CN1405132A - Process method and system for synthesizing methanel using by-product coal-gas during metallurgical process - Google Patents
Process method and system for synthesizing methanel using by-product coal-gas during metallurgical process Download PDFInfo
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- CN1405132A CN1405132A CN 02148868 CN02148868A CN1405132A CN 1405132 A CN1405132 A CN 1405132A CN 02148868 CN02148868 CN 02148868 CN 02148868 A CN02148868 A CN 02148868A CN 1405132 A CN1405132 A CN 1405132A
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- methanol
- methyl alcohol
- synthetic
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- 238000000034 method Methods 0.000 title claims abstract description 43
- 239000006227 byproduct Substances 0.000 title claims abstract description 38
- 238000010310 metallurgical process Methods 0.000 title claims abstract description 31
- 230000002194 synthesizing effect Effects 0.000 title claims abstract description 24
- 239000003034 coal gas Substances 0.000 title claims description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 claims abstract description 276
- 238000006243 chemical reaction Methods 0.000 claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 10
- 239000000047 product Substances 0.000 claims abstract description 10
- 238000003786 synthesis reaction Methods 0.000 claims abstract description 10
- 238000001816 cooling Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 238000001179 sorption measurement Methods 0.000 claims abstract description 4
- 238000010521 absorption reaction Methods 0.000 claims description 20
- 230000009466 transformation Effects 0.000 claims description 20
- 238000003672 processing method Methods 0.000 claims description 12
- 238000006477 desulfuration reaction Methods 0.000 claims description 11
- 230000023556 desulfurization Effects 0.000 claims description 11
- 239000000203 mixture Substances 0.000 claims description 8
- 238000005262 decarbonization Methods 0.000 claims description 7
- 229910052739 hydrogen Inorganic materials 0.000 claims description 7
- 239000002002 slurry Substances 0.000 claims description 7
- 239000003054 catalyst Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 claims description 6
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 4
- 229910052799 carbon Inorganic materials 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000005864 Sulphur Substances 0.000 claims description 3
- 239000007791 liquid phase Substances 0.000 claims description 3
- 238000005516 engineering process Methods 0.000 claims description 2
- 230000003407 synthetizing effect Effects 0.000 claims 1
- 239000002994 raw material Substances 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract description 4
- 238000010685 alcohol synthesis reaction Methods 0.000 abstract 1
- 230000003009 desulfurizing effect Effects 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 78
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000001257 hydrogen Substances 0.000 description 5
- 238000003723 Smelting Methods 0.000 description 4
- 238000005265 energy consumption Methods 0.000 description 4
- 229910052742 iron Inorganic materials 0.000 description 4
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 3
- 238000005261 decarburization Methods 0.000 description 3
- 238000007599 discharging Methods 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 239000012535 impurity Substances 0.000 description 3
- 238000011946 reduction process Methods 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 235000009508 confectionery Nutrition 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 238000005272 metallurgy Methods 0.000 description 2
- 239000003345 natural gas Substances 0.000 description 2
- 239000012071 phase Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019628 coolness Nutrition 0.000 description 1
- ZBCBWPMODOFKDW-UHFFFAOYSA-N diethanolamine Chemical compound OCCNCCO ZBCBWPMODOFKDW-UHFFFAOYSA-N 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000009955 starching Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
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Abstract
The invention uses the by-product gas product in the course of metallurgical process as raw material for synthesizing methyl alcohol, and adopts the following steps: desulfurizing, decarbonizing, pressure swing adsorption to prepare H2, pressure swing adsorption to prepare CO and after deoxidation making regulation to obtain synthetic gas suitable for synthesizing methyl alcohol, making methyl alcohol synthesis reaction in the methyl alcohol synthesis equipment, and making the gas obtained after reaction undergo the processes of cooling, gas-liquid separation and rectification to obtain reagent-grade methyl alcohol.
Description
Technical field
The invention belongs to methyl alcohol synthetic technology technical field, a kind of processing method and the system that utilizes metallurgical process by-product gas synthesizing methanol that relates in particular to.
