CN108865285A - It is a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art - Google Patents
It is a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art Download PDFInfo
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- C10G2/30—Production of liquid hydrocarbon mixtures of undefined composition from oxides of carbon from carbon monoxide with hydrogen
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- C10G7/00—Distillation of hydrocarbon oils
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- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
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- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/02—Processes for making hydrogen or synthesis gas
- C01B2203/0205—Processes for making hydrogen or synthesis gas containing a reforming step
- C01B2203/0211—Processes for making hydrogen or synthesis gas containing a reforming step containing a non-catalytic reforming step
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- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0913—Carbonaceous raw material
- C10J2300/093—Coal
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- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0959—Oxygen
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- C10J—PRODUCTION OF PRODUCER GAS, WATER-GAS, SYNTHESIS GAS FROM SOLID CARBONACEOUS MATERIAL, OR MIXTURES CONTAINING THESE GASES; CARBURETTING AIR OR OTHER GASES
- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
- C10J2300/0953—Gasifying agents
- C10J2300/0973—Water
- C10J2300/0976—Water as steam
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
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- C10J2300/00—Details of gasification processes
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Abstract
The invention discloses a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art, belongs to coal chemical industry and gas chemical industry field.The present invention is using coal and natural gas as raw material, synthesis gas obtained by coal partial gasification and gas renormalizing is mixed, adjusting hydrogen-carbon ratio is 2 or so, the temperature of synthesis gas is first reduced through heat exchange unit, sour gas is removed through washing unit again, it is finally re-fed into fischer-tropsch reactor and prepares synthetic oil, be isolated to gasoline products.Wherein, heat needed for gas renormalizing is provided by residual coal combustion, to realize the coupling of internal system heat；And the extra energy of system is then used to produce electric power.Best hydrogen-carbon ratio needed for the present invention realizes synthetic oil production from source, it eliminates necessary hydrogen-carbon ratio in single raw material technology and adjusts unit, conventional synthesis oil tech is reduced to the dependence of single raw materials market, it is simple with process flow, equipment investment is few, operating flexibility is strong, the pollution-free and high feature of production capacity.
Description
Technical field
The invention belongs to coal chemical industry and gas chemical industry fields, and in particular to a kind of using coal and natural gas as raw material
Oil-Electricity Federation production. art.
Background technique
With the high speed development of national economy, China constantly increases the demand of petroleum, but since China's oil is stored up
Standby deficiency, petroleum resources are unable to satisfy the demand of national economy, so that the import dependence of petroleum is increased, so that the energy is pacified
Full problem becomes to get worse, while also limiting the sustainable development of national economy.So exploitation is cleaned, is efficient and advanced
Oil product synthetic technology realizes the adjustment of the industrial structure and the protection of ecological environment, becomes the important topic studied at present.
The method of existing production synthetic oil relates generally to the two kinds of technologies i.e. coal system synthesis gentle synthetic oil skill processed of oil tech
Art.Such as《Modern chemical industry》In in May, 2018 the 5th phase " China's Modern Coal-based Chemical industry Situation and Policy Summary " text of volume 38,
Disclosed technology is：The coal dust after processing, middle pressure steam and oxygen are sent to gasification furnace first, gasification reaction is carried out and hydrogen is made
Crude synthesis gas of the carbon ratio less than 2, the hydrogen-carbon ratio that synthesis gas is adjusted by water gas shift reation is about 2, then by washing unit
Relevant sour gas is removed, synthetic oil finally is made by Fischer-Tropsch synthesis.The technology produce synthetic oil the shortcomings that be：
(1) the complete gasification process technical difficulty of coal dust is big, and energy consumption is high；(2) hydrogen-carbon ratio of the crude synthesis gas produced is not met less than 2
The optimal proportion of Fischer-Tropsch synthesis gas need to increase the hydrogen-carbon ratio that water gas shift reation adjusts synthesis gas；(3) in water-gas shift
Unit, needs to be additionally provided middle pressure steam, and energy consumption is bigger；(4) CO2 emissions of the technique are larger, are unfavorable for
Environmental protection.For another example《Chemical Manufacture and technology》The 4th phase of volume 19 in 2012, " coal, gas, oily co-producing methanol realized that resource is mutual
In a benefit and energy-saving and emission-reduction " text, disclosed technology is：It is carried out firstly, natural gas and middle pressure steam are sent to reforming reactor
The crude synthesis gas that hydrogen-carbon ratio is greater than 2 is made in steam reforming reaction, and the heat absorbed required for the reaction is by remaining natural gas
Burning provides；The hydrogen-carbon ratio of synthesis gas is down to 2 or so through inverse water gas shift reation by crude synthesis gas, then de- by washing unit
Finally synthetic oil is made by Fischer-Tropsch synthesis in relevant sour gas out.The shortcomings that technology is：(1) in synthesis gas
Production phase, the natural gas heat supply for needing to burn additional, production efficiency are low；(2) hydrogen-carbon ratio of the crude synthesis gas produced is greater than 2,
The optimal proportion of Fischer-Tropsch synthesis gas is not met, the hydrogen-carbon ratio that inverse water gas shift reation adjusts synthesis gas need to be increased；(3) exist
In inverse water gas shift reation unit process, needing the higher carbon dioxide of purity is raw material, has increase accordingly cost of investment.
