Method for preparing biomass base liquid fuel by using ordered mesoporous TiO2-base catalyst
A liquid fuel, biomass technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve problems such as poor catalytic activity, achieve a single pore size distribution, Good catalytic cracking performance, the effect of preventing carbon deposition reaction
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Embodiment 1
[0020] Ordered Mesoporous TiO 2 The preparation of catalyst: take by weighing 10g of P123 (EO 20 PO 70 EO 20 ), it was dissolved in 200g of absolute ethanol, and then successively weighed 6g of titanium tetrachloride (TiCl 4 ) and 25g titanium isopropoxide (Ti(OC 3 h 7 ) 4 ) slowly drop into the above mixed solution, so that TiCl 4 and Ti(OC 3 h 7 ) 4 The molar ratio of P123 and TiCl is 1:2.8 4 The mass ratio is 5:3; the mixture was stirred at room temperature for 2h, then the mixture was transferred to a Petri dish and allowed to stand at 40°C for 1 day in an air atmosphere, and finally the solid xerogel was baked at 350°C in air 2h, 5.7g ordered mesoporous TiO was obtained 2 .
[0021] The above ordered mesoporous TiO 2 Grind to a particle size of about 0.5 mm, and put them all into a fixed-bed catalytic reactor for online catalytic cracking experiments.
[0022] Using dry poplar with a particle size of about 2mm as raw material, rapid pyrolysis is carried out ...
Embodiment 2
[0025] Measure the palladium nitrate dihydrate of 0.192g to be dissolved in deionized water, and the ordered mesoporous TiO prepared in 5.0g embodiment 1 2 Add the powder into the above salt solution, slowly drop ammonia water under stirring until the pH value reaches 9, continue to stir at room temperature for 12 hours, filter and dry at 100°C for 3 hours, and finally reduce the dried product at 280°C under hydrogen and nitrogen atmosphere 3h, 5.08g of Pd-loaded ordered mesoporous TiO was obtained 2 (Pd / TiO 2 ), wherein the mass percentage of Pd is 1.5%.
[0026] The above ordered mesoporous Pd / TiO 2 Grind to a particle size of about 0.5 mm, and put them all into a fixed-bed catalytic reactor for online catalytic cracking experiments.
[0027] Using dry poplar with a particle size of about 2mm as raw material, rapid pyrolysis is carried out at 500°C in a nitrogen atmosphere. After gas-solid separation, the high-temperature pyrolysis gas is directly passed into the ordered ...
Embodiment 3
[0030] Ordered Mesoporous TiO 2 The preparation of catalyst: take by weighing 8g of P123 (EO 20 PO 70 EO 20 ), it was dissolved in 160g of absolute ethanol, and then successively weighed 6g of titanium tetrachloride (TiCl 4 ) and 25g titanium isopropoxide (Ti(OC 3 h 7 ) 4 ) slowly drop into the above mixed solution, so that TiCl 4 and Ti(OC 3 h 7 ) 4 The molar ratio of P123 and TiCl is 1:2.8 4 The mass ratio is 4:3; the mixture was stirred at room temperature for 2h, then the mixture was transferred to a Petri dish and allowed to stand at 40°C for 1 day in an air atmosphere, and finally the solid xerogel was baked at 350°C in air 2h, 5.7g ordered mesoporous TiO was obtained 2 .
[0031]The above ordered mesoporous TiO 2 Grind to a particle size of about 0.5 mm, and put them all into a fluidized bed catalytic reactor for online catalytic cracking experiments.
[0032] Using natural air-dried poplar wood (moisture content 8%) with a particle size of about 2mm as ra...
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