JP2576006B2 - Power generation method - Google Patents
Power generation methodInfo
- Publication number
- JP2576006B2 JP2576006B2 JP4287504A JP28750492A JP2576006B2 JP 2576006 B2 JP2576006 B2 JP 2576006B2 JP 4287504 A JP4287504 A JP 4287504A JP 28750492 A JP28750492 A JP 28750492A JP 2576006 B2 JP2576006 B2 JP 2576006B2
- Authority
- JP
- Japan
- Prior art keywords
- weight
- boiler
- less
- power generation
- sulfur content
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000010248 power generation Methods 0.000 title claims description 23
- 238000000034 method Methods 0.000 title claims description 18
- 229910052717 sulfur Inorganic materials 0.000 claims description 47
- 239000011593 sulfur Substances 0.000 claims description 47
- 239000007789 gas Substances 0.000 claims description 40
- 239000010779 crude oil Substances 0.000 claims description 37
- 238000009835 boiling Methods 0.000 claims description 36
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 34
- 238000004821 distillation Methods 0.000 claims description 12
- 150000003839 salts Chemical class 0.000 claims description 11
- 238000005292 vacuum distillation Methods 0.000 claims description 7
- 239000000567 combustion gas Substances 0.000 claims description 4
- 238000000926 separation method Methods 0.000 claims description 2
- 210000003918 fraction a Anatomy 0.000 claims 1
- 238000002360 preparation method Methods 0.000 claims 1
- 239000000446 fuel Substances 0.000 description 31
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 16
- 239000003921 oil Substances 0.000 description 10
- 239000003345 natural gas Substances 0.000 description 8
- 238000002485 combustion reaction Methods 0.000 description 6
- 239000000295 fuel oil Substances 0.000 description 6
- 229910052720 vanadium Inorganic materials 0.000 description 6
- LEONUFNNVUYDNQ-UHFFFAOYSA-N vanadium atom Chemical compound [V] LEONUFNNVUYDNQ-UHFFFAOYSA-N 0.000 description 6
- 238000011033 desalting Methods 0.000 description 5
- 239000012535 impurity Substances 0.000 description 5
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000005504 petroleum refining Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 239000008186 active pharmaceutical agent Substances 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002828 fuel tank Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 229910001385 heavy metal Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 239000003208 petroleum Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 238000001577 simple distillation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000010792 warming Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01K—STEAM ENGINE PLANTS; STEAM ACCUMULATORS; ENGINE PLANTS NOT OTHERWISE PROVIDED FOR; ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES
- F01K23/00—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids
- F01K23/02—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled
- F01K23/06—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle
- F01K23/10—Plants characterised by more than one engine delivering power external to the plant, the engines being driven by different fluids the engine cycles being thermally coupled combustion heat from one cycle heating the fluid in another cycle with exhaust fluid of one cycle heating the fluid in another cycle
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Liquid Carbonaceous Fuels (AREA)
- Production Of Liquid Hydrocarbon Mixture For Refining Petroleum (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、低硫黄原油からボイラ
のリパワリングガスタービン用の低沸点留分と、スチー
ムタービン用の高沸点留分に分離し、リパワリングガス
タービンとボイラのスチームタービンを駆動して発電す
る方法、及び、その設備に関する。The present invention relates to a low-boiling fraction for repowering gas turbines of boilers from low-sulfur crude oil and steam.
TECHNICAL FIELD The present invention relates to a method for generating power by separating a high-boiling fraction for a steam turbine and driving a repowering gas turbine and a steam turbine of a boiler , and a facility therefor .