Summary of the invention
The purpose of the present invention is being directed to the shortcoming of existing synthetic oil technology of preparing, providing one kind with coal and natural gas is
The oil of raw material-Electricity Federation production. art.The present invention is using coal and natural gas as raw material, by adjusting coal partial gasification unit and natural gas
The operating condition of reformer unit, so that two bursts of mixed hydrogen-carbon ratios of synthesis gas reach the best hydrogen carbon suitable for F- T synthesis
Than then preparing synthetic oil by Fischer-Tropsch synthesis；Meanwhile using unvaporized residual coal combustion, methane reforming reaction is provided
Required heat realizes the heat coupling of internal system.In addition, it is anti-that the partial gas phase product of Fischer-Tropsch reaction is recycled to Fischer-Tropsch again
Device is answered, the conversion ratio of Fischer-Tropsch reaction is promoted, and another part gaseous products are then used for combustion power generation, to improve the energy benefit of system
With rate.Best hydrogen-carbon ratio needed for the technology realizes synthetic oil production from source, eliminating must in single raw material technology
The hydrogen-carbon ratio needed adjusts unit, reduces conventional synthesis oil tech to the dependence of single raw materials market, has process flow letter
Single, equipment investment is few, and operating flexibility is strong, the pollution-free and high feature of production capacity.
The present invention is achieved by the following technical solutions：It is a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art,
Synthesis gas obtained by coal dust partial gasification and gas renormalizing is mixed, adjusting hydrogen-carbon ratio is 2 or so, is first dropped through heat exchange unit
The temperature of low synthesis gas, then sour gas is removed through washing unit, it is finally re-fed into fischer-tropsch reactor and prepares synthetic oil.Wherein,
Residual coal after coal dust partial gasification is mainly used for burning, heat needed for providing gas renormalizing, realizes internal system heat
Coupling；And the extra energy of system then passes through smoke gas turbine and steam turbine production electric power is used to meet the electric power need of internal system
It asks.Specific step is as follows for it：
(1) coal partial gasification unit
To the coal dust after the processing of certain enterprise, elemental analysis group becomes：C content 72.04%, H content 4.08%, O contains
Amount 7.36%, N content 1.67%, S content are 0.65%, remaining constituent content 0.01%, and content of ashes 14.19% is low
Position calorific value is 27.80MJ/kg, is sent into gasification furnace with the flow rate that inlet amount is 3~8kg/s, the temperature of gasification furnace is 920.6~
976.9 DEG C, pressure 29bar.Meanwhile by temperature be 520 DEG C, the oxygen that the middle pressure steam and pressure that pressure is 30bar are 30bar
Gas is passed through gasification furnace as gasifying agent and carries out coal gasification reaction, wherein vapor and the molar ratio of the phosphorus content in coal dust are：
0.1~0.4, oxygen and with the molar ratio of the phosphorus content in coal dust be：0.18~0.25；The crude synthesis gas temperature of generation is
920.6~976.9 DEG C, pressure 29bar, the molar ratio of hydrogen and carbon monoxide is less than 2；Unvaporized residual coal carries out next
Step processing.
(2) residual coal combustion unit
After the completion of (1) step, residual coal unvaporized in (1) step gasification furnace is sent into combustion chamber, meanwhile, it is passed through air,
It is 1000 DEG C in temperature, under the operating condition of normal pressure, carries out combustion reaction, the heat needed for reacting in next step is provided；Temperature is
1000 DEG C of flue gas enters residual neat recovering system.
(3) methane reforming reaction unit
Natural gas after the processing of certain enterprise, consisting of:Methane content is 94.40%, ethane content 3.1%,
Propane content 0.5%, nitrogen content 1.1%, the content of remaining gas are 0.9%.With the flow rate of 0.1kmol/s, the pressure of 30bar
Power is sent into reactor through pipeline and carries out methane reforming reaction.In the case where pressure is the operating condition of 29bar, residual coal combustion is utilized
Heat maintaining reaction temperature is 724.6~949.7 DEG C, and generation pressure is 29bar, the thick synthesis that temperature is 724.6~949.7 DEG C
Gas, wherein the ratio of hydrogen and carbon monoxide is greater than 2.
