WO2020054088A1

WO2020054088A1 - Synthetic gas production system for low-carbon ft synthetic oil production

Info

Publication number: WO2020054088A1
Application number: PCT/JP2018/043875
Authority: WO
Inventors: 伊藤　信三
Original assignee: 株式会社ユーリカエンジニアリング
Priority date: 2018-09-14
Filing date: 2018-11-28
Publication date: 2020-03-19
Also published as: WO2020054063A1; WO2020054138A1

Abstract

In this synthetic gas production system for low-carbon FT synthetic oil production, there are two types of fuel gas, a fuel gas that is rich in carbon monoxide and a fuel gas that can provide hydrogen; carbon monoxide is separated and hydrogen is secured from these two types of fuel gas, and a mixing device is provided which creates a synthetic gas by blending the separated carbon monoxide and the secured hydrogen such that the molar ratio of hydrogen to carbon monoxide is a target value. The capacity ratio in a standard state of the two types of fuel gas is set on the basis of the aforementioned target value and the proportion of carbon monoxide and the proportion of hydrogen contained in the fuel gas that is rich in carbon monoxide and the fuel gas that can provide hydrogen.

Description

Synthetic gas production system for low carbon FT synthetic oil production

The present invention relates to a system for producing a synthesis gas suitable for producing a low carbon FT synthetic oil.

The problem of global warming is increasing in severity, and there is a strong demand for reduction of carbon dioxide emissions, and there is a movement to restrict the use of petroleum fuels in automobiles, airplanes and the like. From such a background, the conversion of biomass to liquid fuel (BTL: Biomass To Liquid) has been demanded. Since BTL needs to react hydrogen and carbon monoxide at an appropriate ratio, a method for easily generating a synthesis gas having a target value of a molar ratio of hydrogen to carbon monoxide (H ₂ / CO) is required. I have.
Patent Literature 1 discloses that saccharification of biomass is performed to generate a saccharified liquid, saccharified liquid is subjected to methane fermentation treatment to generate methane fermentation biogas, and a steam reforming method, a partial oxidation method, and the like are used from the methane fermentation biogas. It is described that a synthetic gas containing hydrogen and carbon monoxide as main components is generated using FT, and the synthetic gas is subjected to FT synthesis processing to generate an FT synthetic oil.
Patent Document 2 discloses a pyrolysis furnace that generates a pyrolysis gas from a biomass raw material, a gas separator that selectively separates H ₂ gas and CO gas from the pyrolysis gas, and separates the H ₂ gas and the CO gas from each other. A liquid oil producing apparatus for synthesizing a liquid hydrocarbon having a storage tank for separately storing, a valve and a regulator for keeping each gas at a constant flow ratio, and a catalytic reactor for polymerizing the gas is described.
Patent Document 3 discloses a hydrogen separation step in which a mixed gas containing hydrogen and carbon monoxide is brought into contact with a hydrogen separation membrane to separate the hydrogen, and an off-gas after contacting the hydrogen separation membrane is converted into a carbon monoxide separation membrane. A carbon monoxide separation step of separating the carbon monoxide by contacting the gas with a gas.
Patent Document 4 discloses a pyrolysis apparatus that pyrolyzes a biomass raw material to produce a biomass gas, a purification apparatus that purifies a biomass gas, and a carbonization method that converts the purified biomass gas into a hydrocarbon oil in the presence of a hydrocarbon synthesis catalyst. In a BLT production system comprising a hydrogen synthesizing unit, a hydrogen supply system for metering and adding hydrogen gas between a refining unit and a hydrocarbon synthesizing unit, and a molar ratio of carbon to hydrogen may be a predetermined value. And an adjusting device for mixing and adjusting biomass gas and hydrogen.
Patent Literature 5 discloses that gasified combustible gas generated by gasifying waste and biomass has a problem in that the raw material is unstable, so that the gasified combustible gas is generated as a by-product combustible gas generated in an ironworks. It is described that they are mixed and used as fuel gas for boilers and heating furnaces.

WO 2015/174518 JP 2010-248459 A Japanese Patent Application Laid-Open No. 2017-202559 International Publication No. 2010/119772 JP 2011-6575 A

In the method described in Patent Document 1, a synthesis gas containing hydrogen and carbon monoxide as main components is generated from a methane fermentation biogas using a steam reforming method, a partial oxidation method, or the like. It does not mention controlling the molar ratio of hydrogen to carbon monoxide to the target value.
Usually, the molar ratio of hydrogen to carbon monoxide supplied to the liquid oil production device is about 2. In the apparatus described in Patent Literature 2, hydrogen and carbon monoxide are separately selectively separated from biomass gas generated by pyrolysis of biomass, and the hydrogen and carbon monoxide are separated at a constant flow rate according to a molar ratio of about 2. Since liquid hydrocarbons are synthesized by performing a polymerization reaction at a specific ratio, there is a shortage of hydrogen separated from a pyrolysis gas rich in carbon monoxide generated from biomass, and it is difficult to effectively use biomass gas.
The gas separation method described in Patent Document 3 mixes three or more gases, separates hydrogen from the mixed gas mixture, and separates carbon monoxide from off-gas after separating hydrogen. Document 3 does not mention a technique of mixing a hydrogen-rich fuel gas and a carbon monoxide-rich fuel gas at a set ratio such that the ratio of hydrogen and carbon monoxide to be separated is a target value.
Although the adjusting device for mixing and adjusting biomass gas and hydrogen described in Patent Document 4 mixes hydrogen with biomass gas so that the molar ratio of carbon and hydrogen becomes a predetermined value, Patent Document 4, It does not show a technique for separating carbon monoxide from biomass gas and appropriately mixing hydrogen with the separated carbon monoxide.
Patent Document 5 shows that gasified combustible gas generated by gasification of waste and biomass is mixed with by-product combustible gas generated in a steel mill and used as fuel gas for boilers and heating furnaces. However, there is no mention of producing a synthesis gas having a target value of a molar ratio of hydrogen to carbon monoxide from a carbon monoxide-rich fuel gas and a hydrogen-rich fuel gas.

The present invention reduces the emission of carbon dioxide gas from a fuel gas rich in carbon monoxide and a fuel gas capable of providing hydrogen, and uses both fuel gases without waste to reduce the molar ratio of hydrogen to carbon monoxide. An object of the present invention is to provide a synthesis gas production system for producing low-carbon FT synthetic oil that can easily and efficiently produce a synthesis gas as a target value.