Technical background
Iron And Steel Industry is a mainstay of the national economy industry, but needs to consume a large amount of energy pollutent of amplification quantity side by side aborning.Wherein, the process by-product gas (blast furnace gas, coal gas of converter etc.) that by-product is a large amount of, its energy is about 3200MJ/t iron, and energy matter is lower, can not directly be fully used.Therefore, making full use of this process by-product gas is the effective measure that reduce total energy consumption in the metallurgical process and reduce environmental pollution.(US5958107-A when 1999.9.28) utilizing smelting reduction process direct production sponge iron, once proposed to utilize by-product gas through water-gas shift hydrogen manufacturing, as the reducing gas of iron manufacturing process United States Patent (USP).Chinese patent (CN1353201-A, 2002.6.12) once proposed to utilize the smelting reduction process by-product gas to carry out clean electric power generation and Wang Zhiliang etc. at " fused reduction iron-smelting and clean energy chemical industry process for combination producing " (Wang Zhiliang, the big loyalty of holding high up, Wang Jinfu, Diao Jie, Jin Yong. chemical industry progress, the 1st phase of calendar year 2001,13～17 pages) mention the technological thought of Chemicals such as utilizing smelting reduction process by-product gas synthesizing methanol, ammonia, dme.Methyl alcohol is that raw material synthesizes with coal and Sweet natural gas etc. usually, must be through operations such as gas making such as coal and Sweet natural gas, cost height.If metallurgy is combined with methanol synthesizing process, utilize metallurgical process by-product gas synthesizing methanol can more effectively improve energy utilization rate, reduce product energy consumption and production cost greatly, reduce the discharging of objectionable impurities to environment, environmental.
Summary of the invention
The purpose of this invention is to provide a kind of processing method and system that utilizes metallurgical process by-product gas synthesizing methanol,, reduce the discharging of objectionable impurities, environmental requirement to environment to reduce product energy consumption and production cost greatly.
Technical scheme of the present invention is as follows: a kind of processing method of utilizing metallurgical process by-product gas synthesizing methanol, it is characterized in that: the processing method of utilizing metallurgical process by-product gas synthesizing methanol is to be raw material with the metallurgical process by-product gas, makes through processes such as desulfurization, water-gas shift, decarburization, transformation absorption hydrogen manufacturing, transformation absorption system CO, deoxidations to be suitable for starching attitude bed methyl alcohol building-up process with synthetic gas (H
2, CO, CO
2); In methanol synthesizer, under the effect of methanol synthesis catalyst, make it that reaction of synthesizing methanol take place; Reacted gas can obtain reagent-grade methanol behind cooling, gas-liquid separation and methanol rectification, its concrete technical process comprises the steps:
1. processing method of utilizing metallurgical process by-product gas synthesizing methanol, it is characterized in that: this method comprises the steps:
(1). will be rich in the metallurgical process by-product gas of CO, be below the 0.1ppm through desulfurizer desulfurization total content of sulphur to the gas;
(2). the gas after the desulfurization is divided into two-way, and the gas that wherein accounts for 50-80% mixes with remaining gas behind water gas shift reaction, in order to H in the adjustments of gas
2/ CO ratio enters decarbonization device again and removes most of CO
2, CO
2Decreasing ratio is 85～97%;
(3). above-mentioned part is removed CO
2Gas deliver to transformation absorption system H successively
2Device and transformation absorption system CO device extract H wherein respectively
2And CO, the wherein H that is extracted
2Content is at least 90%, the CO content at least 90% that is extracted;
(4). with isolated H
2Mix with CO, deliver to the synthetic gas basin, CO in its synthetic gas
2Content be controlled at 2～10%, make after compressed machine, heat exchanger and device for deoxidizing are handled that methyl alcohol is synthetic uses synthetic gas, send into methanol synthesizer, under the methanol synthesis catalyst effect, carry out the methyl alcohol building-up reactions;
(5). the gas that comes out from methanol synthesizer enters methanol separator after the watercooler cooling, with isolated H
2, CO, CO
2Gas returns compressor and mixes utilization again with fresh synthesis gas, and liquid phase methyl alcohol obtains the reagent-grade methanol product after methanol rectifying system rectifying.
Metallurgical process by-product gas of the present invention can be coal gas of converter or blast furnace gas, mainly consists of 15～60%CO, 10～25%CO
2, 1～5%H
2, 15～60%N
2, 1～3%O
2
Carbon rejection process can adopt wet method carbon rejection processes and pressure swing adsorption decarbonization method in the technical process of the present invention.
In the technical process of the present invention in (4) step methyl alcohol synthetic with H in the synthetic gas
2/ (CO+CO
2) mol ratio is 1～4; 1, CO wherein
2Content is 2～10%.
Methyl alcohol of the present invention is synthetic can to adopt fixed-bed process or slurry attitude bed process.
