 30 – fire torch formation; 31 - mixing and heating of the water steam and hydrocarbon mixture; 32 - heating of the steam and hydrocarbon mixture to produce fuel; 33 – inner cylinder of the thermal gas generator; 34 - outer cylinder of the thermal gas generator: a) - supply of steam and hydrocarbon mixture from the second stage (11) of the process cylinder to run the process; b) - supply of the combustible mixture from an external source to run the process, c - supply of hydrocarbon component to run the process; 35 - process cylinder heating.

In the method, of at least some embodiment of the present invention, fuel production is implemented as a multi-stage process with separate supply of the hydrocarbon component and water into the process cylinder, heated by the firing torch. The cylinder is divided into isolated sections, number of which corresponds to the number of fuel production stages. At the first stage, water is supplied and heated until it becomes water steam, at subsequent stages, a hydrocarbon component is supplied and mixed with water steam, then water steam and hydrocarbon mixture is additionally heated up to a temperature to form hydrogen- containing gaseous fuel, flow of which is directed to return into ignition zone to ensure firing torch burning.

In the normal self-heating mode, processes of hydrogen-containing gaseous fuel production can be performed by heating, for example, in three stages, corresponding to the process of water steam forming in the first stage, where water is pumped under 0.3-0.5 MPa pressure and heated up to form water steam at 500-550 ºC, corresponding to the mixing process and further heating at the second stage, where the hydrocarbon component is pumped under 0.3-0.5 MPa pressure and mixed with water by pumped water steam under 0.06-0.25 MPa pressure, at a ratio of water to the hydrocarbon component from 10.5:1 to 8:1, and the mixture is heated up to a 1000-1100 ºC. At third and subsequent stages, corresponding to the process of producing of hydrogen-containing gaseous fuel, the mixture is heated up to 1300-2000 ºC.

In the normal self-heating mode, an ignition can be performed by a firing torch and/or ignition pulse device with an external source, i.e. spark generator, operating at 1-2 Hz frequency, the fuel flow to return for ignition and firing torch formation can be partially directed to storage and/or external consumption, and process of formation and maintenance of the firing torch can be performed by a turbocharger to improve the firing quality and efficiency.

When starting the process in the forced heating mode, it is reasonable to carry out preliminary water injection in the amount of 40-50% of the largest allowable normal operating volume under 0.3-0.5 MPa pressure, change of the water phase state - to carry out by heating up to water steam at 450-500 ºC , from an independent source of heat, for example, an inductive heater, and ignition of steam and hydrocarbon mixture or the other fuel component - to carry out with an independent source by ignition spark pulse device with an independent source of sparking, operating at 40 - 50 Hz frequency.

Thermal gas generator unit, designed as a single device, which has a complex multi-section housing, in contrast to the known device. Its housing, designed as two cylindrical tubes with a gap, embedded in one another, forming the process cylinder, divided into isolated sections, with section numbers, corresponding to the number of fuel mixture production stage, an inner tube space forms the firing chamber, the mixing device is designed as an injector with separate inlets for water as a water steam and hydrocarbon components, the outlet of the process cylinder’s last section is connected by a pipe to the inlet of the firing chamber, where the burner system is installed. This system includes an ignition device with spark-ignition pulse source and an operating burner, start-up burner, with an installed operating torch formation element on the firing chamber outlet, as a flow restrictor. The unit is equipped with fuel tanks, designed as separate sealed discharge containers for water and hydrocarbon components.

The device can be designed as a three section process cylinder, where the first section is for the vaporization stage, designed with an independent induction heat source, the second section is for the component mixing stage, and steam and gas mixture heating, the third section provides an additional heating stage for the fuel mixture production. Furthermore, the discharge container for water in the unit is connected by a pipe with an inlet of the first section of the process cylinder, an outlet of which is connected by a pipe to the first inlet of the injector, the injector’s second inlet is connected by a pipe to the discharge container of hydrocarbon component, and the injector outlet is connected by a pipe to the process cylinder’s second section, which is connected by a pipe with the third section of the process cylinder.