The present invention provides a synthesis gas production system for producing low-carbon FT synthetic oil, wherein a fuel gas rich in carbon monoxide and a fuel gas capable of providing hydrogen are used as two types of fuel gas, and the two types of fuel gas are used to produce monoxide. A blending device that separates carbon and secures hydrogen, and combines the separated carbon monoxide and the secured hydrogen such that the molar ratio of hydrogen to carbon monoxide becomes a target value to produce synthesis gas. The capacity ratio of the two types of fuel gas in a standard state is defined as the ratio of carbon monoxide and the ratio of hydrogen contained in the fuel gas capable of providing the carbon monoxide-rich fuel gas and hydrogen, and the target value. The most main feature is that the setting is made based on the following.
The two types of fuel gas, the carbon monoxide-rich fuel gas and the fuel gas capable of providing hydrogen, are a gasified gas containing at least a biomass-derived gasified gas rich in carbon monoxide, a hydrogen-rich by-product gas, and a hydrogen-rich by-product gas. Any combination of carbon-rich at least biomass-derived gasified gas and hydrogen, carbon monoxide-rich gasified gas containing at least biomass-derived gasified gas and steam, or a combination of carbon monoxide-rich by-product gas and carbon dioxide-free hydrogen Or one. The gasification gas containing at least biomass-derived gasification gas rich in carbon monoxide is a gasification gas containing at least biomass-derived gasification gas and having a high content (ratio) of carbon monoxide, and a hydrogen-rich by-product gas is , Is a by-product gas having a high hydrogen content (ratio), and a by-product gas rich in carbon monoxide is a by-product gas having a high carbon monoxide content (ratio).

The synthesis gas production system for producing low-carbon FT synthetic oil of the present invention determines the volume ratio of the two types of fuel gas in the standard state to the carbon monoxide-rich gas and the fuel gas capable of providing hydrogen. Since the ratio is set based on the ratio of carbon and the ratio of hydrogen and the target value, the two types of fuel gas can be held at appropriate amounts. As a result, it is possible to prevent the amounts of the two types of fuel gas from being increased more than necessary, and to prevent the system itself, particularly the carbon monoxide separation device, from becoming larger and increasing installation costs and running costs. Further, a synthetic gas for producing a low-carbon FT synthetic oil can be produced using the two types of fuel gas without waste. In addition, since at least one of the two types of fuel gas is a gas generated by reducing the amount of carbon dioxide emission, it is possible to reduce the carbon dioxide emission and produce a low-carbon FT synthetic oil producing synthesis gas. it can.

It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 1st embodiment. It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 2nd embodiment. It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 3rd embodiment. It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 4th embodiment. It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 5th embodiment. It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 6th embodiment. It is a block diagram showing the whole composition of the synthesis gas manufacture system for low carbon FT synthetic oil manufacture concerning a 7th embodiment.

1. Configuration of First Embodiment As shown in FIG. 1, a synthesis gas production system 1 for producing a low-carbon FT synthetic oil according to a first embodiment includes a CO-rich gasified gas supply device 10 and an H ₂ -rich by-product gas. It comprises a supply device 20, a mixing device 30, a hydrogen separation device 40, a carbon monoxide separation device 50, and a blending device 60.

A known FT synthetic oil production device 2 is connected to a blending device 60 that is the final stage of the synthesis gas production system 1 for producing low carbon FT synthetic oil. The FT synthetic oil production apparatus 2 uses a known Fischer-Tropsch process (FT method) to perform a desired reaction from a synthesis gas having a target molar ratio of hydrogen to carbon monoxide using a known Fischer-Tropsch process. Produces FT synthetic oil (liquid hydrocarbon). The FT synthetic oil production apparatus 2 is known, and introduces a synthesis gas having an adjusted composition (H ₂ / CO molar ratio) into a reactor filled with various catalysts to cause a synthesis reaction represented by the chemical formula (1). To produce FT synthetic oil (liquid hydrocarbon).
(2n + 1) H ₂ + nCO → CnH _{2n + 2} + nH ₂ O (1)
According to equation (1), it is necessary to cause hydrogen (H ₂ ) and carbon monoxide (CO) to react at an appropriate ratio. In blending device 60, the molar ratio of hydrogen to carbon monoxide is determined from equation (1). Is adjusted so that the target value is obtained. In the production of the FT synthetic oil, the target value is almost 2, since n in the chemical formula (1) is 5 to 20.

The CO-rich gasification gas supply device 10 includes a gasification furnace that generates a gasification gas and a purification device that purifies the generated gasification gas. When supplied with biomass, preferably woody biomass, such as thinned wood, waste wood, rice straw, straw, rice husk, corn, etc., as a fuel, the gasifier generates a 100% biomass-derived gasified gas. I do. The biomass-derived gasified gas is a gas rich in carbon monoxide. When an example of the composition is shown by volume%, carbon monoxide (CO) 48%, hydrogen (H ₂ ) 16%, methane (CH ₄ ) 16%, Carbon dioxide (CO ₂ ) 13%, hydrocarbon (CmHn) 7%.
When a gasification furnace is supplied with a mixture of biomass and coal as a mixed fuel, the gasification furnace generates a gasified gas derived from a mixed fuel in which a biomass-derived gasification gas and a coal-derived gasification gas are mixed. Further, when the gasification furnace is supplied with a mixture of biomass and waste plastics (not including vinyl chloride) as a mixed fuel, the gasification furnace is derived from a mixed fuel derived from a mixture of biomass-derived gasification gas and waste plastic-derived gasification gas. Generate gasification gas. As described above, the gasification furnace includes at least the biomass-derived gasification gas rich in carbon monoxide, which contains at least the biomass-derived gasification gas and has a high carbon monoxide content (ratio) according to the supplied fuel. Generate gasification gas. Then, the CO-rich gasified gas supply device 10 is connected to the mixing device 30 and purifies the gasified gas including at least the biomass-derived gasified gas generated in the gasification furnace by the purification device and supplies the gasified gas to the mixing device 30.
When a gasification gas containing at least a biomass-derived gasification gas is generated in a gasification furnace and the gasification gas containing at least the biomass-derived gasification gas purified by a purification device is stored in a gas holder, CO-rich gasification is performed. The gas supply device 10 may be a gas holder that stores a gasified gas containing at least a biomass-derived gasified gas rich in carbon monoxide and supplies the gasified gas to the mixing device 30.

The H ₂ rich by-product gas supply device 20 is connected to the mixing device 30 and supplies the mixing device 30 with a hydrogen-rich by-product gas composed of at least one of a coke oven gas and a refinery gas. The hydrogen-rich by-product gas is a gas that has a high hydrogen content rate (ratio) and can provide hydrogen. Coke oven gas is a hydrogen-rich dry distillation gas generated during coke production. Refinery gas is a hydrogen-rich off-gas generated in the crude oil refining process. When an example of the composition of the coke oven gas, which is one of the hydrogen-rich by-product gases, is shown by volume%, carbon monoxide (CO) 7%, hydrogen (H ₂ ) 56%, methane (CH ₄ ) 27%, Carbon dioxide (CO2) is 7% and hydrocarbon (CmHn) is 3%. If the coke oven gas and a hydrogen-rich product gas comprising at least one refinery gas so as to store the gas holder, H ₂ rich product gas supply device 20 stores hydrogen rich product gas , A gas holder to be supplied to the mixing device 30.