【０００２】[0002]
【従来の技術】現在、日本の火力発電は、ボイラで生じ
た高温高圧のスチームでタービンを回転する発電方法が
スチームタービンによる方法が主なものである。そのボ
イラ用油燃料としては、主に重油や原油が使用されてい
る。それらの中で、原油焚きの場合はワックス分が多
く、かつ、ＳＯX の発生量の少ない低硫黄原油、例えば
ミナス産原油や大慶産原油が公害防止の観点から好んで
使用されている。また、最近では良質燃料であるＬＮＧ
を用いたコンバインド・サイクル発電が採用されてい
る。2. Description of the Related Art At present, thermal power generation in Japan mainly uses a steam turbine as a power generation method in which a turbine is rotated by high-temperature and high-pressure steam generated in a boiler. Fuel oil and crude oil are mainly used as boiler oil fuels. Among them, in the case of oil-fired much wax component, and, SO X amount of generation less low-sulfur crude oil, for example Minas crude oil and Daqing crude oil is used in favor in view of pollution control. Recently, LNG which is a high quality fuel
Combined cycle power generation using
【０００３】上記の原油や重油をボイラで焚いてスチー
ムタービンで発電する方法は、熱効率が約４０％／ＨＨ
Ｖ基準（ＨＨＶ：高位発熱量）と比較的低い。これに対
し、ＬＮＧ焚きで採用されているコンバインド・サイク
ル発電は、圧縮機で圧縮した空気で燃料を燃焼するか、
あるいは、圧縮空気を燃焼熱で加熱して高温高圧ガスを
発生し、タービンを回転して発電すると共に、その燃焼
排ガスの有する高温熱エネルギーをボイラで回収してス
チームタービンを回転し、再度発電する方法であり、熱
効率は約４８％／ＨＨＶ基準と高いことが特徴である。[0003] The above-described method in which crude oil or heavy oil is fired in a boiler to generate power using a steam turbine has a thermal efficiency of about 40% / HH.
V standard (HHV: high heating value) is relatively low. On the other hand, the combined cycle power generation adopted in LNG firing burns fuel with air compressed by a compressor,
Alternatively, high-temperature and high-pressure gas is generated by heating the compressed air with combustion heat, the turbine is rotated to generate power, and the high-temperature heat energy of the combustion exhaust gas is recovered by a boiler, and the steam turbine is rotated to generate power again. The method is characterized by a high thermal efficiency of about 48% / HHV standard.
【０００４】さらに最近、既設のボイラの発電量を簡便
な方法で向上させるために、ボイラの傍らにガスタービ
ンを追加設置し、ガスタービンで発電するとともに、ガ
スタービンの高温燃焼排ガスを空気の代わりボイラに送
り込み、ボイラ燃料を燃焼させる、所謂ボイラのリパワ
リングと称される方法が知られるようになった。このコ
ンバインド・サイクル発電に類似したボイラのリパワリ
ング方法によれば、約１３ｖｏｌ％以上の酸素が残って
いるガスタービンの燃焼排ガスを用いてボイラ燃料を焚
くので、ボイラの燃焼には特に支障はない上、ガスター
ビンの燃焼排ガスの有する５８０℃程度の高温熱エネル
ギーをボイラで有効利用できるので、ボイラの燃料が節
約でき、全体として発電量を増すとともに、燃料当たり
の発電効率（熱効率）も向上させることができる。[0004] More recently, in order to improve the amount of power generated by an existing boiler in a simple manner, a gas turbine is additionally installed beside the boiler, and power is generated by the gas turbine. A method called so-called boiler repowering, in which the fuel is sent into a boiler and boiler fuel is burned, has become known. According to the boiler repowering method similar to the combined cycle power generation, the boiler fuel is burned using the combustion exhaust gas of the gas turbine in which about 13 vol% or more of oxygen remains, so that there is no particular problem in the boiler combustion. Since the boiler can effectively use the high-temperature heat energy of about 580 ° C of the combustion exhaust gas of the gas turbine, the fuel of the boiler can be saved, the power generation amount as a whole is increased, and the power generation efficiency (thermal efficiency) per fuel is also improved. Can be.