The ratio of the tubes radii, forming the process cylinder to produce the fuel mixture is: 0.3 > (R1/r2) > 0.1; where R1 - outer diameter of the inner tube, r2 - inner diameter of the outer tube, and a turbocharger can be installed on the inlet of the turbine burner system, and it is reasonable to maintain constant 0.3-0.5 MPa overpressure in discharge containers.

Description of the Invention Implementation The method and the unit implement the dependence of H O + S H = H 2 n 2n+2 2 + CO2 in a high-temperature multi-stage mode. The thermal capacity of carbon is best utilized using water gas.

To vaporize water gas of carbon, it is requires 8% of its own resources, while the water gas consists mainly of CO (40-60%) and H2 (30-50%).

Water gas formation is a complex, two-stage process: at 500ºC, there is a complete decomposition yielding hydrogen and carbon dioxide (C+2H O = 2H + CO2); at 1,000-1,200 ºC – a decomposition yielding hydrogen and carbon monoxide (CO2 + C = 2CO). If the water is taken in a steam state, the decomposition of water steam (C + H O = CO + H ) is accompanied by heat loss, and therefore leads to cooling. So, to compensate these heat losses, the heating temperature of the first stage must be higher than the final stage temperature, i.e. it must be not less than 1,300ºC.

The presence of the turbo pump (air, oxygen or other additional oxidant) allows to obtain so-called generator gas with 1935º C mixture burning temperature, while there are virtually no environmentally harmful components emitted.

The method is shown in the block diagram of the implementation algorithm (Figure 1). The method includes (Fig.1a) the fire torch formation and ensuring process burning (30) for heating components and mixture in the process cylinder (35).

To ensure the process implementation and claimed technical problem decision, there is a separation of process flows with separate supply (17-18) of components (water (1) and the hydrocarbon component (2)). Water is supplied for heating and vaporization (29) for subsequent steam supply (19) to mix with the hydrocarbon component and subsequent heating of the steam and hydrocarbon mixture (31), which, already at this stage, may be a flammable mixture.

This mixture is used during the start-up of the system (22). Then, the mixture is sent to the next stages of processing (32), for additional warm-up (20- 21). The resulting fuel is sent to the system inlet for ignition (23), as well as it used also to create an operating torch at the unit’s outlet.

Heating of components and mixture (35) in normal mode is performed by using a process cylinder with several sections, corresponding to the stages number for the implementation of the method.

Components (water and hydrocarbon component) are loaded into sealed containers (1, 2) under the constant pressure of 0.3-0.5 MPa to ensure their uninterrupted supply to the system by pumping through control valves (25), (Figure 1a and Figure 2). Loading can be carried out periodically, as fast as components are consumed, as well as continuously.

When taking a three-stage process as the basis, at the first stage in the normal self-heating mode, water is heated up to superheated steam at 500-550 ºC, and in the start-up mode with forced heating - up to 450-500 ºC.

The resulting superheated steam is directed to mix with hydrocarbon components. Mixing is performed by injection (8) of steam (Fig. 5). Then, the steam and hydrocarbon mixture is additionally heated in the second section of the process cylinder (11) and in the third section, (12) the mixture is heated up to a temperature of forming gaseous fuel, which in the normal self-heating mode is directed to return (23) for igniting and flame torch formation.

In the start-up mode with forced heating (7), the steam and hydrocarbon mixture is directed (22) for ignition from the second section (11).

The unit includes appropriate elements of the method implementation. It is made as a single device, which has a complex multi-section housing. It consists of the burner system (30), the firing chamber (9), injection-type unit for mixing components (8), the pulse ignition unit (5), pipes and the start-up system, including the start-up burner (4) with a supply of combustible fuel (a, b, or c).