The present invention also provides a kind of system that realizes above-mentioned processing method, and this system comprises:
(a) desulfurizer that the metallurgical process by-product gas that will be rich in CO carries out desulfurization;
(b) water-gas shift device that links to each other with described desulfurizer;
(c) one is taken off CO
2Device, the inlet of this device is connected with desulfurizer with described water-gas shift device respectively;
(d) transformation absorption system H who links to each other with desulfurizer successively
2Device and a transformation absorption system CO device;
(e) make H with transformation absorption respectively for one
2The device synthetic gas basin that outlet links to each other with a transformation absorption system CO, this synthetic gas basin is connected with a slurry attitude bed methanol synthesizer by compressor, heat exchanger, device for deoxidizing;
(f) methanol separator, the inlet of this separator links to each other with a water cooler, and its pneumatic outlet links to each other with compressor respectively, and liquid exit links to each other with a methanol rectifying system.
The invention has the beneficial effects as follows: utilize the metallurgical process by-product gas to be raw material, make through processes such as desulfurization, water-gas shift, decarburization, transformation absorption hydrogen manufacturing, transformation absorption system CO, deoxidations and be suitable for the methyl alcohol building-up process with synthetic gas (H
2, CO, CO
2); In methanol synthesizer, under the effect of methanol synthesis catalyst, make it that reaction of synthesizing methanol take place; Reacted gas can obtain reagent-grade methanol behind cooling, gas-liquid separation and methanol rectification.It combines metallurgy with methanol synthesizing process, have less investment, can more effectively improve energy utilization rate, reduces product energy consumption and production cost greatly, reduces the discharging of objectionable impurities to environment, and is environmental.
Description of drawings
Fig. 1 is the process flow diagram that utilizes metallurgical process by-product gas synthesizing methanol.
Embodiment
Embodiment 1:
Figure 1 shows that the process flow diagram that utilizes metallurgical process by-product gas synthesizing methanol.Metallurgical process by-product gas 1 as shown in table 1 will be formed, pass through desulfurizer 2 successively, sweetening process adopts wet method and dry desulfurization to unite to carry out, water-gas shift device 3, decarbonization device 4, carbon rejection process adopts the decarburization of diethanolamine wet method, and transformation absorption device for producing hydrogen 5, transformation absorption system CO device 6, synthetic gas basin 7, compressor 8, heat exchanger 9 and device for deoxidizing 10 processes make component synthetic gas (H as shown in table 1
2, CO, CO
2), in methanol synthesizer, under the effect of methanol synthesis catalyst, make it that reaction of synthesizing methanol take place; Reacted gas can obtain reagent-grade methanol behind cooling, gas-liquid separation and methanol rectification.Its technical process is:
1). will be rich in the metallurgical process by-product gas 1 of CO, be below the 0.1ppm through desulfurizer 2 desulfurization total content of sulphur to the gas;
2). the gas after the desulfurization is divided into two-way, and wherein one road gas mixes with remaining gas after water-gas shift device 3 carries out transformationreation, enters decarbonization device 4 again and removes most of CO
2, CO
2Decreasing ratio is 85～97%;
3). remove CO through this part
2Gas deliver to the H that transformation absorption device for producing hydrogen 5 and transformation absorption system CO device 6 extract respectively wherein successively
2And CO;
4). with isolated H
2Mix with CO, deliver to synthetic gas basin 7, be the synthetic synthetic gas of using of methyl alcohol after compressed machine 8, heat exchanger 9, device for deoxidizing 10 are handled, entering slurry attitude bed methanol synthesizer 11, is solvent with the whiteruss, and methanol synthesis catalyst C301 effect down, in 5MPa, 250 ℃, 3000h
-1Under carry out the methyl alcohol building-up reactions;
5). the gas that comes out from slurry attitude bed methanol synthesizer 11 enters methanol separator 13 after watercooler 12 coolings; H in the mixture
2, CO, CO
2Be gas phase still, return compressor 8 and mix utilization again with fresh synthesis gas; Methyl alcohol becomes liquid phase, obtains the reagent-grade methanol product behind methanol rectifying system 14.
Slurry attitude bed methyl alcohol building-up reactions primary product is the methane of methyl alcohol and trace, and the CO per pass conversion can reach 41%, and the methyl alcohol selectivity is greater than 94%.
Embodiment 2:
Basic identical with example 1, difference is that process by-product gas and the synthetic gas after component is regulated thereof are formed difference, and is as shown in table 2.Slurry attitude bed methyl alcohol building-up reactions primary product is the methane of methyl alcohol and trace, and the CO per pass conversion can reach 56.5%, and the methyl alcohol selectivity is greater than 97%.