The mixing device 30 is supplied with the gasified gas containing at least the biomass-derived gasified gas rich in carbon monoxide from the CO-rich gasified gas supply device 10, and is supplied with the hydrogen-rich by-product gas from the H ₂ -rich by-product gas supply device 20. The gas is supplied, and the gasification gas containing at least the biomass-derived gasification gas is mixed with the hydrogen-rich by-product gas to generate a mixed gas (first mixed gas). As described above, the mixing device 30 includes two types of gasification gas (carbon monoxide-rich fuel gas) including at least biomass-derived gasification gas and hydrogen-rich by-product gas (fuel gas capable of providing hydrogen). Fuel gas is supplied.

Since the synthesis gas produced by the synthesis gas production system 1 for producing low-carbon FT synthetic oil is a gas whose molar ratio of hydrogen to carbon monoxide is almost equal to a target value of 2, the mixing device 30 is provided with at least biomass-derived gasification. The volume ratio of the gasified gas containing gas to the hydrogen-rich by-product gas under standard conditions is at least the ratio of carbon monoxide contained in the gasified gas containing the biomass-derived gasified gas and the hydrogen-rich by-product gas. And hydrogen so as to have a value set based on the ratio of hydrogen and the target value. Since the gasification gas containing at least the biomass-derived gasification gas is rich in carbon monoxide, a hydrogen-rich by-product gas is mixed to supplement hydrogen in the production of a hydrogen-rich synthesis gas.

For example, if the biomass-derived gasified gas having the above composition and the hydrogen-rich by-product gas are two types of fuel gas, the ratio of carbon monoxide contained in the biomass-derived gasified gas in a standard state is 48%, The ratio is 16%, the ratio of carbon monoxide contained in the hydrogen-rich by-product gas is 7%, and the ratio of hydrogen is 56%. Therefore, when the biomass-derived gasified gas and the hydrogen-rich by-product gas are mixed at a volume ratio (1: x), the ratio of carbon monoxide contained in the mixed gas is 0.48 + 0.07x, and the ratio of hydrogen is , 0.16 + 0.56x. The capacity of the hydrogen-rich by-product gas for setting the capacity ratio of hydrogen to carbon monoxide contained in the mixed gas to a target value, for example, 2, is given by the equation (2).
(0.16 + 0.56x) / (0.48 + 0.07x) = 2 (2)
x = 80/42 ≒ 2.
Therefore, for example, the amount of the hydrogen-rich by-product gas supplied from the H ₂ -rich by-product gas supply device 20 to the mixing device 30 is converted into the biomass-derived gasification supplied from the CO-rich gasification gas supply device 10 to the mixing device 30. When the amount of the gas is doubled and mixed by the mixing device 30, the gasified gas derived from the biomass and the hydrogen-rich by-product gas can be used without waste.
In the above example, the volume ratio of the biomass-derived gasified gas and the hydrogen-rich by-product gas in the standard state is determined by the ratio of the carbon monoxide contained in the biomass-derived gasified gas and the hydrogen-rich by-product gas (48% And 7%) and the proportions of hydrogen (16% and 56%) and the target value (2).
As a result, the mixed gas obtained by mixing the gasified gas containing at least the biomass-derived gasified gas rich in carbon monoxide with the hydrogen-rich by-product gas has a high hydrogen content, thereby producing a low-carbon FT synthetic oil. It is possible to improve the yield of syngas production suitable for the above.

The hydrogen separation device 40 is connected to the mixing device 30 and separates the supplied first mixed gas into hydrogen and a first off-gas. The hydrogen separation device 40 may use a known pressure fluctuation adsorption method (PSA: Pressure Swing Adsorption), a hydrogen separation polymer membrane, a hydrogen separation metal membrane, a cryogenic separation method, or the like.

The carbon monoxide separator 50 is connected to the hydrogen separator 40 and separates the supplied first off-gas into carbon monoxide and a second off-gas. The carbon monoxide separation device 30 may use a known pressure fluctuation adsorption method (PSA), a carbon monoxide separation polymer membrane, a carbon monoxide separation metal membrane, a cryogenic separation method, or the like.

The preparation device 60 is connected to the hydrogen separation device 40 and the carbon monoxide separation device 50, and has the same temperature as the capacity of hydrogen supplied from the hydrogen separation device 40 and the carbon monoxide supplied from the carbon monoxide separation device 50, Each is measured at the same pressure, and is adjusted so that the capacity of hydrogen with respect to the capacity of carbon monoxide becomes a target value. Thereby, the hydrogen separated by the hydrogen separation device 40 and the carbon monoxide separated by the carbon monoxide separation device 50 are prepared so that the molar ratio of hydrogen to carbon monoxide becomes a target value, and becomes a synthesis gas. .

オフ The offgas utilization device 3 is connected to the carbon monoxide separation device 50, and uses the second offgas supplied from the carbon monoxide gas separation device 50 as fuel. The off-gas utilization device 3 is a boiler combustion furnace or the like.

2. The actuating CO rich gas of the gas supply apparatus 10 of the first embodiment, the gasification gas containing carbon monoxide-rich least from biomass gasification gas supplied to the mixing device 30, H ₂ rich product gas supply device 20 The hydrogen-rich by-product gas is supplied to the mixing device 30. The mixing device 30 mixes a gasification gas containing at least a biomass-derived gasification gas and a hydrogen-rich by-product gas to generate a first mixed gas, and supplies the first mixed gas to the hydrogen separation device 40. The hydrogen separator 40 separates the supplied first mixed gas into hydrogen and a first off-gas, and supplies the first off-gas to the carbon monoxide separator 50 and the hydrogen to the blender 60. The carbon monoxide separator 50 separates the supplied first off-gas into carbon monoxide and a second off-gas, and supplies the carbon monoxide to the blender 60. The blending device 60 blends the supplied hydrogen and carbon monoxide such that the molar ratio of hydrogen to carbon monoxide becomes a target value, and makes the synthesis gas suitable for the production of low carbon FT synthetic oil.

The FT synthetic oil production device 2 generates FT synthetic oil from the synthesis gas supplied from the low-carbon FT synthetic oil production synthesis gas production system 1. The offgas utilization device 3 uses the combustion heat by burning the supplied second offgas. Thereby, two types of fuel gas can be used effectively.