The housing is designed as two cylindrical tubes with a gap, embedded in one another (33, 34), forming the process cylinder.

The process cylinder is heated by the firing torch. It is divided into hermetically isolated sections (10, 11, and 12). The section number corresponds to the stages number of the fuel mixture production process. The first section (10) corresponds to stage of vaporization. This section is equipped with an independent induction heat source (7) for implementing the start-up process. The second section, corresponding to stage of components mixing and heating of a water steam and gas mixture, includes section 11 of the process cylinder, injection-type mixer (8), and the third section (12), which serves for final warming- up of the mixture and fuel production. The inner tube cavity (9) with an inner diameter r1 forms the firing chamber of the firing torch formation (13 and 14) for the process cylinder heating. The mixer (8) of the second stage is designed as an injector with separate inlets (19) for water, in the steam form, and hydrocarbon component (18). The unit is equipped with fuel tanks, designed as separate, sealed discharge containers for water (1) and the hydrocarbon component (2).

The discharge water container (1) is connected by pipe (17) to the inlet of the first section of the process cylinder of the vaporization chamber (10). The outlet of the vaporization chamber is connected by a pipe to the injector’s first inlet, the second inlet of which is connected to the hydrocarbon component discharge container.

The injector outlet is connected by a pipe to the camera (11) for heating a steam and gas mixture. The camera (11) for heating a steam and gas mixture is connected by pipe (21) with an additional heating chamber (12) to form a fuel mixture. The outlet of this chamber is connected by pipe (23) to the inlet of the firing chamber (9), where the turbine burner system is installed. This system has an ignition device with spark-ignition pulse source (5), operating burner (3), and the start-up burner (4). The working torch formation element (16) is installed on the firing chamber outlet, as a flow restrictor (15).

The ratio of radii of tubes, forming the process cylinder for fuel mixture production is: 0.3 > (R1/r2) > 0.1; where R1 - outer diameter of the inner tube, r2 - inner diameter of the outer tube, a turbocharger unit (6) is installed at the turbine burner system inlet , and constant overpressure of 0.3-0.5 MPa is maintained in discharge containers (1 and The graph in Fig. 6 shows a dependence of temperature in the process cylinder on its sections.

Industrial applications The table below shows the comparative characteristics of known technical solutions and proposed method, which confirms that an implementation of the method solves the claimed technical problem. It increases the stability of process of hydrogen-containing gaseous fuel production (a significant reduction of failures), reduction of power consumption and hydrocarbon component consumption (increasing the water/diesel fuel ratio).

Table Example of an actual implementation of the method and technical characteristics of thermal gas generator units, implementing the G. G. Arakelyan method "Grantstroy" type unit Unit of "Grantstroy" type unit Technical VTTGU-700, 2011 series measure VTPGU-1, 2009 series characteristic (claimed solution ment (prototype implementation) implementation) liters per Water (H2O) consumption 20-25 20-25 hour Diesel fuel consumption liters per 3.0-3.1 2.4-2.5 in normal mode hour (6.5:1) – (8.0:1) (8.0:1) - (10.4:1) Water/diesel fuel Average (7.25:1) Average (9.5:1) ratio (87.9:12.1)% (90.5:9.5)% Unit’s outer mm 203 203 diameter Thermal power Gcal 1.0 1.0 Average frequency of the Flame flame failure within the failure per 0.1 0.01 operating time of 1,000 hour hours

Claims (10)

1. A method of producing a gaseous fuel, the method comprising the steps of: providing a cylinder divided into a plurality of isolated chambers and external and internal heat sources configured to heat the cylinder; in a startup mode introducing water into a first of the plurality of isolated chambers; igniting the external heat source; heating the first isolated chamber with the external heat source to form water steam; introducing a pressurised hydrocarbon component into a second of the plurality of isolated chambers; adding the water stream into the second chamber; mixing, in the second chamber, the introduced hydrocarbon component with the added water stream to form a mixture; directing a part of the mixture into an ignition zone of the internal heat source; igniting the internal heat source; in a normal mode heating, using the internal heat source, the mixture in the second isolated chamber, in an initial step, to an initial temperature of 1000°C-1100°C and, in a subsequent step, to a temperature in the range of 1300°C-2000°C, for forming gaseous fuel including hydrogen; directing a part of the gaseous fuel into the ignition zone for maintaining the internal heat source burning; and storing the gaseous fuel and providing the gaseous fuel for external consumption.