Embodiment 3:
Basic identical with example 1, difference be process by-product gas and the synthetic gas after component is regulated thereof form different (as shown in table 3) and methyl alcohol synthetic adopt fixed-bed process (reaction conditions is 5MPa, 250 ℃, 10000h
-1).Fixed bed methyl alcohol building-up reactions primary product is the methane of methyl alcohol and trace, and the CO per pass conversion can reach 35%, and the methyl alcohol selectivity is greater than 95%.
Table 1
Gas composition (%)
CO CO
2H
2N
2O
2The synthetic usefulness of metallurgical process by-product gas I 25.0 15.6 2.3 56.0 0.1 methyl alcohol synthetic gas I 32.19 3.22 64.37 0.23-
Table 2
Gas composition (%)
CO CO
2H
2N
2O
2The synthetic usefulness of metallurgical process by-product gas II 50.8 18.0 1.5 29.5 1.2 methyl alcohol synthetic gas II 24.71 0.99 74.13 0.17-
Table 3
Gas composition (%)
CO CO
2H
2N
2O
2The synthetic usefulness of metallurgical process by-product gas III 45.0 20.2 2.0 31.5 1.3 methyl alcohol synthetic gas III 19.54 2.1 78.16 0.2-
Claims (6)
1. processing method of utilizing metallurgical process by-product gas synthesizing methanol, it is characterized in that: this method comprises the steps:
(1). will be rich in the metallurgical process by-product gas of CO, be below the 0.1ppm through desulfurizer desulfurization total content of sulphur to the gas;
(2). the gas after the desulfurization is divided into two-way, and the gas that wherein accounts for 50-80% mixes with remaining gas behind water gas shift reaction, in order to H in the adjustments of gas
2/ CO ratio enters decarbonization device again and removes most of CO
2, CO
2Decreasing ratio is 85～97%:
(3). above-mentioned part is removed CO
2Gas deliver to transformation absorption system H successively
2Device and transformation absorption system CO device extract H wherein respectively
2And CO, the wherein H that is extracted
2Content is at least 90%, the CO content at least 90% that is extracted;
(4). with isolated H
2Mix with CO, deliver to the synthetic gas basin, CO in its synthetic gas
2Content be controlled at 2～10%, make after compressed machine, heat exchanger and device for deoxidizing are handled that methyl alcohol is synthetic uses synthetic gas, send into methanol synthesizer, under the methanol synthesis catalyst effect, carry out the methyl alcohol building-up reactions;
(5). the gas that comes out from methanol synthesizer enters methanol separator after the watercooler cooling, with isolated H
2, CO, CO
2Gas returns compressor and mixes utilization again with fresh synthesis gas, and liquid phase methyl alcohol obtains the reagent-grade methanol product after methanol rectifying system rectifying.
2. according to the described processing method of utilizing metallurgical process by-product gas synthesizing methanol of claim 1, its characteristics are: described metallurgical process by-product gas adopts coal gas of converter or blast furnace gas, mainly consists of 15～60%CO, 10～25%CO
2, 1～5%H
2, 15～60%N
2, 1～3%O
2
3. according to the described processing method of utilizing metallurgical process by-product gas synthesizing methanol of claim 1, its characteristics are: the decarbonization process in the described step (2) can adopt wet method carbon rejection processes or pressure swing adsorption decarbonization method.
4. according to the described processing method of utilizing metallurgical process by-product gas synthesizing methanol of claim 1, its characteristics are: methyl alcohol is synthetic with H in the synthetic gas in described (4) step of technical process
2/ (CO+CO
2) mol ratio is 1～4: 1, CO wherein
2Content is 2～10%.
5. according to the described processing method of utilizing metallurgical process by-product gas synthesizing methanol of claim 1, its characteristics are: described methanol synthesizing process can adopt fixed-bed process or slurry attitude bed process.