3. Effects of First Embodiment According to the synthesis gas production system 1 for producing low-carbon FT synthetic oil according to the first embodiment, at least biomass-derived gasified gas rich in carbon monoxide, which is two types of fuel gas, is included. The volume ratio of the gasified gas and the hydrogen-rich by-product gas in the standard state is defined as the ratio of carbon monoxide and the ratio of hydrogen contained in the two types of fuel gas, and the ratio of hydrogen to carbon monoxide in the synthesis gas to be produced. Since the value set based on the target value of the molar ratio is used, the two types of fuel gas can be used without waste. Furthermore, the amounts of the two types of fuel gas do not increase more than necessary, and it is possible to prevent an increase in the size of the system itself, particularly the hydrogen separation device and the carbon monoxide separation device, and an increase in installation costs and running costs. . In addition, since the production of gasified gas containing at least the biomass-derived gasified gas involves a small amount of carbon dioxide emission, it is possible to reduce the carbon dioxide emission and produce a synthesis gas for producing low carbon FT synthetic oil.

4. Configuration of Second Embodiment In the second embodiment, as shown in FIG. 2, a hydrogen separation device 40 is connected between the H ₂ rich by-product gas supply device 20 and the mixing device 30, and the mixing device 30 point that is directly connected to a carbon monoxide separator 50, and CO-rich gas of gasification gas and H ₂ rich product gas supply system comprising at least from biomass gasification gas supplied to the mixer 30 from the gas supply apparatus 10 20 The volume ratio in a standard state with the hydrogen-rich by-product gas supplied to the hydrogen separation device 40 from the gaseous gas containing at least the biomass-derived gasification gas and the monoxide contained in the hydrogen-rich by-product gas The first embodiment differs from the first embodiment in that the ratio is set based on the ratio of carbon, the ratio of hydrogen contained in the hydrogen-rich by-product gas, and the target value. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The H ₂ -rich by-product gas supply device 20 is connected to the hydrogen separation device 40, and supplies the hydrogen-rich by-product gas to the hydrogen separation device 40. The hydrogen separation device 40 is connected to the mixing device 60, supplies the separated hydrogen to the mixing device 60, and supplies the third off-gas to the mixing device 30. The CO-rich gasification gas supply device 10 is connected to the mixing device 30 and supplies the gasification gas containing at least a biomass-derived gasification gas rich in carbon monoxide to the mixing device 30. The mixing device 30 mixes the gasified gas containing at least the biomass-derived gasified gas and the third off-gas into a second mixed gas, and supplies the second mixed gas to the carbon monoxide separation device 50.

The second mixed gas contains at least hydrogen contained in the gasified gas containing the biomass-derived gasified gas, and the hydrogen contained in the second mixed gas is contained in the fourth offgas from the carbon monoxide separation device 50 and is contained in the offgas. It is sent to the utilization device 3 and is not supplied to the blending device 60. Therefore, the gasification gas containing at least the biomass-derived gasification gas and the carbon monoxide contained in the hydrogen-rich by-product gas are supplied to the blender 60, but are contained in the gasification gas containing at least the biomass-derived gasification gas. The supplied hydrogen is not supplied to the blender 60. Therefore, the amount of the gasified gas containing at least the biomass-derived gasified gas and the amount of the hydrogen-rich by-product gas supplied as the two types of fuel gas are such that the volume ratio under the standard condition is at least the gasification containing the biomass-derived gasified gas. It is set to be a value set based on the ratio of carbon monoxide contained in the gas and the hydrogen-rich by-product gas, the ratio of hydrogen contained in the hydrogen-rich by-product gas, and the target value. .
For example, when a biomass-derived gasified gas and a hydrogen-rich by-product gas having the same composition as the above-described compositions are used as the two types of fuel gas, the capacity ratio of hydrogen to carbon monoxide contained in the second mixed gas is set to a target value, for example, 2 Assuming that the capacity x of the biomass-derived gasified gas is 1, from the equation (3),
(0.56x) / (0.48 + 0.07x) = 2 (3)
x = 96/42 ≒ 2.3.
Therefore, for example, the amount of the hydrogen-rich by-product gas supplied from the H ₂ -rich by-product gas supply device 20 to the hydrogen separation device 40 is changed to the biomass-derived gas supplied from the CO-rich gasification gas supply device 10 to the mixing device 30. When the amount of the gasification gas is 2.3 times, the gasification gas derived from biomass and the hydrogen-rich by-product gas can be used without waste.

5. Effects of the Second Embodiment In the second embodiment, in addition to the effects of the first embodiment, since only the hydrogen-rich by-product gas is supplied to the hydrogen separation device 40, the hydrogen separation device can be downsized. In addition, installation costs and running costs can be reduced.

6. Configuration of Third Embodiment In the third embodiment, as shown in FIG. 3, a carbon monoxide separation device 50 is connected between a CO-rich gasified gas supply device 10 and a mixing device 30 and a hydrogen separation device 40 And a gaseous gas containing at least the biomass-derived gasified gas and an H ₂ rich by-product gas supplied from the CO-rich gasified gas supply device 10 to the carbon monoxide separation device 50. The volume ratio of the hydrogen-rich by-product gas supplied from the device 20 to the mixing device 30 in a standard state is defined as the ratio of carbon monoxide contained in the gasified gas containing at least the biomass-derived gasified gas, and The first embodiment is set based on the ratio of hydrogen contained in the gasified gas including the derived gasified gas and the hydrogen-rich by-product gas and the target value. And different. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and description thereof is omitted.

The CO-rich gasification gas supply device 10 is connected to the carbon monoxide separation device 50, and supplies the carbon monoxide-rich gasification gas containing at least biomass-derived gasification gas to the carbon monoxide separation device 50. The carbon monoxide separation device 50 supplies the separated carbon monoxide to the preparation device 60, and supplies the fifth off-gas to the mixing device. The mixing device 30 mixes the hydrogen-rich by-product gas supplied from the H ₂ -rich by-product gas supply device 20 with the fifth off-gas to form a third mixed gas, and supplies the third mixed gas to the hydrogen separation device 40. The hydrogen separation device 40 is supplied with the third mixed gas, supplies the separated hydrogen to the preparation device 60, and supplies the sixth off-gas to the off-gas utilization device 4. The offgas utilization device 4 utilizes the combustion heat by burning the supplied sixth offgas. Thereby, two types of fuel gas can be used effectively.

The third mixed gas contains carbon monoxide contained in the hydrogen-rich by-product gas, and the carbon monoxide contained in the third mixed gas is contained in the sixth offgas from the hydrogen separator 40 and the offgas utilization device 4 And is not supplied to the blending device 60. Therefore, the hydrogen contained in the gasification gas containing at least the biomass-derived gasification gas and the hydrogen contained in the hydrogen-rich by-product gas are supplied to the mixing device 60, but the carbon monoxide contained in the hydrogen-rich by-product gas is supplied to the preparation device 60. Not supplied to 60.
Therefore, the amount of the gasified gas containing at least the biomass-derived gasified gas and the amount of the hydrogen-rich by-product gas supplied as the two types of fuel gas are the gasified gas containing at least the biomass-derived gasified gas at the standard volume ratio. And the ratio of hydrogen contained in at least the gasification gas containing the biomass-derived gasification gas and the hydrogen-rich by-product gas, and the value set based on the target value. Set to.
For example, when a biomass-derived gasification gas and a hydrogen-rich by-product gas having the same composition as the above-described compositions are used as two types of fuel gases, the volume ratio of hydrogen to carbon monoxide contained in the synthesis gas is set to a target value, for example, 2. The capacity x of the hydrogen-rich by-product gas is given by the following equation (4), where the capacity of the biomass-derived gasified gas is 1.
(0.16 + 0.56x) / (0.48) = 2 (4)
x = 0.80 / 0.56 ≒ 1.4.
Therefore, for example, the amount of the hydrogen-rich by-product gas supplied from the H ₂ -rich by-product gas supply device 20 to the mixing device 30 is converted into the amount of the biomass supplied from the CO-rich gasification gas supply device 10 to the carbon monoxide separation device 50. When the amount of the derived gasified gas is 1.4 times, the biomass-derived gasified gas and the hydrogen-rich by-product gas can be used without waste.