(4) waste heat recovery unit
After the completion of (1), (2) and (3) step, synthesis gas and (2) step that (1) and (3) step generate are generated
Flue gas is sent into residual neat recovering system and generates high temperature and high pressure steam, the steam of generation be used to meet internal process production requirement and
Power generation；Flue gas direct emission after heat exchange；It is cooled to 110~120 DEG C of synthesis gas, mixer is sent into and carries out at next step
Reason；
(5) mixed cell
After the completion of (4) step, by the synthesis gas after the cooling of (4) step, it is sent into mixed cell and is sufficiently mixed, make to mix
The molar ratio of hydrogen and carbon monoxide afterwards reaches 1.7~2.7, and mixed gas is sent into washing unit and is carried out at next step
Reason.
(6) clean unit
After the completion of (5) step, by the mixed synthesis gas of (5) step, it is sent into clean unit and removes sour gas, Toxic
Matter and water；Purified synthesis gas enters to be handled in next step.
(7) F- T synthesis
After the completion of (6) step, the purified synthesis gas of (6) step is sent into fischer-tropsch reactor, is 250 DEG C in temperature, pressure
Under conditions of power is 25bar, carries out Fischer-Tropsch synthesis and obtain crude product.Obtained crude product enters to be handled in next step.
(8) rectifying separative unit
After the completion of (7) step, synthetic oil prepared by (7) step, after the separation of crude oil rectifying column, tower top obtains gas phase
Light hydrocarbon product, product section circulation system to fischer-tropsch reactor entrance, another part are produced as byproduct；Vapour is obtained in the middle part of tower
The quality of oil, the gasoline reaches 95.2~96.5%, can be used as product and directly produces；Tower bottom obtains the mixing of the heavy constituents such as paraffin
Object can be used as byproduct extraction.
This programme after the above technical solution is adopted, mainly has the following effects：
(1) this technique improves the utilization rates of energy, improve the energy figure of coal.This technology invents the coal dust being related to
Gasification unit is partial gasification, and unvaporized residual coal can be used for burning and provide the heat of methane reforming unit.The part of coal dust
Gasification reduces the difficulty of coal gasification, improves the utilization rate of energy.The capacity usage ratio of the technology is increased to 48.6~
52.5%, wherein oil-producing efficiency is 25~34.9%, and efficiency of fuel cell generation is 17.6~23.6%.
(2) technology realizes the substance coupling and heat coupling of internal system.The present invention program is related to coal and first
Alkane is the synthesis gas that raw material produces suitable hydrogen-carbon ratio, avoids and produces water-gas shift unit necessary to synthesis gas with single raw material
Or vapour converter unit, the substance for realizing synthesis gas production workshop section couple against the current, reduce conventional synthesis oil tech to single original
Expect the dependence in market；Meanwhile using heat needed for unvaporized residual coal combustion offer methane reforming unit, system is realized
Internal heat coupling.
(3) technology improves the conversion ratio and capacity usage ratio of synthesis gas by Fischer-Tropsch gas phase circulation.The present invention program
It is related to the partial gas phase logistics of Fischer-Tropsch synthesis being recycled back to fischer-tropsch reactor, to improve the conversion ratio and energy of synthesis gas
Measure utilization rate.
(4) technology realizes oil-Electricity Federation and produces.This technology scheme of the invention is relative to traditional natural gas oil-producing technique and day
The per unit area yield technique of right gas electricity production, energy conservation rate reach 3.4~9.4%.
Case study on implementation 1
It is a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art, specific step is as follows：
(1) coal partial gasification unit
To the coal dust after the processing of certain enterprise, elemental analysis group becomes：C content 72.04%, H content 4.08%, O contains
Amount 7.36%, N content 1.67%, S content are 0.65%, remaining constituent content 0.01%, and content of ashes 14.19% is low
Position calorific value is 27.80MJ/kg, and the flow rate with inlet amount for 3kg/s is sent into gasification furnace, and the temperature of gasification furnace is 976.9 DEG C, pressure
Power is 29bar.Meanwhile by temperature being 520 DEG C, oxygen that the middle pressure steam and pressure that pressure is 30bar are 30bar is as gasification
Agent is passed through gasification furnace and carries out coal gasification reaction, wherein vapor and the molar ratio of the phosphorus content in coal dust are：0.1, oxygen and with
The molar ratio of phosphorus content in coal dust is：0.18；The crude synthesis gas temperature of generation be 976.9 DEG C, pressure 29bar, hydrogen and
The molar ratio of carbon monoxide is less than 2；Unvaporized residual coal is further processed.