6. a realization utilizes the system of metallurgical process by-product gas methanol synthetizing technology method according to claim 1, it is characterized in that this system comprises:
(a) desulfurizer (2) that the metallurgical process by-product gas that will be rich in CO carries out desulfurization;
(b) water-gas shift device (3) that links to each other with described desulfurizer;
(c) one is taken off CO
2Device (4), the inlet of this device is connected with desulfurizer with described water-gas shift device (3) respectively;
(d) transformation absorption system H who links to each other with desulfurizer successively
2Device (5) and a transformation absorption system CO device (6);
(e) make H with transformation absorption respectively for one
2Device (5) the synthetic gas basin (7) that outlet links to each other with a transformation absorption system CO, this synthetic gas basin is connected with a methanol synthesizer (11) by compressor (8), heat exchanger (9), device for deoxidizing (10);
(f) methanol separator (13), the inlet of this separator links to each other with a water cooler (12), and its pneumatic outlet links to each other with compressor respectively, and liquid exit links to each other with a methanol rectifying system (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021488681A CN1166603C (en) | 2002-11-22 | 2002-11-22 | Process method and system for synthesizing methanel using by-product coal-gas during metallurgical process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021488681A CN1166603C (en) | 2002-11-22 | 2002-11-22 | Process method and system for synthesizing methanel using by-product coal-gas during metallurgical process |
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| Publication Number | Publication Date |
|---|---|
| CN1405132A true CN1405132A (en) | 2003-03-26 |
| CN1166603C CN1166603C (en) | 2004-09-15 |
Family
ID=4751564
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|---|---|---|---|
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| CN (1) | CN1166603C (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326821C (en) * | 2004-11-19 | 2007-07-18 | 朱宗林 | Process of coarse methanol from synthetized ammonia |
| CN101624540A (en) * | 2008-07-11 | 2010-01-13 | 李东田 | Process for separately desulfurizing and decarbonizing feed gases for coproduction of ammonia and alcohol |
| CN102191086A (en) * | 2010-03-16 | 2011-09-21 | 河南省化工设计院有限公司 | Integrated integration device and method for coproducing carbon monoxide, methanol, hydrogen and refined synthetic gas in process of producing synthetic gas from coal |
| CN102264679A (en) * | 2008-12-22 | 2011-11-30 | 国际壳牌研究有限公司 | Process to prepare methanol and/or dimethylether |
| CN103980093A (en) * | 2014-05-29 | 2014-08-13 | 王天双 | Method for preparing methanol from coke oven gas |
| CN109477687A (en) * | 2016-05-24 | 2019-03-15 | 蒂森克虏伯工业解决方案股份公司 | Method for manufacturing the equipment group of mineral building materials and for operating the equipment group |
| CN109627134A (en) * | 2018-11-06 | 2019-04-16 | 杨皓 | A kind of ferroalloy smelting gas manufacture methyl methanol syngas technique |
| CN110143572A (en) * | 2018-02-11 | 2019-08-20 | 苏州盖沃净化科技有限公司 | H2The production method and device of/CO unstripped gas |
-
2002
- 2002-11-22 CN CNB021488681A patent/CN1166603C/en not_active Expired - Fee Related
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1326821C (en) * | 2004-11-19 | 2007-07-18 | 朱宗林 | Process of coarse methanol from synthetized ammonia |
| CN101624540A (en) * | 2008-07-11 | 2010-01-13 | 李东田 | Process for separately desulfurizing and decarbonizing feed gases for coproduction of ammonia and alcohol |
| CN102264679A (en) * | 2008-12-22 | 2011-11-30 | 国际壳牌研究有限公司 | Process to prepare methanol and/or dimethylether |
| CN102264679B (en) * | 2008-12-22 | 2014-07-23 | 国际壳牌研究有限公司 | Process to prepare methanol and/or dimethylether |
| CN102191086A (en) * | 2010-03-16 | 2011-09-21 | 河南省化工设计院有限公司 | Integrated integration device and method for coproducing carbon monoxide, methanol, hydrogen and refined synthetic gas in process of producing synthetic gas from coal |
| CN102191086B (en) * | 2010-03-16 | 2013-08-21 | 河南省化工设计院有限公司 | Integration device and method for coproducing carbon monoxide, methanol, hydrogen and refined synthetic gas in process of producing synthetic gas from coal |
| CN103980093A (en) * | 2014-05-29 | 2014-08-13 | 王天双 | Method for preparing methanol from coke oven gas |
| CN103980093B (en) * | 2014-05-29 | 2015-08-12 | 唐山市冀东溶剂有限公司 | By the method for coke-oven gas methyl alcohol |
| CN109477687A (en) * | 2016-05-24 | 2019-03-15 | 蒂森克虏伯工业解决方案股份公司 | Method for manufacturing the equipment group of mineral building materials and for operating the equipment group |
| CN110143572A (en) * | 2018-02-11 | 2019-08-20 | 苏州盖沃净化科技有限公司 | H2The production method and device of/CO unstripped gas |
| CN110143572B (en) * | 2018-02-11 | 2024-04-19 | 苏州盖沃净化科技有限公司 | H2Method and device for producing CO raw material gas |
| CN109627134A (en) * | 2018-11-06 | 2019-04-16 | 杨皓 | A kind of ferroalloy smelting gas manufacture methyl methanol syngas technique |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1166603C (en) | 2004-09-15 |
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