CN106829861A - A kind of method that waste coke-stove gas self-heating partial oxidation produces synthesis gas - Google Patents
A kind of method that waste coke-stove gas self-heating partial oxidation produces synthesis gas Download PDFInfo
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- CN106829861A CN106829861A CN201710046249.XA CN201710046249A CN106829861A CN 106829861 A CN106829861 A CN 106829861A CN 201710046249 A CN201710046249 A CN 201710046249A CN 106829861 A CN106829861 A CN 106829861A
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- gas
- coke
- waste
- synthesis gas
- stove
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/36—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents using oxygen or mixtures containing oxygen as gasifying agents
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B3/00—Hydrogen; Gaseous mixtures containing hydrogen; Separation of hydrogen from mixtures containing it; Purification of hydrogen
- C01B3/02—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen
- C01B3/32—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air
- C01B3/34—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents
- C01B3/48—Production of hydrogen or of gaseous mixtures containing a substantial proportion of hydrogen by reaction of gaseous or liquid organic compounds with gasifying agents, e.g. water, carbon dioxide, air by reaction of hydrocarbons with gasifying agents followed by reaction of water vapour with carbon monoxide
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- 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
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0805—Methods of heating the process for making hydrogen or synthesis gas
- C01B2203/0811—Methods of heating the process for making hydrogen or synthesis gas by combustion of fuel
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/08—Methods of heating or cooling
- C01B2203/0872—Methods of cooling
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B2203/00—Integrated processes for the production of hydrogen or synthesis gas
- C01B2203/12—Feeding the process for making hydrogen or synthesis gas
- C01B2203/1205—Composition of the feed
- C01B2203/1211—Organic compounds or organic mixtures used in the process for making hydrogen or synthesis gas
- C01B2203/1235—Hydrocarbons
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
- Y02P20/129—Energy recovery, e.g. by cogeneration, H2recovery or pressure recovery turbines
Abstract
The present invention relates to a kind of method that waste coke-stove gas self-heating partial oxidation produces synthesis gas, methane, coal tar, benzene, naphthalene in high temperature famine coke-stove gas etc. can be converted into effective gas carbon monoxide and hydrogen.The present invention has technological process simple, the advantage of energy-conserving and environment-protective.
Description
Technical field
The invention belongs to a kind of method for producing synthesis gas, specifically, it is related to a kind of self-heating non-catalytic partial oxidation
Method, the method can be the byproduct of coke oven famine converting coke oven gas into synthesis gas.
Background technology
Synthesis gas main component of the invention is hydrogen and carbon monoxide, the gas such as also a small amount of carbon dioxide, extensively
For producing various chemical products such as methyl alcohol, liquefied ammonia, ethylene glycol.
Waste coke-stove gas refers to the high temperature for just leaving coke oven(About 700~800 DEG C)Contain coal tar, benzene, naphthalene, ammonia, sulphur
The multi-component coal gas such as compound, methane, hydrogen, carbon monoxide, carbon dioxide, vapor.
It is industrial at this stage that typically first the coal tar in waste coke-stove gas, benzene, ammonia, naphthalene, sulfide etc. are produced by changing
Reclaim separate after, then with contain methane clean coke-stove gas producing synthesis gas.
Coke-oven plant Hua Chan workshops exist as follows when separating the components such as above-mentioned coal tar, benzene, ammonia by physics and chemical method
Problem:
(1)Because recovery of chemical products need to be carried out at normal temperatures, so, the high temperature heat of waste coke-stove gas is not utilized, and is relied on the contrary
A large amount of water are cooled down, and cause the waste on the energy.
(2)Waste coke-stove gas contains substantial amounts of high-temperature vapor and is condensed also with ammoniacal liquor and liquefied, not utilized, also results in
Very big energy waste.
(3)When said components are reclaimed in recovery of chemical products workshop, there will be the toxic gases such as a small amount of gaseous hydrocarbon, benzene to discharge, also steam
Ammonia waste water, wash-out benzene waste water, tar slag, washing oil slag these waste discharges, increase the difficulty of three-protection design.
The content of the invention
The purpose of the present invention, is to provide a kind of waste coke-stove gas by self-heating partial oxidation reforming come producing synthesis gas
Method.
The famine oven gas of the high temperature containing a large amount of vapor of coke oven is just left, the bar of a part of water vapour is allocated into supplement
Under part, directly carry out normal pressure non-catalytic partial oxidation with oxygen in reburner and carry out producing synthesis gas, technical process is simple, energy-conservation
Environmental protection, realizes the harmonious development of economy, environment, the energy.
The technical process of producing synthesis gas of the present invention, comprises the following steps:
(1)700 ~ 800 DEG C of waste coke-stove gas are extracted by pipeline from coke oven top discharge.
(2)Waste coke-stove gas is introduced directly into on-catalytic reburner while hot, while oxygen(Containing O2 99.6%)And useless pot
Some vapor is respectively fed to reburner.In the leading portion of reburner, there is the combustion reaction of hydro carbons.These hydrocarbon include coal tar, benzene,
The hydrocarbons such as naphthalene, methane, use CmHnRepresent:
CmHn+ ﹙ m+n/4﹚ O2=mCO2+n/2H2O
Using unburnt reaction heat, the method for transformation that remaining hydrocarbon will be absorbed heat with water vapour:
CmHn+ m H2O=mCO+ ﹙n/2+ m ﹚ H2
In superincumbent course of reaction, also there is the cracking reaction of hydrocarbon:
CmHn=﹙ m-n/4﹚ C+n/4CH4
CH4=C+2H2
CO, H after the reaction2、CO2、H2Between the various components of O, there is following reaction:
CO+H2O=CO2+ H2
The high temperature of non-catalytic partial oxidation is interval about 1100 ~ 1450 DEG C, and above-mentioned reaction is completed certainly by not needing external heat
Hot type balanced reaction, 1000 ~ 1200 DEG C of reacted conversion gas, mainly containing H2 62~65%, containing CO 25~28%, containing CO2 7
~7.5% (percentage by volume).Organic sulfur in waste coke-stove gas is converted into inorganic sulfur H in reburner2S。
(3)Contain a small amount of carbon black in conversion gas, separated by separator, as being sold outside carbon black products.