(2) residual coal combustion unit
After the completion of (1) step, residual coal unvaporized in (1) step gasification furnace is sent into combustion chamber, meanwhile, it is passed through air,
It is 1000 DEG C in temperature, under the operating condition of normal pressure, carries out combustion reaction, the heat needed for reacting in next step is provided；Temperature is
1000 DEG C of flue gas enters residual neat recovering system.
(3) methane reforming reaction unit
Natural gas after the processing of certain enterprise, consisting of:Methane content is 94.40%, ethane content 3.1%,
Propane content 0.5%, nitrogen content 1.1%, the content of remaining gas are 0.9%.With the flow rate of 0.1kmol/s, the pressure of 30bar
Power is sent into reactor through pipeline and carries out methane reforming reaction.In the case where pressure is the operating condition of 29bar, residual coal combustion is utilized
Heat maintaining reaction temperature is 770.9 DEG C, and generations pressure is 29bar, and temperature is 770.9 DEG C of crude synthesis gas, wherein hydrogen with
The ratio of carbon monoxide is greater than 2.
(4) waste heat recovery unit
After the completion of (1), (2) and (3) step, synthesis gas and (2) step that (1) and (3) step generate are generated
Flue gas is sent into residual neat recovering system and generates high temperature and high pressure steam, the steam of generation be used to meet internal process production requirement and
Power generation, the flue gas direct emission after heat exchange；It is cooled to 110 DEG C of synthesis gas, mixer is sent into and is further processed；The skill
The capacity usage ratio of art is increased to 49.0%, wherein oil-producing efficiency is 25.4%, efficiency of fuel cell generation 23.6%.
(5) mixed cell
After the completion of (4) step, by the synthesis gas after the cooling of (4) step, it is sent into mixed cell and is sufficiently mixed, make to mix
The molar ratio of hydrogen and carbon monoxide afterwards reaches 2.7, and mixed gas is sent into washing unit and is further processed.
(6) clean unit
After the completion of (5) step, by the mixed synthesis gas of (5) step, it is sent into clean unit and removes sour gas, Toxic
Matter and water；Purified synthesis gas enters to be handled in next step.
(7) F- T synthesis
After the completion of (6) step, the purified synthesis gas of (6) step is sent into fischer-tropsch reactor, is 250 DEG C in temperature, pressure
Under conditions of power is 25bar, carries out Fischer-Tropsch synthesis and obtain crude product.Obtained crude product enters to be handled in next step.
(8) rectifying separative unit
After the completion of (7) step, synthetic oil prepared by (7) step, after the separation of crude oil rectifying column, tower top obtains gas phase
Light hydrocarbon product product section circulation system to fischer-tropsch reactor entrance, another part is produced as byproduct；Vapour is obtained in the middle part of tower
The quality of oil, the gasoline reaches 956%, can be used as product and directly produces；Tower bottom obtains the heavy constituents mixture such as paraffin, can make
For byproduct extraction.The per unit area yield technique that the technology is produced electricity relative to traditional natural gas oil-producing technique and natural gas, energy section
About rate reaches 4.2%.
Case study on implementation 2
It is a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art specific steps, with case study on implementation 1, wherein：
In (1) step, coal dust is that the flow rate with inlet amount for 5kg/s is sent into gasification furnace, and the temperature of gasification furnace is 975.0
DEG C, pressure 29bar.Meanwhile by temperature being 520 DEG C, oxygen that the middle pressure steam and pressure that pressure is 30bar are 30bar is made
Gasification furnace is passed through for gasifying agent and carries out coal gasification reaction, wherein vapor and the molar ratio of the phosphorus content in coal dust are：0.12,
Oxygen and with the molar ratio of the phosphorus content in coal dust it is：0.2；The crude synthesis gas temperature of generation is 975 DEG C, pressure 29bar, hydrogen
The molar ratio of gas and carbon monoxide is less than 2；Unvaporized residual coal is further processed.
In (2) step, residual coal unvaporized in (1) step gasification furnace is sent into combustion chamber, meanwhile, it is passed through air, in temperature
Degree is 1000 DEG C, under the operating condition of normal pressure, carries out combustion reaction, provides the heat needed for reacting in next step；Temperature is 1000
DEG C flue gas enter residual neat recovering system.
In (3) step, the natural gas group after the processing of certain enterprise becomes:Methane content is 94.40%, and ethane content is
3.1%, propane content 0.5%, nitrogen content 1.1%, the content of remaining gas is 0.9%.With the flow rate of 0.1kmol/s,
The pressure of 30bar is sent into reactor through pipeline and carries out methane reforming reaction.In the case where pressure is the operating condition of 29bar, utilization is residual
The heat maintaining reaction temperature of coal combustion is 949.7 DEG C, and generations pressure is 29bar, and temperature is 949.7 DEG C of crude synthesis gas,
In, the ratio of hydrogen and carbon monoxide is greater than 2.