【０００５】ボイラの燃料には、上記のように原油や重
油が使用されるので、通常ボイラの周囲にはこれらの燃
料用タンクなどの貯蔵設備が既に備わっている。しか
し、これに上記のリパワリングのガスタービンを新たに
設置しようとすると、その燃料は通常天然ガスであるた
め、その貯蔵設備も新たに設置しなければならない。天
然ガスの輸送や貯蔵には極低温が必要であり、新たに多
大な設備費が必要となる上、都市部において天然ガスを
扱うことは防災上の観点からも制約が多い。また、ＬＮ
Ｇ貯蔵設備から気化した天然ガスをパイプラインにより
石油火力発電所に輸送する場合も、膨大な費用がかか
る。したがって、リパワリングのガスタービンにも天然
ガスに代えて原油や重油を使用することができればその
メリットは多大である。[0005] As described above, crude oil and heavy oil are used for boiler fuel. Therefore, storage facilities such as fuel tanks are usually provided around the boiler. However, if a new gas turbine for repowering is to be installed in this, the fuel is usually natural gas, and the storage facility must be newly installed. Extremely low temperatures are required for transport and storage of natural gas, which requires a large amount of new equipment costs, and handling natural gas in urban areas has many restrictions from the viewpoint of disaster prevention. Also, LN
Transporting natural gas vaporized from the G storage facility to an oil-fired power plant via a pipeline also involves enormous costs. Therefore, if crude oil or heavy oil can be used instead of natural gas for a repowering gas turbine, the merits are great.
【０００６】欧米では、既に原油や残渣油をガスタービ
ンの燃料に使用する試みがなされているが、それらに含
まれる不純物のため、トラブルが多く発生し、軽油やＬ
ＮＧを使用する場合に比べて保守費用が嵩むという問題
が指摘されている。そして、ガスタービンに使用する油
燃料の不純物含有量として、塩分を０．５ｐｐｍ以下、
硫黄分を０．０５重量％以下、バナジウムを０．５ｐｐ
ｍ以下に制限することが望ましいとされている。特に、
塩分とバナジウムは相互に影響してガスタービンのブレ
ード金属の溶融点を低下させたり、灰分のブレードへの
粘着の原因となる。また、硫黄分の上記基準も同様にブ
レードの保護の観点から設定されたものである。しか
し、ボイラ焚き燃料として使用される前記のミナス産原
油や大慶産原油のような低硫黄原油でも、これらの基準
を満足できず、ガスタービン燃料としてそのまま使用す
ることができないという問題がある。In Europe and the United States, attempts have been made to use crude oil and residual oil as fuel for gas turbines. However, impurities are contained in these oils, which often cause troubles.
It has been pointed out that the maintenance cost is higher than when NG is used. And, as an impurity content of the oil fuel used in the gas turbine, the salt content is 0.5 ppm or less,
Sulfur content less than 0.05% by weight, vanadium 0.5pp
It is said that it is desirable to limit it to m or less. Especially,
Salt and vanadium interact to lower the melting point of the gas turbine blade metal and cause ash to stick to the blade. Further, the above-mentioned standard of the sulfur content is similarly set from the viewpoint of blade protection. However, even low-sulfur crude oil such as the aforementioned Minas-produced crude oil and Daqing-produced crude oil used as boiler-burning fuel cannot satisfy these standards and cannot be directly used as gas turbine fuel.
【０００７】[0007]
【発明が解決しようとする課題】本発明は、上記の問題
点を解消し、天然ガスに代えて低硫黄原油から、既設ボ
イラに設置されるリパワリングガスタービン用燃料を分
離し、リパワリングガスタービンとボイラのスチームタ
ービンを駆動して発電する方法、及び、その設備を提供
しようとするものである。The present invention is to challenge it to solve] is to solve the above problems, minute from low-sulfur crude oil instead of natural gas, the re powering a gas turbine fuel to be installed in existing boilers
Release, repowering gas turbine and steam boiler
It is intended to provide a method of generating electricity by driving a fuel bin and equipment thereof .
