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Coal-based clean energy-saving methane technology

A process and methane technology, applied in the field of carbon oxide synthesis of methane, can solve the problems of energy loss, complex process, high cost, and achieve the effect of resource utilization

Inactive Publication Date: 2009-10-07
ENN XINNENG BEIJING TECH +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the process of producing methane from syngas is very mature, but they all have problems such as single product, environmental damage, energy loss, complicated process, and high cost

Method used

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  • Coal-based clean energy-saving methane technology
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  • Coal-based clean energy-saving methane technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Production of 30,000 Nm from syngas from catalytic gasification 3 methane on a daily scale.

[0032] 07,000 Nm to the oxo synthesis section 3 / Day scale H 2 Syngas with / CO of 3.0 to 3.1;

[0033] In the decarburization section can produce 26,400 m 3 / Day CO 2 , used as gas tobacco leavening agent, plant gas fertilizer, supercritical extractant, beverage additive, welding protective gas, production of foam board, fruit and vegetable fresh-keeping agent, production of inorganic chemical products, borax, organic chemical products (dicyandiamide, salicylic acid , methanol, formic acid and its derivatives, etc.), carbon dioxide huff and puff, displacement oil recovery or oilfield recovery aids, etc.;

[0034] The amount of water produced is 5.62 tons / day, which is used as boiler water;

[0035] The heat generated is 6.4×10 7 KJ, the heat is partially recovered in the form of steam and hot water, which can by-produce and recover steam and hot water of different grades...

Embodiment 2

[0041] Production of 30,000 Nm from syngas from underground gasification coal mining 3 methane on a daily scale.

[0042] H from compound energy 2 39,900 Nm 3 / day;

[0043] 12,500 Nm to the oxo synthesis section 3 / Day scale H 2 Syngas with / CO of 3.0 / 1~3.1 / 1;

[0044] In the decarburization section can produce 26,400 m 3 / Day CO 2 , used as gas tobacco leavening agent, plant gas fertilizer, supercritical extractant, beverage additive, welding protective gas, production of foam board, fruit and vegetable fresh-keeping agent, production of inorganic chemical products, borax, organic chemical products (dicyandiamide, salicylic acid , methanol, formic acid and its derivatives, etc.), carbon dioxide huff and puff, displacement oil recovery or oilfield recovery aids, etc.;

[0045] The water produced is 21.1 tons / day, which can be used as boiler water;

[0046] Heat generation is 2.4×10 8KJ, the heat is partially recovered in the form of steam and hot water, which can by...

Embodiment 3

[0052] Production of 30,000 Nm from syngas from catalytic gasification and gasification coal mining 3 methane on a daily scale.

[0053] H from compound energy 2 21,800 Nm 3 / day;

[0054] 6,900 Nm to the oxo synthesis section 3 / Day scale H 2 Syngas with / CO of 3.0 / 1~3.1 / 1;

[0055] In the decarburization section can produce 24,400 m 3 / Day CO 2 , used as gas tobacco leavening agent, plant gas fertilizer, supercritical extractant, beverage additive, welding protective gas, production of foam board, fruit and vegetable fresh-keeping agent, production of inorganic chemical products, borax, organic chemical products (dicyandiamide, salicylic acid , methanol, formic acid and its derivatives, etc.), carbon dioxide huff and puff, displacement oil recovery or oilfield recovery aids, etc.;

[0056] The amount of water produced is 12.6 tons per day, which is used as boiler water;

[0057] Heat generation is 1.4×10 8 KJ, the heat is partially recovered in the form of steam an...

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Abstract

The invention provides a coal-based clean energy-saving methane process. The technology is characterized by taking the synthesis gas obtained by coal gasification as raw material, not going through a transformation process, and supplementing H2 for regulating the ratio of H2 and CO. By the process optimization of the whole flow, various products and energy in the process of methane synthesis are fully recycled and utilized, thereby achieving the purposes of energy conservation, consumption reduction and emission reduction.

Description

technical field [0001] The invention relates to the field of synthesizing methane from carbon oxides, in particular to a new process for recovering and utilizing products and energy in the methane production process. Background technique [0002] The methanation reaction has two main applications: first, it is used for gas purification in ammonia synthesis plants, and second, it is used to produce natural gas and city gas to increase the calorific value of gas. [0003] In both applications, some by-products such as CO 2 And water, etc., they are discharged directly, and they are not used as products, which pollutes the environment and wastes resources. [0004] The methanation reaction is a strongly exothermic reaction, and the problem of heat recovery efficiency is still a difficult problem that has not been completely overcome. [0005] At present, the process of producing methane from syngas is very mature, but they all have problems such as single product, environment...

Claims

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Application Information

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IPC IPC(8): C07C1/04C07C9/04C07C29/16C07C31/12C01B31/20C01B32/50
CPCY02A50/20Y02P20/10
Inventor 田文堂常俊石李金来蒋建明张建祥郭迎秋张梅香于建涛张彦州孟令龙刘雪飞司瑞刚宋欢芳马超次东辉李欢
Owner ENN XINNENG BEIJING TECH
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