In (4) step, the synthesis gas that (1) and (3) step generate and the flue gas that (2) step generates are sent into waste heat and returned
Receipts system generates high temperature and high pressure steam, and the steam of generation is used to meet production requirement and the power generation of internal process, the cigarette after heat exchange
Road gas direct emission；It is cooled to 112 DEG C of synthesis gas, mixer is sent into and is further processed；The capacity usage ratio of the technology
It is increased to 52.5%, wherein oil-producing efficiency is 34.9%, efficiency of fuel cell generation 17.6%.
In (5) step, by the synthesis gas after the cooling of (4) step, it is sent into mixed cell and is sufficiently mixed, made mixed
The molar ratio of hydrogen and carbon monoxide reaches 2.0, and mixed gas is sent into washing unit and is further processed.
In (6) step, by the mixed synthesis gas of (5) step, be sent into clean unit removing sour gas, noxious material and
Water；Purified synthesis gas enters to be handled in next step.
In (7) step, the purified synthesis gas of (6) step is sent into fischer-tropsch reactor, is 250 DEG C in temperature, pressure is
Under conditions of 25bar, carries out Fischer-Tropsch synthesis and obtain crude product.Obtained crude product enters to be handled in next step.
In (8) step, the quality of obtained gasoline reaches 95.2%, can be used as product and directly produces.The technology is opposite
In the per unit area yield technique that traditional natural gas oil-producing technique and natural gas produce electricity, energy conservation rate reaches 9.4%.
Case study on implementation 3
It is a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art specific steps, with case study on implementation 1, wherein：
In (1) step, coal dust is that the flow rate with inlet amount for 8kg/s is sent into gasification furnace, and the temperature of gasification furnace is 920.6
DEG C, pressure 29bar.Meanwhile by temperature being 520 DEG C, oxygen that the middle pressure steam and pressure that pressure is 30bar are 30bar is made
Gasification furnace is passed through for gasifying agent and carries out coal gasification reaction, wherein vapor and the molar ratio of the phosphorus content in coal dust are：0.4, oxygen
Gas and with the molar ratio of the phosphorus content in coal dust it is：0.25；The crude synthesis gas temperature of generation is 920.6 DEG C, pressure 29bar,
The molar ratio of hydrogen and carbon monoxide is less than 2；Unvaporized residual coal is further processed.
In (2) step, residual coal unvaporized in (1) step gasification furnace is sent into combustion chamber, meanwhile, it is passed through air, in temperature
Degree is 1000 DEG C, under the operating condition of normal pressure, carries out combustion reaction, provides the heat needed for reacting in next step；Temperature is 1000
DEG C flue gas enter residual neat recovering system.
In (3) step, the natural gas group after the processing of certain enterprise becomes:Methane content is 94.40%, and ethane content is
3.1%, propane content 0.5%, nitrogen content 1.1%, the content of remaining gas is 0.9%.With the flow rate of 0.1kmol/s,
The pressure of 30bar is sent into reactor through pipeline and carries out methane reforming reaction.In the case where pressure is the operating condition of 29bar, utilization is residual
The heat maintaining reaction temperature of coal combustion is 724.6 DEG C, and generations pressure is 29bar, and temperature is 724.6 DEG C of crude synthesis gas,
In, the ratio of hydrogen and carbon monoxide is greater than 2.
In (4) step, the synthesis gas that (1) and (3) step generate and the flue gas that (2) step generates are sent into waste heat and returned
Receipts system generates high temperature and high pressure steam, and the steam of generation is used to meet production requirement and the power generation of internal process, the cigarette after heat exchange
Road gas direct emission；It is cooled to 120 DEG C of synthesis gas, mixer is sent into and is further processed；The capacity usage ratio of the technology
It is increased to 48.6%, wherein oil-producing efficiency is 25.0%, efficiency of fuel cell generation 23.6%.
In (5) step, by the synthesis gas after the cooling of (4) step, it is sent into mixed cell and is sufficiently mixed, made mixed
The molar ratio of hydrogen and carbon monoxide reaches 1.7, and mixed gas is sent into washing unit and is further processed.
In (6) step, by the mixed synthesis gas of (5) step, be sent into clean unit removing sour gas, noxious material and
Water；Purified synthesis gas enters to be handled in next step.
In (7) step, the purified synthesis gas of (6) step is sent into fischer-tropsch reactor, is 250 DEG C in temperature, pressure is
Under conditions of 25bar, carries out Fischer-Tropsch synthesis and obtain crude product.Obtained crude product enters to be handled in next step.