【０００８】[0008]
【問題点を解決するための手段】本発明は、（１）原油
焚き又は重油焚きボイラによる蒸気発電とガスタービン
による発電を行う方法において、これらの発電設備に常
圧蒸留設備及び／又は減圧蒸留設備を併設し、塩分含有
量を０．５ｐｐｍ以下に調整した硫黄分１重量％以下の
低硫黄原油を常圧蒸留又は減圧蒸留により、硫黄含有量
が０．５重量％以下の低沸点留分と、硫黄含有量が０．
５重量％を超える高沸点留分とに分離し、０．５重量％
以下の低沸点留分をガスタービンに供給して燃焼し、か
つ、ガスタービンの燃焼ガスをボイラに供給し、ボイラ
に硫黄含有量が０．５重量％を超える高沸点留分を供給
して燃焼させることを特徴とする発電方法、及び、
（２）原油焚き又は重油焚きボイラによる蒸気発電設
備、及び、ガスタービン発電設備からなる発電設備にお
いて、塩分含有量を０．５ｐｐｍ以下に調整した硫黄分
１重量％以下の低硫黄原油を、硫黄含有量が０．５重量
％以下の低沸点留分と、硫黄含有量が０．５重量％を超
える高沸点留分とに分離するための常圧蒸留設備及び／
又は減圧蒸留設備を併設し、前記設備で分離された０．
５重量％以下の低沸点留分を前記ガスタービンに供給す
る導管と、前記ガスタービンの燃焼ガスをボイラに供給
する導管と、硫黄含有量が０．５重量％を超える高沸点
留分を前記ボイラに供給する導管とを設けたことを特徴
とする発電設備である。[Means for Solving the Problems] The present invention relates to (1) crude oil
Steam power generation and gas turbine using a fired or heavy oil fired boiler
In the method of generating electricity by
Includes pressure distillation equipment and / or vacuum distillation equipment, containing salt
The sulfur content is adjusted to 0.5 ppm or less and the sulfur content is 1% by weight or less.
Sulfur content of low sulfur crude oil by atmospheric distillation or vacuum distillation
Is 0.5% by weight or less and a sulfur content of 0.1%.
Separated into high boiling fractions exceeding 5% by weight, 0.5% by weight
The following low-boiling fractions are supplied to a gas turbine and burned.
Supply the combustion gas from the gas turbine to the boiler,
High-boiling fraction with sulfur content exceeding 0.5% by weight
Power generation method characterized by burning and burning;
(2) Steam power generation using a crude oil-fired or heavy oil-fired boiler
Equipment and gas turbine power generation equipment.
And the sulfur content adjusted to a salt content of 0.5 ppm or less
1% by weight or less of low sulfur crude oil with a sulfur content of 0.5% by weight
% Low boiling point fraction and sulfur content exceeding 0.5% by weight
Distillation apparatus for separating into high boiling fractions
Alternatively, a vacuum distillation facility is provided in parallel, and the oil is separated by the above facility.
A low boiling fraction of 5% by weight or less is supplied to the gas turbine.
Pipes and the combustion gas from the gas turbine to the boiler
And high boiling point with sulfur content exceeding 0.5% by weight
And a conduit for supplying a fraction to the boiler.
Power generation equipment .
【０００９】[0009]
【作用】本発明者等は、天然ガスに代わりに低硫黄原油
を既設ボイラに設置されるリパワリングガスタービンの
燃料に使用する方法について鋭意検討した結果、ガスタ
ービンで使用する燃料としては上記基準のように不純物
含有量の少ない燃料が望ましいものの、既設ボイラにお
いては不純物含有量の制限が比較的緩やかであること、
低硫黄原油を簡単な脱塩処理と簡単な蒸留により低沸点
留分と高沸点留分に分離するだけで必要な全ての基準を
満たすガスタービン用燃料と、不純物含有量の制限が比
較的ゆるやかなボイラ用燃料を同時に得られることに注
目し、本発明を完成させることができた。The present inventors have conducted intensive studies on a method of using low-sulfur crude oil instead of natural gas as fuel for a repowering gas turbine installed in an existing boiler. Although a fuel with a low impurity content is desirable as described above, the restrictions on the impurity content in the existing boiler are relatively moderate,
Gas turbine fuels that meet all the necessary standards simply by separating low-sulfur crude oil into low-boiling fractions and high-boiling fractions by simple desalting and simple distillation, and the restrictions on impurity content are relatively loose The present invention was able to be completed by noting that it is possible to obtain a suitable boiler fuel at the same time.
