Method for preparing hydrogen and nitrogen gas with specific composition from multi-ingredient gas containing H2 and N2

A multi-component, nitrogen technology, applied in hydrogen production, gas fuel, petroleum industry, etc., can solve problems that have not been reported

Inactive Publication Date: 2012-05-02
何巨堂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0014] Method of the present invention has no report

Method used

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  • Method for preparing hydrogen and nitrogen gas with specific composition from multi-ingredient gas containing H2 and N2
  • Method for preparing hydrogen and nitrogen gas with specific composition from multi-ingredient gas containing H2 and N2
  • Method for preparing hydrogen and nitrogen gas with specific composition from multi-ingredient gas containing H2 and N2

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Experimental program
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Embodiment 1

[0249] This embodiment is a co-production process of co-production of raw material gas for synthesis of ammonia, including the following steps:

[0250] ①The combustion chamber of the carbonization furnace in the process of carbonization of internal heating coal carbonization to semi-coke uses air as the oxidant, and the composition of the off-ring gas is shown in Table 9-1, which belongs to CO 2 -CO-CH 4 - Rich N 2 -H 2 Department of matter;

[0251] ②In the off-ring gas comprehensive processing unit 300, complete the following tasks:

[0252] a from the ring gas to complete the "wet hydrogen sulfide removal process" 1101, the H 2 The volume concentration of S is reduced to ~0.02%. The gas is divided into two parts in the process flow. The first part of the gas becomes desulfurized gas through the solvent absorption process using 1 or 2 solvent absorption towers. The rich solvent is mixed with air and regenerated simultaneously. Foam sulfur, the foam sulfur passes throug...

Embodiment 2

[0313] Based on Embodiment 1, a comprehensive treatment gas pre-separation step 1500 is set in step 1000, and the separation of comprehensive treatment gas TF100 can be obtained mainly by H 2 and N 2 Composition of feed gas F100, deCO 2 off N 2 Rich in methane, rich in CO 2 gas, the deCO generated in step 1500 2 off N 2 The methane-enriched gas is used as a natural gas substitute, and the present invention is combined with the production process of the natural gas substitute to form a co-production natural gas process.

Embodiment 3

[0315] Based on Example 1, the deCO generated in step 1500 2 off N 2 The methane-enriched gas is used as raw material gas for producing liquefied methane gas, and the present invention is combined with a liquefied natural gas production process to form a co-production LNG process.

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Abstract

The invention relates to a method for preparing hydrogen and nitrogen gas with specific composition from multi-ingredient gas containing H2 and N2, which comprises the steps that: in a flow division step 1000, raw material gas F100 is divided into a first path of raw material gas and a second path of raw material gas, and in addition, the flow rate ratio is controlled; in the step 2000, hydrogen and nitrogen gas PHN is prepared on the basis of the first path of raw material gas; in a pressure variation absorption and separation step 3000, the second path of raw material gas is used for preparing hydrogen gas PH and nitrogen-rich gas PN, and in addition, the PH or PN is selected to be used as regulation gas PT; and in the flow merging step 4000, the regulation gas PT and the PHN are mixed into hydrogen and nitrogen regulation gas P with the specific H2/N2 molecular proportion. Ring breaking gas produced in the inner heating coal dry distillation process is subjected to the integral treatment step to complete the steps of desulfuration, heavy hydrocarbon removal, deoxygenation, CO conversation nitrogen preparation and the like to obtain integrally treated gas used as the raw material gas F100, when the method is adopted, the synthesis ammonia raw material gas (hydrogen and nitrogen regulation gas P) and carbon-dioxide-rich gas can be simultaneously obtained, and the inner heat type coal dry distillation process for coproducing synthesis ammonia (or ammonium bicarbonate or urea) is formed.

Description

technical field [0001] The present invention relates to a kind of containing H 2 , N 2 A method for preparing hydrogen-nitrogen gas with a specific composition from multi-component gas; in particular, the present invention relates to a method for producing nitrogen-enriched gas and raw coal gas from raw coal gas produced in an internal heat type coal dry distillation process; The invention discloses a method for producing nitrogen-enriched gas and raw coal gas to produce raw material gas for synthetic ammonia in the coal-to-semi-coke process. Background technique [0002] As we all know, the Anshan Thermal Energy Research Institute of China Iron and Steel Group began to continuously research and develop the technology of "using non-caking coal or weakly caking coal lump coal as raw material to produce semi-coke for ferroalloys in an internal heating vertical carbonization furnace" in the early 1980s ( Hereinafter referred to as Sinosteel Gas Manufacturing Technology BT), u...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C01B3/02C10L3/10
Inventor 何巨堂
Owner 何巨堂
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