In (8) step, the quality of obtained gasoline reaches 96.5%, can be used as product and directly produces.The technology is opposite
In the per unit area yield technique that traditional natural gas oil-producing technique and natural gas produce electricity, energy conservation rate reaches 3.4%.
Above-mentioned case study on implementation of the invention is only example to illustrate the invention, and is not to reality of the invention
Apply the restriction of mode.For those of ordinary skill in the art, other can also be made on the basis of the above description
Various forms of variations and variation.Here all embodiments can not be exhaustive.It is all to belong to technical side of the invention
Case changes and variations that derived from are still in the scope of protection of the present invention.
Claims (5)
1. a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art, which is characterized in that, will using coal and natural gas as raw material
The mixing of synthesis gas obtained by coal dust partial gasification and gas renormalizing, adjusting hydrogen-carbon ratio is 2 or so, is first reduced through heat exchange unit
The temperature of synthesis gas, then sour gas is removed through washing unit, it is finally re-fed into fischer-tropsch reactor and prepares synthetic oil, through separating
To gasoline products；Wherein, heat needed for gas renormalizing is mainly provided by residual coal combustion, to realize the coupling of internal system heat
It closes；And the extra energy of system is then used to produce electric power.
2. according to claim 1 a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art, it is characterised in that specific
The step of it is as follows：
(1) coal partial gasification unit
To the coal dust after the processing of certain enterprise, elemental analysis group becomes：C content 72.04%, H content 4.08%, O content
7.36%, N content 1.67%, S content is 0.65%, remaining constituent content 0.01%, content of ashes 14.19%, low level
Calorific value is 27.80MJ/kg, is sent into gasification furnace with the flow rate that inlet amount is 3~8kg/s, the temperature of gasification furnace is 920.6~
976.9 DEG C, pressure 29bar；Meanwhile by temperature be 520 DEG C, the oxygen that the middle pressure steam and pressure that pressure is 30bar are 30bar
Gas is passed through gasification furnace as gasifying agent and carries out coal gasification reaction, wherein vapor and the molar ratio of the phosphorus content in coal dust are：
0.1~0.4, oxygen and with the molar ratio of the phosphorus content in coal dust be：0.18~0.25；The crude synthesis gas temperature of generation is
920.6~976.9 DEG C, pressure 29bar, the molar ratio of hydrogen and carbon monoxide is less than 2；Unvaporized residual coal carries out in next step
Processing；
(2) residual coal combustion unit
After the completion of (1) step, residual coal unvaporized in (1) step gasification furnace is sent into combustion chamber, meanwhile, it is passed through air, in temperature
Degree is 1000 DEG C, under the operating condition of normal pressure, carries out combustion reaction, provides the heat needed for reacting in next step；Temperature is 1000
DEG C flue gas enter residual neat recovering system；
(3) methane reforming reaction unit
Natural gas after the processing of certain enterprise, consisting of:Methane content is 94.40%, ethane content 3.1%, propane
Content 0.5%, nitrogen content 1.1%, the content of remaining gas are 0.9%；With the flow rate of 0.1kmol/s, the pressure of 30bar,
Reactor, which is sent into, through pipeline carries out methane reforming reaction；In the case where pressure is the operating condition of 29bar, the heat of residual coal combustion is utilized
Maintaining reaction temperature is 724.6~949.7 DEG C, and generations pressure is 29bar, and temperature is 724.6~949.7 DEG C of crude synthesis gas,
Wherein, the ratio of hydrogen and carbon monoxide is greater than 2；
(4) waste heat recovery unit
After the completion of (1), (2) and (3) step, by the synthesis gas that (1) and (3) step generate and the flue that (2) step generates
Pneumatic transmission enters residual neat recovering system and generates high temperature and high pressure steam, and the steam of generation is used to meet the production requirement and hair of internal process
Electricity；Flue gas direct emission after heat exchange；It is cooled to 110~120 DEG C of synthesis gas, mixer is sent into and is further processed；
(5) mixed cell
After the completion of (4) step, by the synthesis gas after the cooling of (4) step, it is sent into mixed cell and is sufficiently mixed, made mixed
The molar ratio of hydrogen and carbon monoxide reaches 1.7~2.7, and mixed gas is sent into washing unit and is further processed；
(6) clean unit
After the completion of (5) step, by the mixed synthesis gas of (5) step, be sent into clean unit removing sour gas, noxious material and
Water；Purified synthesis gas enters to be handled in next step；
(7) F- T synthesis
After the completion of (6) step, the purified synthesis gas of (6) step is sent into fischer-tropsch reactor, is 250 DEG C in temperature, pressure is
It under conditions of 25bar, carries out Fischer-Tropsch synthesis and obtains crude product, obtained crude product enters to be handled in next step；
(8) rectifying separative unit
After the completion of (7) step, synthetic oil prepared by (7) step, after the separation of crude oil rectifying column, tower top obtains gas phase lighter hydrocarbons
Product, product section circulation system to fischer-tropsch reactor entrance, another part are produced as byproduct；Gasoline is obtained in the middle part of tower,
It can be used as product directly to produce；Tower bottom obtains the heavy constituents mixture such as paraffin, can be used as byproduct extraction.
