Device and method for preparing synthesis gas with adjustable h2/co ratio from methane-rich gas

A technology for synthesis gas and methane gas, applied in chemical instruments and methods, climate sustainability, sustainable manufacturing/processing, etc., can solve problems such as poor proportion control, increase construction investment and operating cost, and reduce construction investment. and operating costs, the effect of avoiding the CO2 separation step
CN104401938BInactive Publication Date: 2016-04-20SOUTHEAST UNIV
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
SOUTHEAST UNIV
Publication Date
2016-04-20
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention discloses an apparatus for preparing synthetic gas with adjustable H2 / CO proportion by methane-rich gas and a method thereof. The apparatus comprises a fuel reactor, an air reactor, a first cyclone separator, a second cyclone separator, a material returning valve 1, a material returning valve 2 and a material returning valve 3; a bubbling fluidized bed is arranged at bottom of the fuel reactor, a lifting pipe is arranged at upper part of the fuel reactor; the bubbling fluidized bed is connected to the air reactor through the material returning valve 1, the upper part of the air reactor is connected to the first cyclone separator, a blanking tube of the first cyclone separator is connected to the lifting pipe through the material turning valve 2, the upper part of the lifting pipe is connected to the second cyclone separator, and the blanking tube of the second cyclone separator is connected to the lower part of the bubbling fluidized bed through the material turning valve 3. By adjusting the circulation volume of oxygen carrier and stay time in the bubbling fluidized bed, the reduction depth of the oxygen carrier in the bubbling fluidized bed can be controlled, proportion of H2 / CO at a synthetic gas outlet can be adjusted, subsequent synthesis technology is convenient, CO2 can be instantly separated and captured, and separating step can be avoided.
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Description

technical field

[0001] The invention relates to the technical field of synthesis gas preparation, in particular to a method for preparing H from methane-rich gas. 2 Apparatus and method for syngas with adjustable / CO ratio. Background technique

[0002] The main components of syngas are CO, H 2 , is an important basic industrial raw material, and its application is extremely extensive. It has important applications in chemical synthesis industries such as the preparation of fuel or fuel additives, low-carbon olefins, and synthetic oils. It can also be used to prepare H 2 , or directly for power generation, such as integrated gasification combined cycle (IGCC). The cheap and clean synthesis gas preparation process is an important basis for realizing the greening of energy industry and chemical industry.

[0003] The main raw materials for producing synthesis gas are natural gas and coal. The synthesis gas preparation process using coal as raw material is called coal gasif...

Claims

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