(4)Pyrolytic conversion gas enters reforming gas boiler, and saturated vapor is produced using the high temperature for converting gas, and the saturation is steamed
A vapour part enters reburner, adjusts conversion reaction, and excess steam is sent out out-of-bounds.Conversion gas cools to 400 DEG C or so and leaves used heat
Boiler.
(5)The conversion gas for leaving waste heat boiler goes feedwater preheater to lower the temperature, heating boiler feed water, and conversion gas is down to
200 DEG C or so.
(6)Conversion gas after lowering the temperature through feedwater preheater enters water cooler, is cooled further to normal temperature, then conduct
Synthesis gas is sent out out-of-bounds.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Claims (11)
1. a kind of use chemical mode waste converting coke oven gas into synthesis gas method, it is characterised in that comprise the following steps:
(1) the discharge by pipeline from the top of coke oven extracts waste coke-stove gas.
2. the high temperature famine coke-stove gas for just leaving coke oven is (2) sent to reburner, while oxygen(Oxygen-containing 99.6%)And water steams
Gas is also fed into reburner, carries out not needing the self-heating partial oxidation reaction of external heat in reburner.
3. produce and contain a large amount of H2And the conversion gas of 1000~1200 DEG C of the temperature of CO.
4. the organic sulfur in waste coke-stove gas changes into inorganic sulfur H at high temperature2S。
5. (3) conversion gas separates the carbon black for wherein occurring by high temperature resistant separator.
6. (4) pyrolytic conversion gas cools to 400 DEG C or so into waste heat boiler, produces saturated vapor.
7. the conversion gas for (5) leaving waste heat boiler cools to 200 DEG C or so by feedwater preheater.
8. the conversion gas after (6) cooling down sends out boundary after water cooler is further cooled to normal temperature and separates condensed water as synthesis gas
Outward.
9. H is mainly contained in synthesis gas2 62~65%, containing CO 25~28%, containing CO2 7~7.5%(Percentage by volume).
10. the method that partial oxidation as claimed in claim 1 produces synthesis gas, it is characterised in that described waste coke-stove gas is
From coke oven out contain CH4、H2、CO、CO2、N2, vapor, coal tar, benzene, naphthalene, ammonia, the high temperature coke oven coal of sulfide
Gas.
The method that 11. partial oxidations according to claim 1 produce synthesis gas, is a thermally equilibrated conversion side of self-heating
Method, it is not necessary to which external heat source is heated, it is not required that catalyst.
Priority Applications (1)
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CN201710046249.XA CN106829861A (en) | 2017-01-22 | 2017-01-22 | A kind of method that waste coke-stove gas self-heating partial oxidation produces synthesis gas |
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CN201710046249.XA CN106829861A (en) | 2017-01-22 | 2017-01-22 | A kind of method that waste coke-stove gas self-heating partial oxidation produces synthesis gas |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109485016A (en) * | 2019-01-17 | 2019-03-19 | 河北科技大学 | A kind of system and method for the direct steam reformation hydrogen making of coal oven dithio-gas or ammonia |
CN113845942A (en) * | 2021-11-30 | 2021-12-28 | 华泰永创(北京)科技股份有限公司 | Coking and flue gas treatment system and method |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101368010A (en) * | 2008-09-25 | 2009-02-18 | 曲靖市众一煤化有限公司 | Method for producing semi-reinforcing hydrocarbon black, methanol, liquid ammonia with coke oven gas |
CN102923657A (en) * | 2012-11-16 | 2013-02-13 | 华东理工大学 | Method capable of recovering heat and used for producing synthesis gas through oxidation of non-catalytic part of gaseous hydrocarbon |
-
2017
- 2017-01-22 CN CN201710046249.XA patent/CN106829861A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101368010A (en) * | 2008-09-25 | 2009-02-18 | 曲靖市众一煤化有限公司 | Method for producing semi-reinforcing hydrocarbon black, methanol, liquid ammonia with coke oven gas |
CN102923657A (en) * | 2012-11-16 | 2013-02-13 | 华东理工大学 | Method capable of recovering heat and used for producing synthesis gas through oxidation of non-catalytic part of gaseous hydrocarbon |
Non-Patent Citations (1)
Title |
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杜明杰 等: "焦炉气常压非催化转化制合成气技术的应用", 《中氮肥》 * |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109485016A (en) * | 2019-01-17 | 2019-03-19 | 河北科技大学 | A kind of system and method for the direct steam reformation hydrogen making of coal oven dithio-gas or ammonia |
CN113845942A (en) * | 2021-11-30 | 2021-12-28 | 华泰永创(北京)科技股份有限公司 | Coking and flue gas treatment system and method |
CN113845942B (en) * | 2021-11-30 | 2022-02-18 | 华泰永创(北京)科技股份有限公司 | Coking and flue gas treatment system and method |
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