Method of preparing combustible gas from anemarrhena dregs
A technology of medicinal dregs and anemarrhena, which is applied in the field of preparation of combustible gas from anemarrhena dregs, which can solve the problems of low yield of combustible gas and poor catalytic biomass effect, so as to promote resource recycling, controllable conditions and reduce production costs Effect
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[0037] The preparation method of described pyrolysis catalyst comprises the following steps:
[0038] S31: Mix alkaline clay, cerium oxide, lanthanum oxide, cobalt oxide, nickel oxide, titanium oxide, aluminum oxide, zinc oxide, barium oxide, magnesium oxide, and silica sol at a stirring speed of 80-180r / min for 6-10min , to obtain spherical particles I;
[0039] The preparation method of alkaline clay described in step S31, comprises the following steps:
[0040] S311: mix bentonite and activated clay wastewater with a concentration of 10% at a weight ratio of 2:9, and stir evenly at a rotating speed of 300r / min to obtain slurry material I;
[0041] S312: Add the slurry material I prepared in step S311 to the inorganic mixed acid with a concentration of 16%, the inorganic mixed acid is phosphoric acid with a concentration of 19wt%, hydrochloric acid with a concentration of 38wt%, and sulfuric acid with a concentration of 27wt% by volume Mixed acid composed of 3:3:2, the wei...
Embodiment 1
[0052] A method for preparing combustible gas from anemarrhena dregs, comprising the following steps:
[0053] S1: Dry Anemarrhena slag with hot air to a moisture content of 12% to obtain dry Anemarrhena slag. The hot air is obtained by heat exchange between coal flue gas and air, and the temperature of the coal flue gas is 1000°C , the air temperature is 20°C, and the hot air temperature is 420°C;
[0054] S2: Pulverize the dry anemarrhena dregs prepared in step S1, and pass through a 500-mesh sieve to obtain a pulverized dry anemarrhena dregs;
[0055] S3: Mix the dry anemarrhena dregs and pyrolysis catalyst at a stirring speed of 100r / min for 12 minutes to prepare mixture I. The mass of the dry anemarrhena dregs and the pyrolysis catalyst The ratio is 220:2, and the pyrolysis catalyst includes the following raw materials in parts by weight: 24 parts of alkaline clay, 4 parts of cerium oxide, 4 parts of lanthanum oxide, 2.5 parts of cobalt oxide, 1.5 parts of nickel oxide, ...
Embodiment 2
[0070] A method for preparing combustible gas from anemarrhena dregs, comprising the following steps:
[0071] S1: Dry Anemarrhena slag with hot air to a moisture content of 8% to obtain dry Anemarrhena slag. The hot air is obtained by heat exchange between coal flue gas and air, and the temperature of the coal flue gas is 820°C , the air temperature is 10°C, and the hot air temperature is 280°C;
[0072] S2: Pulverize the dried anemarrhena dregs prepared in step S1, and pass through a 300-mesh sieve to obtain a pulverized dry anemarrhena dregs;
[0073] S3: Mix the dried anemarrhena dregs and pyrolysis catalyst at a stirring speed of 60 r / min for 8 minutes to prepare mixture I. The mass of the dried anemarrhena residues and pyrolysis catalyst The ratio is 150:1, and the pyrolysis catalyst includes the following raw materials in parts by weight: 10 parts of alkaline clay, 3 parts of cerium oxide, 3 parts of lanthanum oxide, 2 parts of cobalt oxide, 1 part of nickel oxide, tit...
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