Preparation method of temperature-responsive solid catalyst for biomass upgrading
A solid catalyst, temperature response technology, applied in physical/chemical process catalysts, chemical instruments and methods, applications, etc.
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Embodiment 1
[0036] (1) Mix glucosamine hydrochloride and silicon dioxide at a ratio of 1:0.5, dissolve in water, and slowly evaporate the water while stirring at 80°C to obtain solid particles.
[0037] (2) After the solid particles are ground, they are calcined at 500° C. in a nitrogen atmosphere (heating rate 5° C. / min, heat preservation 1 h) to obtain a black solid powder.
[0038] (3) Soak the black solid powder in 5% HF solution to remove silica, then filter, wash with deionized water several times until hydrofluoric acid is washed, and finally dry in an oven at 70°C for 10 hours to obtain mesoporous carbon nitrogen material.
[0039] (4) Soak the prepared carbon-nitrogen material in 6mol / L hydrochloric acid for 24 hours, filter it, wash it with deionized water for several times until the excess acid is washed, and finally dry it in an oven at 70°C for 10 hours to obtain Upgraded temperature responsive solid catalyst.
[0040] Catalytic performance analysis test:
[0041] Put 0.1g...
Embodiment 2
[0047] (1) Mix glucosamine hydrochloride and silicon dioxide at a ratio of 1:5, dissolve in water, and slowly evaporate the water while stirring at 86°C to obtain solid particles.
[0048] (2) After the solid particles are ground, they are calcined at 400° C. in a nitrogen atmosphere (heating rate 8° C. / min, heat preservation 1 h) to obtain a black solid powder.
[0049] (3) Soak the black solid powder in 8% HF solution to remove silica, then filter, wash with deionized water for several times until hydrofluoric acid is washed, and finally dry in an oven at 75°C for 12 hours to obtain mesoporous carbon nitrogen material.
[0050] (4) Soak the prepared carbon-nitrogen material in 6mol / L hydrochloric acid for 25 hours, filter it, wash it with deionized water for several times until the excess acid is washed, and finally dry it in an oven at 75°C for 15 hours to obtain Upgraded temperature responsive solid catalyst.
[0051] Catalytic performance analysis test:
[0052] Put 0.1g...
Embodiment 3
[0055] (1) Mix glucosamine hydrochloride and silicon dioxide at a ratio of 1:1, dissolve in water, and slowly evaporate the water while stirring at 80°C to obtain solid particles.
[0056] (2) After the solid particles are ground, they are calcined at 600° C. in a nitrogen atmosphere (heating rate 6° C. / min, heat preservation 1 h) to obtain a black solid powder.
[0057] (3) Soak the black solid powder in 10% HF solution to remove the silica template, then filter it, wash it with deionized water for several times until it is washed with hydrofluoric acid, and finally dry it in an oven at 72°C for 11 hours to obtain a mesoporous carbon nitrogen material.
[0058] (4) Soak the prepared carbon-nitrogen material in 10mol / L hydrochloric acid for 15 hours, filter it, wash it with deionized water for several times until the excess acid is washed, and finally dry it in an oven at 75°C for 9 hours to obtain Upgraded temperature responsive solid catalyst.
[0059] Catalytic performanc...
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