3. according to claim 2 a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art, it is characterised in that：
In (1) step, coal dust is that the flow rate with inlet amount for 3kg/s is sent into gasification furnace, and the temperature of gasification furnace is 976.9 DEG C, pressure
Power is 29bar；Meanwhile by temperature being 520 DEG C, oxygen that the middle pressure steam and pressure that pressure is 30bar are 30bar is as gasification
Agent is passed through gasification furnace and carries out coal gasification reaction, wherein vapor and the molar ratio of the phosphorus content in coal dust are：0.1, oxygen and with
The molar ratio of phosphorus content in coal dust is：0.18；The crude synthesis gas temperature of generation be 976.9 DEG C, pressure 29bar, hydrogen and
The molar ratio of carbon monoxide is less than 2；Unvaporized residual coal is further processed；
In (2) step, residual coal unvaporized in (1) step gasification furnace is sent into combustion chamber, meanwhile, it is passed through air, is in temperature
1000 DEG C, under the operating condition of normal pressure, combustion reaction is carried out, the heat needed for reacting in next step is provided；Temperature is 1000 DEG C
Flue gas enters residual neat recovering system；
In (3) step, the natural gas group after the processing of certain enterprise becomes:Methane content is 94.40%, ethane content 3.1%, third
Alkane content 0.5%, nitrogen content 1.1%, the content of remaining gas are 0.9%；With the flow rate of 0.1kmol/s, the pressure of 30bar
Power is sent into reactor through pipeline and carries out methane reforming reaction；In the case where pressure is the operating condition of 29bar, residual coal combustion is utilized
Heat maintaining reaction temperature is 770.9 DEG C, and generations pressure is 29bar, and temperature is 770.9 DEG C of crude synthesis gas, wherein hydrogen with
The ratio of carbon monoxide is greater than 2；
In (4) step, the synthesis gas that (1) and (3) step generate and the flue gas that (2) step generates are sent into waste heat recycling system
System generates high temperature and high pressure steam, and the steam of generation is used to meet production requirement and the power generation of internal process, the flue gas after heat exchange
Direct emission；It is cooled to 110 DEG C of synthesis gas, mixer is sent into and is further processed；
In (5) step, by the synthesis gas after the cooling of (4) step, it is sent into mixed cell and is sufficiently mixed, make mixed hydrogen
Reach 2.7 with the molar ratio of carbon monoxide, mixed gas is sent into washing unit and is further processed；
In (6) step, by the mixed synthesis gas of (5) step, it is sent into clean unit removing sour gas, noxious material and water；
Purified synthesis gas enters to be handled in next step；
In (7) step, the purified synthesis gas of (6) step is sent into fischer-tropsch reactor, is 250 DEG C in temperature, pressure 25bar
Under conditions of, it carries out Fischer-Tropsch synthesis and obtains crude product, obtained crude product enters to be handled in next step；
In (8) step, the quality of obtained gasoline reaches 95.6%, can be used as product and directly produces.