【００１０】[0010]
【実施例】図１は、本発明の１実施例であるボイラのリ
パワリング発電用燃料の製造方法を説明するための図で
ある。図１では主要工程のみ示し、付属設備等は省略し
てある。本発明で用いる低硫黄原油は、燃焼排ガスの脱
硫工程を簡略化できることからできるだけ硫黄含有量の
少ないものが好ましい。通常硫黄含有量が１重量％以
下、さらに好ましくは０．９重量％以下の原油が用いら
れる。このような原油としては前記のワックス分の多い
ミナス産原油や大慶産原油等を挙げることができる。こ
れらの原油に含まれるバナジウム量は通常０．４〜０．
５ｐｐｍである。これらの中で、ミナス産原油は硫黄含
有量が約０．１重量％以下と少なく、特に好ましい。FIG. 1 is a diagram for explaining a method for producing a fuel for repowering power generation of a boiler according to one embodiment of the present invention. FIG. 1 shows only the main steps, and omits ancillary equipment and the like. The low-sulfur crude oil used in the present invention preferably has as low a sulfur content as possible because the desulfurization step of the combustion exhaust gas can be simplified. Usually, a crude oil having a sulfur content of 1% by weight or less, more preferably 0.9% by weight or less is used. Examples of such crude oil include Minas crude oil and Daqing crude oil, which have a high wax content. The amount of vanadium contained in these crude oils is usually 0.4 to 0.5.
It is 5 ppm. Among these, Minas crude oil has a low sulfur content of about 0.1% by weight or less, and is particularly preferable.
【００１１】本発明においては、このような低硫黄原油
を脱塩処理工程１で塩分含有量を０．５ｐｐｍ以下に調
整する。脱塩方法としては、通常原油に水を加えて洗浄
し、例えば２万ボルト程度の静電圧を印加して水層を分
離することにより塩分含有量を低下させることができ
る。通常の石油精製では塩分含有量が３ｐｐｍ以下とし
ているが、上記水洗脱塩方法を繰り返すことにより容易
に塩分含有量を０．５ｐｐｍ以下とすることができる。In the present invention, the salt content of such a low sulfur crude oil is adjusted to 0.5 ppm or less in the desalting treatment step 1. As a desalting method, usually, water is added to crude oil for washing, and a salt content can be reduced by applying an electrostatic voltage of, for example, about 20,000 volts and separating an aqueous layer. In ordinary petroleum refining, the salt content is set to 3 ppm or less, but the salt content can be easily reduced to 0.5 ppm or less by repeating the above water washing and desalting method.
【００１２】塩分含有量を０．５ｐｐｍ以下に調整され
た低硫黄原油は、常圧蒸留工程２または減圧蒸留工程３
において、硫黄含有量が０．０５重量％以下の低沸点留
分と硫黄含有量が０．０５重量％を超える高沸点留分に
分離することができる。上記の蒸留はどちらか一方のみ
でも良いし、常圧蒸留工程２で分離された沸点の高い留
分をさらに減圧蒸留工程３で分離してもよい。使用原油
により硫黄含有量が境界値０．０５重量％を超える沸点
留分か、留分割合が異なるが上記のミナス産原油の場合
は軽油留分（常圧沸点に換算して約３４０〜４６０ OＦ
以下）乃至ガス油留分（同４６０〜６５０ OＦ）以下の
沸点留分とそれを超える沸点留分に分離することによ
り、硫黄含有量０．０５重量％の低沸点留分を約４割
と、硫黄含有量０．０５重量％を超える高沸点留分を約
６割の割合で得ることができる。しかも、該低沸点留分
には、バナジウムなどの重金属はほとんど検出されず、
リパワリングのガスタービン用燃料に適したものであ
る。The low-sulfur crude oil whose salt content is adjusted to 0.5 ppm or less is subjected to the atmospheric distillation step 2 or the vacuum distillation step 3
Can be separated into a low-boiling fraction having a sulfur content of 0.05% by weight or less and a high-boiling fraction having a sulfur content of more than 0.05% by weight. Either one of the above distillations may be performed, or the high boiling fraction separated in the atmospheric distillation step 2 may be further separated in the reduced pressure distillation step 3. The boiling point fraction whose sulfur content exceeds the boundary value of 0.05% by weight or the fraction ratio varies depending on the crude oil used, but in the case of the above Minas crude oil, the light oil fraction (about 340 to 460 in terms of normal pressure boiling point) is used. OF
Below) to by separating the gas oil fraction (the four hundred sixty to six hundred and fifty O F) below boiling fraction and boiling fraction greater than, about 40% of the low-boiling fraction of the sulfur content of 0.05 wt% And a high-boiling fraction having a sulfur content exceeding 0.05% by weight can be obtained in a proportion of about 60%. Moreover, heavy metals such as vanadium are hardly detected in the low boiling fraction,
It is suitable for repowering gas turbine fuel.
