Method for preparing hydrogen through coal gasification and acid gas removal device
A sour gas and coal gasification technology, applied in gas dust removal, combustible gas manufacturing, chemical instruments and methods, etc., can solve the problems of poor deacidification effect and low deacidification efficiency
Pending Publication Date: 2022-06-07
ORDOS VOCATIONAL COLLEGE
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Problems solved by technology
In the existing method for producing hydrogen from coal gasification, the generated gas contains hydrogen, water vapor and acid gas. In order to obtain hydrogen, it is necessary to deacidify the produced gas, and the deacidification effect of the existing deacidification equipment is Not good, and the deacidification efficiency is low
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[0035] Example: as Figure 1-7 As shown in the present invention, a method for preparing hydrogen from coal gasification and an acid gas removal device, the method comprises the following steps:
[0036] Step 1, make coal lumps and gasification agent gasification reaction, obtain ash residue and dust-laden hydrogen-containing crude gas;
[0037] Step 2, carrying out gas-solid separation on the dusty hydrogen-containing crude gas to obtain fly ash and hydrogen-containing crude gas;
[0038] Step 3, react the hydrogen-containing crude gas with the catalyst and water vapor to obtain a gas product; the gas product includes: hydrogen, water vapor and acid gas;
[0039] In step 4, the gas product is separated and processed to obtain hydrogen.
[0040] An acid gas removal device, used for deacidification treatment of gas products in step 4 of the method for preparing hydrogen from coal gasification, comprising a deacidification tank 3, an adsorption tank 2 and a gas drying device 1...
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The invention discloses a method for preparing hydrogen through coal gasification and an acid gas removal device, and the method comprises the following steps: carrying out gasification reaction on coal briquettes and a gasifying agent to obtain ash and dust-containing hydrogen-containing raw gas; carrying out gas-solid separation on the dust-containing hydrogen-containing raw gas to obtain fly ash and hydrogen-containing raw gas; reacting the hydrogen-containing raw gas with a catalyst and water vapor to obtain a gas product; and carrying out separation treatment on the gas product to obtain hydrogen. According to the invention, mixed gas of hydrogen, water vapor and acidic gas is introduced into the deacidification tank main body filled with adsorption alkali liquor for an acid-alkali reaction, so that the removal work of pickling gas is realized, and then the deacidified gas enters the adsorption tank filled with an adsorption water body; the method comprises the following steps: dissolving and adsorbing alkaline adsorption liquid in gas mixed with the alkaline adsorption liquid to obtain mixed gas only containing water vapor and hydrogen, and finally drying under the action of gas drying equipment to obtain hydrogen.
Description
technical field [0001] The invention relates to the technical field of hydrogen production, in particular to a method for preparing hydrogen from coal gasification and an acid gas removal device. Background technique [0002] The heat released per unit mass of hydrogen is three times that of gasoline per unit mass, and the final product of hydrogen combustion is only water, which can be considered as an absolutely clean fuel. Therefore, it has long been regarded as a potential replacement for fossil fuels. Clean energy for fuel. Among them, hydrogen production technology is the most important technical link of hydrogen energy utilization. my country's coal resources are relatively abundant but oil and natural gas resources are relatively poor. The rational, economical, efficient and clean utilization of coal is an important national policy for my country's energy construction at present and in the next few decades. and an important foundation for sustainable economic develo...
Claims
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Patent Timeline
Login to View More IPC IPC(8): C10J3/02C10J3/82C10K1/00C10K1/32C10K1/12C10K1/02B01D35/02B01D29/96B01D35/16C01B3/50C01B3/58
CPCC10J3/02C10J3/20C10J3/82C10K1/003C10K1/32C10K1/02C10K1/12B01D35/02B01D29/96B01D35/16C01B3/508C01B3/58C01B3/50C01B2203/1241C01B2203/0495C01B2203/0465C01B2203/0435C01B2203/0233Y02E60/36
Inventor 段丽丽栾永超马桂香种延竹张爱文
Owner ORDOS VOCATIONAL COLLEGE