7. Effects of Third Embodiment In the third embodiment, in addition to the effects of the first embodiment, since only the gasified gas containing at least the biomass-derived gasified gas is supplied to the carbon monoxide separation device 50, In addition, the carbon monoxide separation device 50 can be downsized, and the installation cost and running cost can be reduced.

8. Configuration of Fourth Embodiment The fourth embodiment is different from the first embodiment in that a gasified gas containing at least a biomass-derived gasified gas and hydrogen are used as two types of fuel gas as shown in FIG. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and the description will be made focusing on this difference. In this case, hydrogen is a fuel gas that can provide hydrogen, and its composition is 100% hydrogen.

The hydrogen supply device 25 is connected to the mixing device 60 and supplies hydrogen to the mixing device 60. The hydrogen supplied from the hydrogen supply device 25 may be a mixture of one or more of soda electrolytic hydrogen, water electrolytic hydrogen, natural gas reformed hydrogen, biogas reformed hydrogen, and CO ₂ -free hydrogen. The carbon monoxide separation device 50 separates carbon monoxide from the gasified gas containing at least the biomass-derived gasified gas rich in carbon monoxide supplied from the CO-rich gasified gas supply device 10, and supplies the separated gas to the blending device 60. The seventh off-gas is supplied to the off-gas utilization device 3. The mixing device 60 mixes the hydrogen supplied from the hydrogen supply device 25 and the carbon monoxide supplied from the carbon monoxide separation device 50 such that the molar ratio of hydrogen to carbon monoxide becomes a target value, and synthesizes the synthesis gas. To

The amount of the gasified gas containing at least the biomass-derived gasified gas and the amount of the hydrogen gas supplied as the two types of fuel gas are such that the volume ratio under standard conditions is at least one of the monoxide contained in the gasified gas containing the biomass-derived gasified gas. The value is set to be a value set based on the ratio of carbon, the ratio of hydrogen contained in hydrogen supplied as fuel gas, and the target value.
For example, when the biomass-derived gasification gas and hydrogen having the same composition as described above are used, and the volume of the biomass-derived gasification gas is 1, the volume ratio of hydrogen to carbon monoxide contained in the mixed gas is set to a target value, for example, 2. From equation (5), the capacity x of hydrogen for
x / 0.48 = 2 (5)
x = 0.48 × 2 = 0.96.
Therefore, for example, the amount of hydrogen supplied from the hydrogen supply device 25 to the blending device 60 is substantially the same as the amount of biomass-derived gasification gas supplied from the CO-rich gasification gas supply device 10 to the carbon monoxide separation device 50. Then, the biomass-derived gasified gas and hydrogen can be used without waste.

9. Effects of Fourth Embodiment In the fourth embodiment, in addition to the effects of the first embodiment, since only the gasified gas containing at least the biomass-derived gasified gas is supplied to the carbon monoxide separation device 50, Since the carbon monoxide separator 50 can be reduced in size and a hydrogen separator is not required, installation costs and running costs can be reduced.

10. Configuration of Fifth Embodiment As shown in FIG. 5, the fifth embodiment is different from the first embodiment in that a gasified gas containing at least a biomass-derived gasified gas and steam are used as two types of fuel gas. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals, and the description will be focused on the differences. In this case, steam is the fuel gas that can provide hydrogen.

The CO-rich gasification gas supply device 10 is connected to the distribution device 70 and supplies the gasification gas containing at least biomass-derived gasification gas rich in carbon monoxide to the distribution device 70. The steam supply device 27 is connected to the carbon monoxide shift device 80 and supplies steam to the carbon monoxide shift device 80. The distribution device 70 is connected to the carbon monoxide separation device 50 and the carbon monoxide conversion device 80, distributes the supplied gasification gas containing at least the biomass-derived gasification gas at a predetermined ratio, and distributes at least the distributed biomass-derived gasification gas. One part of the gasified gas containing the gas is supplied to the carbon monoxide separator 50, and the other part is supplied to the carbon monoxide converter 80. The carbon monoxide separator 50 separates the other part of the supplied gasified gas containing at least the biomass-derived gasified gas into carbon monoxide and an eighth offgas, and supplies the separated carbon monoxide to the blender 60, The eighth off-gas is supplied to the off-gas utilization device 3.

The carbon monoxide conversion device 80 converts the carbon monoxide contained in the other portion of the gasified gas containing at least the biomass-derived gasified gas supplied from the distribution device 70 and the steam supplied from the steam supply device 27 into a catalyst. Exothermic reaction is performed in the presence as shown in the chemical formula (2) to generate a hydrogen-rich modified gas-containing gas composed of hydrogen and carbon dioxide.
CO + H ₂ O → H ₂ + CO ₂ (exothermic reaction) (2)
The carbon monoxide shift device 80 is connected to the hydrogen separator 40 and supplies the generated hydrogen-rich shift gas-containing gas to the hydrogen separator 40. The carbon monoxide converter 80 includes a radiator 81, and radiates heat generated by the exothermic reaction with the radiator 81. The hydrogen separation device 40 is connected to the mixing device 60 and the off-gas utilization device 4, supplies the separated hydrogen to the preparation device 60, and supplies the ninth off-gas to the off-gas utilization device 4. When the off-

gas utilization devices

3 and 4 are boiler combustion furnaces and the steam generated by the boilers is supplied to the steam supply device 27, the generation of carbon dioxide can be suppressed. In addition, the exhaust heat of the FT synthesis (exothermic reaction) in the FT synthetic oil production device 2 and the exhaust heat in the CO-rich gasified gas supply device 10 can be used.