2. A method in accordance with claim 1 wherein the normal mode of the method is carried out in the following steps wherein a first step includes introducing water by pumping under a pressure of 0.3-0.5 MPa and heating the water steam formation at a temperature of 500°C-550°C, a second step includes introducing the hydrocarbon component into a mixer by pumping under pressure of 0.3-0.5 MPa, mixing the introduced hydrocarbon component with water steam in the mixer by injection under pressure of 0.06-0.25 MPa, at a ratio of water to hydrocarbon component from 10.5:1 to 8:1, and wherein the second step is followed by the step of heating the mixture.

3. The method according to claim 1, wherein the normal mode of self-heating ignition is carried out by an ignition pulse unit with an external source sparking generator, running at a frequency in the range of 1-2 Hz.

4. The method according to claim 1, wherein the process of formation and maintenance of the internal heat source burning is carried out with a turbo charging unit.

5. The method according to claim 1, wherein, in the start-up mode, the step of introducing water is carried out by pumping in an amount of 40-50% of maximum amount of a normal working volume of the first chamber under pressure 0.3-0.5 MPa, and heating is carried out until formation of water steam at a temperature 450°C-500°C, said heating being carried out by the external source of heat.

6. The method according to claim 1, wherein, in the start-up mode, the external source comprises an ignition spark pulse device with an independent sparking source, such that the device operates at a frequency in the range of 40-50 Hz.

7. A thermal gas plant for hydrogen-containing gaseous fuel production comprising a corpus, a burner system, firing chamber, unit for components mixing, pulse ignition unit, pipes and start-up system, including independent induction heat source, start-up burner with a supply of combustible fuel wherein the corpus comprises two cylindrical tubes, an inner tube positioned in an outer tube, said tubes being arranged in a concentric configuration with a gap therebetween, the gap being divided into three reaction chambers, each chamber corresponding to a stage of a process of making a fuel mixture, such that the gap includes: a first chamber with an independent induction source of heat, , a second chamber for mixing steam and hydrocarbon containing gas to form a mixture and heating the steam and gas mixture, a third chamber for carrying out an additional heating stage for the fuel mixture producing, wherein an internal cavity defined by the inner tube forms a firing chamber, the plant further comprising: a mixing unit for mixing the steam and the gas, the unit comprising an injector with separate inlets for water, in the form of steam, and the gas, separate discharge containers for said water and gas; wherein the discharge container for water is fluidly coupled to an inlet of the first chamber and wherein an outlet of the first chamber is fluidly coupled to a first inlet of the mixing unit, a second inlet of the mixing unit is fluidly coupled to the discharge container for the gas, an outlet of the mixer unit is fluidly coupled to the second chamber and the second chamber is fluidly coupled to the third chamber, the third chamber being adapted for receiving the heated mixture from the second chamber.

8. A thermal gas plant in accordance with claim 7 wherein a ratio of radii of tubes forming the corpus is: 0.3<(R1/r2)>0.1; wherein R1- is an outer diameter of the inwardly located tube, r2- is an inner diameter of outer tube.

9. A thermal gas plant in accordance with claim 7 wherein a turbo charging unit is installed on the inlet of the burner system.

10. A thermal gas plant in accordance with claim 7 wherein a constant overpressure of 0.3-0.5 MPa is supported in the discharge containers.