Method for preparing combustible gas from pseudo-ginseng decoction dregs
A technology of medicinal dregs and Tianqi, which is applied to the field of preparing combustible gas from the medicinal residues of Tianqi, can solve the problems of low yield of combustible gas, poor catalytic biomass effect, etc., and achieves the promotion of resource recycling, controllable conditions, and reduction of 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 Tianqi medicinal dregs, comprising the following steps:
[0053] S1: Dry Tianqi medicinal residues with hot air to a moisture content of 13% to obtain dried Tianqi medicinal residues. 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: Grinding the dried Rhizoma Rhizome prepared in step S1, and passing through a 500-mesh sieve to obtain a crushed dried Rhizoma Rhizoma Rhizoma;
[0055] S3: Mix the crushed dried Rhizoma Rhizoma Rhizome produced in step S2 with the pyrolysis catalyst at a stirring speed of 240r / min for 12min to prepare mixture I. The ratio is 240:2, 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 oxid...
Embodiment 2
[0070] A method for preparing combustible gas from Tianqi medicinal dregs, comprising the following steps:
[0071] S1: Dry Tianqi medicinal residues with hot air to a moisture content of 11% to obtain dried Tianqi medicinal residues. 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: Grinding the dried Rhizoma Rhizome prepared in step S1, and passing through a 300-mesh sieve to obtain a crushed dried Rhizoma Rhizoma Rhizoma;
[0073] S3: Mix the crushed dry Radix radix residues prepared in step S2 with the pyrolysis catalyst for 14 minutes at a stirring speed of 80 r / min to prepare mixture I. The ratio is 180:1, 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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