The amount of the gasified gas containing at least the biomass-derived gasified gas and the amount of water vapor supplied as the two types of fuel gas are such that the volume ratio under standard conditions is at least the carbon monoxide contained in the gasified gas containing the biomass-derived gasified gas. And the ratio of hydrogen, the distribution ratio p of the other part to the one part of the gasified gas containing the biomass-derived gasified gas distributed by the distribution device 70, and the value set based on the target value. Set as follows. For example, the distribution ratio p is calculated when the target value is set to 2 using a biomass-derived gasified gas and water vapor having the same composition as the above-described compositions as the two types of fuel gas. The amount of carbon monoxide supplied from the distributor 70 to the carbon monoxide converter 80 and the amount of steam supplied from the steam supply device 27 are the same from the chemical formula (2). Assuming that the volume of the biomass-derived gasification gas supplied from the CO-rich gasification gas supply device 10 is 1, the amount of carbon monoxide supplied from the carbon monoxide separation device 50 to the blending device 60 is [0.48 × 1 / (1 + p)], and the amount of hydrogen supplied from the hydrogen separator 40 to the blender 60 is the amount of hydrogen converted from carbon monoxide contained in the other part of the biomass-derived gasified gas [0.48 × p / (1 + p)] and the amount of hydrogen contained in the other part [0.16 × p / (1 + p)]. Therefore, the distribution ratio p is given by the following equation (5).
[0.48 × p / (1 + p) + 0.16 × p / (1 + p)] / [0.48 × 1 / (1 + p)] = 2 (5)
p = 0.96 / 0.64 = 1.5.
Thereby, for example, the biomass-derived gasification gas supplied from the CO-rich gasification gas supply device 10 is distributed by the distribution device 70 such that the distribution ratio of the other portion to one portion becomes 1.5, and the steam supply device 80 The amount of water vapor converted to the standard state supplied to the carbon monoxide conversion device 80 from p / (1 + p) = 0.6 times the amount of biomass-derived gasified gas supplied from the CO-rich gasified gas supply device 10 Then, the biomass-derived gasified gas and steam can be used without waste.

11. Effects of Fifth Embodiment In the fifth embodiment, in addition to the effects of the first embodiment, since only the gasified gas containing at least the biomass-derived gasified gas is supplied to the carbon monoxide separation device 50, Since the carbon monoxide separation device 50 can be downsized, installation costs and running costs can be reduced. Furthermore, since both types of fuel gas emit a small amount of carbon dioxide gas, it is possible to produce a low-carbon FT synthetic oil-producing synthetic gas with extremely reduced carbon dioxide gas emissions.

12. Configuration of Sixth Embodiment In the sixth embodiment, as shown in FIG. 6, the mixing device 30 is connected to the carbon monoxide separation device 50 in place of the off-gas utilization device 3, and the mixing device 30 is converted to carbon monoxide. Only the point of connection between the device 80 and the hydrogen separation device 40 is different from that of the fifth embodiment, and only the differences will be described.

The carbon monoxide separation device 50 separates carbon monoxide from one portion of the gasified gas containing at least the biomass-derived gasified gas rich in carbon monoxide supplied from the distribution device 70, and mixes the separated carbon monoxide. 60, and the eighth off-gas is supplied to the mixing device 30. The mixing device 30 mixes the conversion gas-containing gas supplied from the carbon monoxide conversion device 80 with the eighth off-gas supplied from the carbon monoxide separation device 50 to generate a fourth mixed gas, and generates a fourth mixed gas. To supply. The hydrogen separator 40 separates hydrogen from the fourth mixed gas and supplies it to the blender 60, and supplies the tenth offgas to the offgas utilization device 4.

In the sixth embodiment, the distribution ratio p by the distribution device 70 is calculated, for example, in the case where the biomass-derived gasified gas and the steam having the same composition as the above-mentioned compositions are used as the two types of fuel gas and the target value is 2. Assuming that the amount of the biomass-derived gasified gas is 1, the amount of carbon monoxide contained in one portion of the biomass-derived gasified gas distributed by the distribution device 70 is 0.48 × 1 / (1 + p). It is separated by the carbon oxide separating device 50 and supplied to the blending device 60. The amount of hydrogen contained in one portion is 0.16 × p / (1 + p), and is supplied to the mixing device 30 while being contained in the eighth off-gas. The amount of carbon monoxide contained in the other portion of the biomass-derived gasified gas distributed by the distribution device 70 is 0.48 × p / (1 + p), and is converted by the carbon monoxide conversion device 80 to the same amount of steam. It reacts to become a hydrogen-rich modified gas-containing gas containing the same amount of hydrogen. Since the metamorphic gas-containing gas contains hydrogen contained in the other part of the biomass-derived gasified gas, the fourth mixed gas obtained by mixing the eighth off-gas and the metamorphic gas-containing gas contains [0.16 + 0.48 × p / (1 + p)], which is separated by the hydrogen separator 40 and supplied to the blender 60. Therefore, the distribution ratio p is given by the following equation (5).
[0.16 + 0.48 × p / (1 + p)] / [0.48 × 1 / (1 + p)] = 2 (5)
p = 0.80 / 0.64 = 1.25.
Thereby, for example, the biomass-derived gasification gas supplied from the CO-rich gasification gas supply device 10 is distributed by the distribution device 70 so that the distribution ratio of the other portion to one portion becomes 1.25, and the gasification gas is supplied from the steam supply device 27. The amount of steam converted to the standard state supplied to the carbon monoxide shifter 80 is increased to p / (1 + p) = 0.56 times the amount of the biomass-derived gasification gas supplied from the CO-rich gasification gas supply device 10. Then, the biomass-derived gasified gas and steam can be used without waste.

11. Effects of the Sixth Embodiment In the sixth embodiment, in addition to the effects of the fifth embodiment, at least all of carbon and hydrogen contained in the gasified gas including the biomass-derived gasified gas are used for producing synthesis gas. Can be used.

12. Configuration of Seventh Embodiment The seventh embodiment is different from the fourth embodiment in that a carbon monoxide-rich by-product gas and carbon dioxide-free hydrogen are used as two types of fuel gas, as shown in FIG. Therefore, the same components as those of the fourth embodiment are denoted by the same reference numerals, and the description will be made focusing on this difference. In this case, carbon dioxide-free hydrogen is a fuel gas that can provide hydrogen, and its composition is 100% hydrogen.
Carbon dioxide-free hydrogen is hydrogen produced by reducing the amount of carbon dioxide gas emitted, and is one or more of hydrogen derived from coal gasification gas with CCS, water electrolysis hydrogen using renewable power, hydrogen derived from biomass, and nuclear hydrogen. A mixture of a plurality of types may be used. Hydrogen derived from coal gasification gas with CCS is hydrogen generated by separating hydrogen from coal gasification gas produced by a coal gasification gas apparatus with CCS (Carbon-Dioxide Capture and Storage). Water electrolyzed hydrogen using renewable power is hydrogen generated by electrolyzing water using power obtained by solar power generation, wind power generation, geothermal power generation, wave power generation, tidal power generation, and the like. Biomass-derived hydrogen is hydrogen produced by reforming biogas obtained by methane fermentation or hydrogen produced by a shift reaction of carbon monoxide of biomass gasified gas. Nuclear hydrogen includes hydrogen generated by the electrolysis of water with nuclear power, and hydrogen generated by the thermochemical decomposition of water by reactor heat.
As the by-product gas rich in carbon monoxide, a converter gas, a blast furnace gas, or the like having a large carbon dioxide emission coefficient is used. Converter gas is a by-product gas generated in the iron refining process in the converter, and contains about 70% of carbon monoxide. Blast furnace gas is a by-product gas generated when pig iron is produced by reducing iron ore in a blast furnace and contains about 25% of carbon monoxide.