【００１３】上記のミナス産原油の例では、脱塩処理に
より塩分含有量を０．５ｐｐｍ以下に調整した原油を沸
点６５０ OＦ以下の留分と、それを超える留分とに分離
する場合には、６５０ OＦ以下の留分割合は４３．２体
積％であり、硫黄含有量は０．０３３重量％、バナジウ
ムは検出されず、リパワリングのガスタービン用燃料と
して最適の燃料を得ることができる。この低沸点留分を
採取した後の残渣油（ＲＥＤＵＣＥＤ−ＣＲＵＤＥ、沸
点６５０ OＦ以上、比重２６．５ OＡＰＩ、流動点１０
６ OＦ）は硫黄含有量が約０．１５重量％と良質重油並
に低く、バナジウム／ニッケル／鉄分の各含有量は約１
／１５／１０ｐｐｍであり、ボイラ用燃料としては、何
等支障なく使用できるものである。In the case of the above-mentioned crude oil produced in Minas, the crude oil whose salt content has been adjusted to 0.5 ppm or less by desalting treatment is separated into a fraction having a boiling point of 650 ° F or less and a fraction having a boiling point of 650 ° F or more. The fraction of 650 ° F. or less is 43.2% by volume, the sulfur content is 0.033% by weight, and vanadium is not detected, so that an optimal fuel can be obtained as a fuel for a gas turbine for repowering. . This was collected low boiling fraction oil residue (REDUCED-CRUDE, boiling 650 O F above, the specific gravity 26.5 O API, pour point 10
6 OF ) has a sulfur content of about 0.15% by weight, which is as low as high quality heavy oil, and each content of vanadium / nickel / iron is about 1%.
/ 15/10 ppm, and can be used without any trouble as boiler fuel.
【００１４】本発明において、使用する低硫黄原油によ
り硫黄含有量が０．０５重量％を超える高沸点留分（あ
るいは残渣油）の割合が多い場合は、これをさらに分離
して上記ガスタービン用基準を満たす燃料を採取するこ
とも可能である。このような残渣油をさらに分離する方
法としては、高温・高圧の溶剤を用いる公知の超臨界溶
剤抽出・分離法（例えば、特開昭５７─３１９８９号公
報、特開昭５９─１７０１９１号公報）を用いることが
できる。In the present invention, when the proportion of a high-boiling fraction (or residual oil) having a sulfur content exceeding 0.05% by weight due to the low-sulfur crude used is large, it is further separated and separated for the gas turbine. It is also possible to collect fuel that meets the criteria. As a method for further separating such residual oil, a known supercritical solvent extraction / separation method using a high-temperature and high-pressure solvent (for example, JP-A-57-31989, JP-A-59-170191). Can be used.