4. according to claim 2 a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art, it is characterised in that：
In (1) step, coal dust is that the flow rate with inlet amount for 5kg/s is sent into gasification furnace, and the temperature of gasification furnace is 975.0 DEG C, pressure
Power is 29bar；Meanwhile by temperature being 520 DEG C, oxygen that the middle pressure steam and pressure that pressure is 30bar are 30bar is as gasification
Agent is passed through gasification furnace and carries out coal gasification reaction, wherein vapor and the molar ratio of the phosphorus content in coal dust are：0.12, oxygen and
Molar ratio with the phosphorus content in coal dust is：0.2；The crude synthesis gas temperature of generation is 975 DEG C, pressure 29bar, hydrogen and one
The molar ratio of carbonoxide is less than 2；Unvaporized residual coal is further processed；
In (2) step, residual coal unvaporized in (1) step gasification furnace is sent into combustion chamber, meanwhile, it is passed through air, is in temperature
1000 DEG C, under the operating condition of normal pressure, combustion reaction is carried out, the heat needed for reacting in next step is provided；Temperature is 1000 DEG C
Flue gas enters residual neat recovering system；
In (3) step, the natural gas group after the processing of certain enterprise becomes:Methane content is 94.40%, ethane content 3.1%, third
Alkane content 0.5%, nitrogen content 1.1%, the content of remaining gas are 0.9%.With the flow rate of 0.1kmol/s, the pressure of 30bar
Power is sent into reactor through pipeline and carries out methane reforming reaction；In the case where pressure is the operating condition of 29bar, residual coal combustion is utilized
Heat maintaining reaction temperature is 949.7 DEG C, and generations pressure is 29bar, and temperature is 949.7 DEG C of crude synthesis gas, wherein hydrogen with
The ratio of carbon monoxide is greater than 2；
In (4) step, the synthesis gas that (1) and (3) step generate and the flue gas that (2) step generates are sent into waste heat recycling system
System generates high temperature and high pressure steam, and the steam of generation is used to meet production requirement and the power generation of internal process, the flue gas after heat exchange
Direct emission；It is cooled to 112 DEG C of synthesis gas, mixer is sent into and is further processed；
In (5) step, by the synthesis gas after the cooling of (4) step, it is sent into mixed cell and is sufficiently mixed, make mixed hydrogen
Reach 2.0 with the molar ratio of carbon monoxide, mixed gas is sent into washing unit and is further processed；
In (6) step, by the mixed synthesis gas of (5) step, it is sent into clean unit removing sour gas, noxious material and water；
Purified synthesis gas enters to be handled in next step；
In (7) step, the purified synthesis gas of (6) step is sent into fischer-tropsch reactor, is 250 DEG C in temperature, pressure 25bar
Under conditions of, it carries out Fischer-Tropsch synthesis and obtains crude product, obtained crude product enters to be handled in next step；
In (8) step, the quality of obtained gasoline reaches 95.2%, can be used as product and directly produces.
5. according to claim 2 a kind of using coal and natural gas as the oil of raw material-Electricity Federation production. art, it is characterised in that：
In (1) step, coal dust is that the flow rate with inlet amount for 8kg/s is sent into gasification furnace, and the temperature of gasification furnace is 920.6 DEG C, pressure
Power is 29bar；Meanwhile by temperature being 520 DEG C, oxygen that the middle pressure steam and pressure that pressure is 30bar are 30bar is as gasification
Agent is passed through gasification furnace and carries out coal gasification reaction, wherein vapor and the molar ratio of the phosphorus content in coal dust are：0.4, oxygen and with
The molar ratio of phosphorus content in coal dust is：0.25；The crude synthesis gas temperature of generation be 920.6 DEG C, pressure 29bar, hydrogen and
The molar ratio of carbon monoxide is less than 2；Unvaporized residual coal is further processed；
In (2) step, residual coal unvaporized in (1) step gasification furnace is sent into combustion chamber, meanwhile, it is passed through air, is in temperature
1000 DEG C, under the operating condition of normal pressure, combustion reaction is carried out, the heat needed for reacting in next step is provided；Temperature is 1000 DEG C
Flue gas enters residual neat recovering system；
In (3) step, the natural gas group after the processing of certain enterprise becomes:Methane content is 94.40%, ethane content 3.1%, third
Alkane content 0.5%, nitrogen content 1.1%, the content of remaining gas are 0.9%；With the flow rate of 0.1kmol/s, the pressure of 30bar
Power is sent into reactor through pipeline and carries out methane reforming reaction；In the case where pressure is the operating condition of 29bar, residual coal combustion is utilized
Heat maintaining reaction temperature is 724.6 DEG C, and generations pressure is 29bar, and temperature is 724.6 DEG C of crude synthesis gas, wherein hydrogen with
The ratio of carbon monoxide is greater than 2；
In (4) step, the synthesis gas that (1) and (3) step generate and the flue gas that (2) step generates are sent into waste heat recycling system
System generates high temperature and high pressure steam, and the steam of generation is used to meet production requirement and the power generation of internal process, the flue gas after heat exchange
Direct emission；It is cooled to 120 DEG C of synthesis gas, mixer is sent into and is further processed；
In (5) step, by the synthesis gas after the cooling of (4) step, it is sent into mixed cell and is sufficiently mixed, make mixed hydrogen
Reach 1.7 with the molar ratio of carbon monoxide, mixed gas is sent into washing unit and is further processed；
In (6) step, by the mixed synthesis gas of (5) step, it is sent into clean unit removing sour gas, noxious material and water；
Purified synthesis gas enters to be handled in next step；
In (7) step, the purified synthesis gas of (6) step is sent into fischer-tropsch reactor, is 250 DEG C in temperature, pressure 25bar
Under conditions of, it carries out Fischer-Tropsch synthesis and obtains crude product, obtained crude product enters to be handled in next step；
In (8) step, the quality of obtained gasoline reaches 96.5%, can be used as product and directly produces.
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