The CO-rich by-product gas supply device 15 is connected to the carbon monoxide separation device 50, and supplies a carbon monoxide-rich by-product gas having a high carbon monoxide content (ratio) to the carbon monoxide separation device 50. The carbon monoxide separation device 50 separates carbon monoxide from the carbon monoxide rich by-product gas supplied from the CO-rich by-product gas supply device 15 and supplies the separated carbon monoxide to the blending device 60, and uses the eleventh off-gas as an off-gas utilization device. Supply 3 The eleventh off-gas may be rendered harmless by flare treatment and discharged to the outside. The carbon dioxide-free hydrogen supply device 29 is connected to the mixing device 60, and supplies the carbon dioxide-free hydrogen to the mixing device 60.

The amount of the carbon monoxide-rich by-product gas and the amount of the carbon dioxide-free hydrogen gas supplied as the two types of fuel gas are the same as in the fourth embodiment. Are set to values set based on the ratio of carbon monoxide contained in the hydrogen gas, the ratio of hydrogen contained in carbon dioxide-free hydrogen as fuel gas, and the target value.

13. Effects of the Seventh Embodiment In the seventh embodiment, in addition to the effects of the first embodiment, since only the carbon monoxide rich by-product gas is supplied to the carbon monoxide separation device 50, The size of the carbon separation device 50 can be reduced. Furthermore, since a hydrogen separation device is not required, installation costs and running costs can be reduced. In that a carbon monoxide-rich by-product gas is used in place of the gasification gas containing at least the biomass-derived gasification gas rich in carbon monoxide as one fuel gas, the carbon dioxide gas emission is larger than in the first embodiment. Since carbon dioxide-free hydrogen is used as the other fuel gas, carbon dioxide emission can be reduced, and a synthetic gas for producing low-carbon FT synthetic oil can be produced.

1: Synthetic gas production system for producing low carbon FT synthetic oil, 2: FT synthetic oil production device, 3, 4: Off-gas utilization device, 10: CO-rich gasified gas supply device, 15: CO-rich by-product gas supply device, 20 : H ₂ rich by-product gas supply device, 25: hydrogen supply device, 27: steam supply device, 29: carbon dioxide free hydrogen supply device, 30: mixing device, 40: hydrogen separation device, 50: carbon monoxide separation device, 60: blending device, 70: distribution device, 80: carbon monoxide conversion device