【００１５】[0015]
【発明の効果】本発明は、上記の構成を採用することに
より、脱塩処理した低硫黄原油から常圧蒸留又は減圧蒸
留で低沸点留分と高沸点留分に分離することにより、必
要な全ての基準を満たすガスタービン用燃料及びボイラ
用燃料を得ることができる。これらの燃料をボイラのリ
パワリングガスタービン及びそのボイラに各々使用する
ことで、ガスタービンの保守費用を抑えながら発電量を
増し、しかも全量をボイラで焚いてスチームタービンに
より発電する場合の熱効率約４０％よりも高い熱効率で
発電することができ、省エネルギー及び二酸化炭素によ
る地球温暖化防止やＳＯX などの有害物質の発生抑制の
観点から極めて有利である。また、既設のボイラの付近
にガスタービンに焚く天然ガスのための貯蔵設備も不要
であり、簡便にリパワリングを導入できる経済的利点も
非常に大きい。According to the present invention, by adopting the above constitution, a low-sulfur crude oil having a low boiling point and a high-boiling fraction can be separated from a desalted low-sulfur crude oil by atmospheric distillation or vacuum distillation. It is possible to obtain gas turbine fuel and boiler fuel that meet all standards. By using these fuels for the boiler's repowering gas turbine and its boiler, the amount of power generation is increased while maintaining the maintenance cost of the gas turbine, and the thermal efficiency is approximately 40% when the entire amount is fired by the boiler and generated by the steam turbine. It can be generated by higher thermal efficiency than is highly advantageous from the viewpoint of suppressing generation of harmful substances such as global warming and SO X by energy conservation and carbon dioxide. In addition, there is no need for a storage facility for natural gas to be fired in the gas turbine near the existing boiler, and the economic advantage that repowering can be easily introduced is very large.
【図１】本発明の１実施例である、低硫黄原油からボイ
ラのリパワリング発電用燃料及びそのボイラ用燃料を製
造するプロセスの説明図である。FIG. 1 is an explanatory view of a fuel for repowering power generation of a boiler from low-sulfur crude oil and a process for producing the fuel for the boiler, which is one embodiment of the present invention.
フロントページの続き (56)参考文献 特開 昭60−106883（ＪＰ，Ａ) 特開 昭57−177089（ＪＰ，Ａ) 特開 昭52−25806（ＪＰ，Ａ) 特開 昭59−74185（ＪＰ，Ａ) 特開 昭55−165992（ＪＰ，Ａ) 新石油精製プロセス、社団法人石油学 会編、株式会社幸書房、昭和59年12月25 日発行、17〜18ページContinuation of front page (56) References JP-A-60-106883 (JP, A) JP-A-57-177089 (JP, A) JP-A-52-25806 (JP, A) JP-A-59-74185 (JP , A) JP-A-55-165992 (JP, A) New petroleum refining process, edited by The Japan Petroleum Institute, Koshobo Co., Ltd., published on December 25, 1984, pp. 17-18.
Claims (2)
発電とガスタービンによる発電を行う方法において、こ
れらの発電設備に常圧蒸留設備及び／又は減圧蒸留設備
を併設し、塩分含有量を０．５ｐｐｍ以下に調整した硫
黄分１重量％以下の低硫黄原油を常圧蒸留及び／又は減
圧蒸留により、硫黄含有量が０．５重量％以下の低沸点
留分と、硫黄含有量が０．５重量％を超える高沸点留分
とに分離し、０．５重量％以下の低沸点留分をガスター
ビンに供給して燃焼し、かつ、ガスタービンの燃焼ガス
をボイラに供給し、ボイラに硫黄含有量が０．５重量％
を超える高沸点留分を供給して燃焼させることを特徴と
する発電方法。1. Steam from a crude oil-fired or heavy oil-fired boiler
In the method of power generation and gas turbine power generation,
Atmospheric distillation equipment and / or vacuum distillation equipment
With sulfur content adjusted to 0.5 ppm or less
Atmospheric distillation and / or reduction of low sulfur crude oil with yellow content of 1% by weight or less
Low boiling point with sulfur content of 0.5% by weight or less by pressure distillation
Fractions and high-boiling fractions with a sulfur content exceeding 0.5% by weight
And a low boiling fraction of 0.5% by weight or less
Combustion gas supplied to a bin and combustion gas from a gas turbine
To the boiler, the boiler has a sulfur content of 0.5% by weight
Characterized by supplying and burning high boiling fractions
Power generation method .