Claims

CO-rich gasification gas supply device for supplying a gasification gas containing at least biomass-derived gasification gas rich in carbon monoxide,
An H 2 -rich by-product gas supply device for supplying a hydrogen-rich by-product gas,
The CO-rich gases from said supply device gasification gas containing at least from biomass gasification gas is supplied, the H 2 the hydrogen-rich product gas from a rich byproduct gas supply device is supplied, at least the biomass-derived gases A mixing device for mixing a gasified gas containing a chemical gas and the hydrogen-rich by-product gas to form a first mixed gas;
A hydrogen separation device that supplies the first mixed gas from the mixing device and separates the first mixed gas into hydrogen and a first off-gas;
The first offgas is supplied from the hydrogen separator, and the carbon monoxide separator separates the first offgas into carbon monoxide and a second offgas;
The separated hydrogen is supplied from the hydrogen separator, the separated carbon monoxide is supplied from the carbon monoxide separator, and the separated hydrogen and the separated carbon monoxide are converted into carbon monoxide. A blending device that blends the molar ratio of hydrogen with respect to the target value to obtain a synthesis gas,
The mixing device, the gasification gas containing at least the biomass-derived gasification gas and the hydrogen-rich by-product gas, the volume ratio in a standard state, the gasification gas containing at least the biomass-derived gasification gas and the hydrogen Mixing the proportion of carbon monoxide and the proportion of hydrogen contained in the rich by-product gas to a value that is set based on the target value,
Synthetic gas production system for low carbon FT synthetic oil production.
CO-rich gasification gas supply device for supplying a gasification gas containing at least biomass-derived gasification gas rich in carbon monoxide,
An H 2 -rich by-product gas supply device for supplying a hydrogen-rich by-product gas,
A hydrogen separator connected to the H 2 -rich by-product gas supply device and separating the hydrogen-rich by-product gas into hydrogen and a third off-gas;
A gasification gas containing at least the biomass-derived gasification gas is supplied from the CO-rich gasification gas supply device, the third offgas is supplied from the hydrogen separation device, and a gasification gas containing the at least biomass-derived gasification gas. A mixing device for mixing the third off-gas to form a second mixed gas;
The second mixed gas is supplied from the mixing device, and a carbon monoxide separating device that separates the second mixed gas into carbon monoxide and a fourth off-gas;
The separated hydrogen is supplied from the hydrogen separator, the separated carbon monoxide is supplied from the carbon monoxide separator, and the separated carbon monoxide and the separated hydrogen are converted into carbon monoxide. A blending device that blends the molar ratio of hydrogen with respect to the target value to obtain a synthesis gas,
Of the hydrogen-rich supplied to the hydrogen separator from the H 2 rich product gas supply device and the gasification gas containing at least from biomass gasification gas supplied to the mixing apparatus from the CO-rich reduction gas supply device The volume ratio in the standard state with the by-product gas, the ratio of carbon monoxide contained in the gasification gas containing at least the biomass-derived gasification gas and the hydrogen-rich by-product gas, and the hydrogen-rich by-product gas Set based on the ratio of hydrogen contained in and the target value,
Synthetic gas production system for low carbon FT synthetic oil production.
CO-rich gasification gas supply device for supplying a gasification gas containing at least biomass-derived gasification gas rich in carbon monoxide,
An H 2 -rich by-product gas supply device for supplying a hydrogen-rich by-product gas,
A carbon monoxide separation device connected to the CO-rich gasification gas supply device and separating a gasification gas containing at least the biomass-derived gasification gas into carbon monoxide and a fifth offgas;
The H 2 the hydrogen-rich product gas from a rich byproduct gas supply device is supplied, the said fifth off-gas from the carbon monoxide separation unit is supplied with the hydrogen-rich by-product gas and said fifth off-gas A mixing device for mixing into a third mixed gas,
A hydrogen separation device supplied with the third mixed gas from the mixing device, and separating the third mixed gas into hydrogen and a sixth off-gas;
The separated hydrogen is supplied from the hydrogen separator, the separated carbon monoxide is supplied from the carbon monoxide separator, and the separated carbon monoxide and the separated hydrogen are converted into carbon monoxide. A blending device that blends the molar ratio of hydrogen with respect to the target value to obtain a synthesis gas,
The hydrogen supplied from the H 2 rich product gas supply device and the gasification gas containing at least from biomass gasification gas supplied to the carbon monoxide separation unit from said CO-rich gas of the gas supply apparatus to the mixing apparatus The volume ratio in a standard state with a rich by-product gas, the ratio of carbon monoxide contained in the gasified gas containing at least the biomass-derived gasified gas, and the gasified gas containing the at least the biomass-derived gasified gas and Set based on the ratio of hydrogen contained in the hydrogen-rich by-product gas and the target value,
Synthetic gas production system for low carbon FT synthetic oil production.
CO-rich gasification gas supply device for supplying a gasification gas containing at least biomass-derived gasification gas rich in carbon monoxide,
A hydrogen supply device for supplying hydrogen as fuel gas,
A gasification gas containing at least the biomass-derived gasification gas is supplied from the CO-rich gasification gas supply device, and the gasification gas containing the at least the biomass-derived gasification gas is separated into carbon monoxide and a seventh offgas. A carbon separation device,
The hydrogen is supplied from the hydrogen supply device, the separated carbon monoxide is supplied from the carbon monoxide separation device, and the separated carbon monoxide and the hydrogen have a molar ratio of hydrogen to carbon monoxide. A blending device that blends to a target value to produce synthesis gas,
In a standard state of the gasification gas containing at least the biomass-derived gasification gas supplied from the CO-rich gasification gas supply device to the carbon monoxide separation device and the hydrogen supplied to the blending device from the hydrogen supply device. The capacity ratio is set based on the ratio of carbon monoxide contained in the gasified gas containing at least the biomass-derived gasified gas, the ratio of hydrogen contained in hydrogen as the fuel gas, and the target value,
Synthetic gas production system for low carbon FT synthetic oil production.
CO-rich gasification gas supply device for supplying a gasification gas containing at least biomass-derived gasification gas rich in carbon monoxide,
A steam supply device for supplying steam,
A distributor that distributes the gasified gas containing at least the biomass-derived gasified gas supplied from the CO-rich gasified gas supply device to one part and the other part at a predetermined ratio;
One part of the gasification gas containing at least the biomass-derived gasification gas is supplied, and carbon monoxide separation for separating one part of the gasification gas containing the at least the biomass-derived gasification gas into carbon monoxide and an eighth offgas Equipment and
The steam is supplied from the steam supply device, the other portion of the gasification gas containing at least the biomass-derived gasification gas is supplied from the distribution device, the gasification gas containing the steam and the at least biomass-derived gasification gas A carbon monoxide shifter for generating a hydrogen-rich shift gas-containing gas by a shift reaction with the other part;
A hydrogen separator connected to the carbon monoxide shifter and separating the shift gas-containing gas into hydrogen and a ninth off-gas;
The separated hydrogen is supplied from the hydrogen separator, the separated carbon monoxide is supplied from the carbon monoxide separator, and the separated carbon monoxide and the separated hydrogen are converted into carbon monoxide. A blending device that blends the molar ratio of hydrogen with respect to the target value to obtain a synthesis gas,
In a standard state of the gasified gas containing at least the biomass-derived gasified gas supplied from the CO-rich gasified gas supply device to the distribution device and the steam supplied to the carbon monoxide conversion device from the steam supply device. The volume ratio is set based on the ratio of carbon monoxide and the ratio of hydrogen contained in the gasified gas containing at least the biomass-derived gasified gas, and the target value,
Synthetic gas production system for low carbon FT synthetic oil production.
CO-rich gasification gas supply device for supplying a gasification gas containing at least biomass-derived gasification gas rich in carbon monoxide,
A steam supply device for supplying steam,
A distributor that distributes the gasified gas containing at least the biomass-derived gasified gas supplied from the CO-rich gasified gas supply device to one part and the other part at a predetermined ratio;
One part of the gasification gas containing at least the biomass-derived gasification gas is supplied from the distribution device, and one part of the gasification gas containing the at least the biomass-derived gasification gas is separated into carbon monoxide and an eighth offgas. A carbon monoxide separation device,
The steam is supplied from the steam supply device, the other portion of the gasification gas containing at least the biomass-derived gasification gas is supplied from the distribution device, and the steam and the gasification gas containing the at least biomass-derived gasification gas A carbon monoxide shifter for generating a hydrogen-rich shift gas-containing gas by a shift reaction with the other part;
The shift gas-containing gas is supplied from the carbon monoxide shift device, the eighth offgas is supplied from the carbon monoxide separation device, and the shift gas-containing gas and the eighth offgas are mixed to form a fourth mixed gas. A mixing device,
A hydrogen separation device connected to the mixing device and separating the fourth mixed gas into hydrogen and a tenth off-gas;
The separated hydrogen is supplied from the hydrogen separator, the separated carbon monoxide is supplied from the carbon monoxide separator, and the separated carbon monoxide and the separated hydrogen are converted into carbon monoxide. A blending device that blends the molar ratio of hydrogen with respect to the target value to obtain a synthesis gas,
In a standard state of the gasified gas containing at least the biomass-derived gasified gas supplied from the CO-rich gasified gas supply device to the distribution device and the steam supplied to the carbon monoxide conversion device from the steam supply device. The volume ratio is set based on the ratio of carbon monoxide and the ratio of hydrogen contained in the gasified gas containing at least the biomass-derived gasified gas, and the target value,
Synthetic gas production system for low carbon FT synthetic oil production.
A CO-rich by-product gas supply device for supplying a carbon monoxide-rich by-product gas,
A carbon dioxide-free hydrogen supply device that supplies carbon dioxide-free hydrogen as fuel gas,
The carbon monoxide-rich by-product gas is supplied from the CO-rich by-product gas supply device, and a carbon monoxide separation device that separates the carbon monoxide-rich by-product gas into carbon monoxide and an eleventh off-gas,
The carbon dioxide-free hydrogen is supplied from the carbon dioxide-free hydrogen supply device, the separated carbon monoxide is supplied from the carbon monoxide separation device, and the separated carbon monoxide and the carbon dioxide-free hydrogen are separated from each other. A blending device for blending so that the molar ratio of hydrogen to carbon monoxide becomes a target value to obtain a synthesis gas,
The carbon monoxide-rich by-product gas supplied from the CO-rich by-product gas supply device to the carbon monoxide separation device and the carbon dioxide-free hydrogen supplied to the blending device from the carbon dioxide-free hydrogen supply device; The capacity ratio in the standard state is set based on the ratio of carbon monoxide contained in the carbon monoxide-rich by-product gas and the target value of hydrogen contained in hydrogen as fuel gas.
Synthetic gas production system for low carbon FT synthetic oil production.