発電設備、及び、ガスタービン発電設備からなる発電設
備において、塩分含有量を０．５ｐｐｍ以下に調整した
硫黄分１重量％以下の低硫黄原油を、硫黄含有量が０．
５重量％以下の低沸点留分と、硫黄含有量が０．５重量
％を超える高沸点留分とに分離するための常圧蒸留設備
及び／又は減圧蒸留設備を併設し、前記設備で分離され
た０．５重量％以下の低沸点留分を前記ガスタービンに
供給する導管と、前記ガスタービンの燃焼ガスをボイラ
に供給する導管と、硫黄含有量が０．５重量％を超える
高沸点留分を前記ボイラに供給する導管とを設けたこと
を特徴とする発電設備。2. Steam from a crude oil-fired or heavy oil-fired boiler
Power generation facilities and power generation facilities consisting of gas turbine power generation facilities
In the preparation, the salt content was adjusted to 0.5 ppm or less
Low-sulfur crude oil having a sulfur content of 1% by weight or less has a sulfur content of 0.1%.
Low boiling fraction of 5% by weight or less and sulfur content of 0.5% by weight
% Distillation equipment for separation into high boiling fractions exceeding
And / or a vacuum distillation facility, which is separated by the facility
0.5% by weight or less of low boiling fraction
A supply conduit and a boiler for combusting gas from the gas turbine
And the sulfur content exceeds 0.5% by weight
A conduit for supplying a high-boiling fraction to the boiler;
Power generation equipment characterized by the following .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4287504A JP2576006B2 (en) | 1992-10-26 | 1992-10-26 | Power generation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4287504A JP2576006B2 (en) | 1992-10-26 | 1992-10-26 | Power generation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH06207180A JPH06207180A (en) | 1994-07-26 |
| JP2576006B2 true JP2576006B2 (en) | 1997-01-29 |
Family
ID=17718199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4287504A Expired - Lifetime JP2576006B2 (en) | 1992-10-26 | 1992-10-26 | Power generation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2576006B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1135950A (en) * | 1996-12-26 | 1999-02-09 | Mitsubishi Heavy Ind Ltd | Power generation method and power generation device |
| AU2002210909A1 (en) * | 2000-10-24 | 2002-05-06 | Jgc Corpopation | Refined oil and process for producing the same |
| JP4634538B1 (en) * | 2010-05-27 | 2011-02-16 | 住友商事株式会社 | Hybrid thermal power generation system and construction method thereof |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5225806A (en) * | 1975-08-21 | 1977-02-26 | Idemitsu Kosan Co Ltd | Method and appapatus for the desalting of crude oil |
| JPS592479B2 (en) * | 1979-06-12 | 1984-01-18 | 益二 滝沢 | Method for producing high-speed diesel fuel and lubricating oil from paraffin heavy oil |
| JPS57177089A (en) * | 1981-04-24 | 1982-10-30 | Hitachi Ltd | Device for treating fuel oil |
| FR2532946A1 (en) * | 1982-09-14 | 1984-03-16 | Raffinage Cie Francaise | PROCESS FOR TREATING A PRE-RAW PETROLEUM AT ITS ATMOSPHERIC PRESSURE DISTILLATION |
| JPS60106883A (en) * | 1983-11-16 | 1985-06-12 | Chiyoda Chem Eng & Constr Co Ltd | Method for removing salt in heavy hydrocarbon oil |
-
1992
- 1992-10-26 JP JP4287504A patent/JP2576006B2/en not_active Expired - Lifetime
Non-Patent Citations (1)
| Title |
|---|
| 新石油精製プロセス、社団法人石油学会編、株式会社幸書房、昭和５９年１２月２５日発行、１７〜１８ページ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH06207180A (en) | 1994-07-26 |
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