Preparation method for biological oil
A technology for bio-oil and bio-heavy oil, which is applied in the preparation of liquid hydrocarbon mixtures, biofuels, chemical instruments and methods, etc., can solve the problems of high cost and impact of quality improvement, and achieve the effect of improving the absorption rate of temperature rise
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Embodiment 1
[0029] First weigh a certain amount of silica sol and add water to dilute to 5% aqueous sol solution, then add а-Al to the silica sol solution 2 o 3 Powder (diameter less than 1μm), ZrO 2 Powder (diameter less than 0.5 μm), then add appropriate amount of ethanol, put it into a ball mill for wet grinding. After wet milling for 24 hours, dry it. The powder passed through a 60-mesh sieve is calcined at 600°C for 2 hours, and then shaped as required. The molded body was sintered at 1200°C for 2 hours in the atmosphere, and then slowly cooled to room temperature with the furnace temperature. Two kinds of microwave additives TC-1 and TC-2 were prepared according to the different proportions of raw materials, and the composition of TC-1 was 65%Al 2 o 3 , 35%SiO2 2 , 5%ZrO 2 , TC-2 composition is 85%Al 2 o 3 , 10%SiO2 2 , 5%ZrO 2 .
Embodiment 2
[0031] Mix 100g wood chips (5mm) with TC-1 according to the mass ratio of 1:0.1 and send them into the microwave cracking reactor. First, the biomass was preheated at 120°C for 30 minutes, and the power density was 1×10 5 W / m 3, then heat up to 400°C for 4 minutes, and then heat up to 500°C for pyrolysis until no gas is produced. The power density of the entire pyrolysis process is 4×10 5 W / m 3 . The gasification products formed by pyrolysis were condensed and separated into water phase and oil phase directly after standing still. The collected oil phase was 4.3g of bio-heavy oil with a water content of 0.8%, and the water phase was 26.4g with a water content of 39.5%. Under a nitrogen atmosphere, calcium oxide was added to the above water phase and stirred at 80°C for 60 minutes, wherein the mass ratio of water phase to calcium oxide was 1:0.2, then the temperature was raised to 160°C, and the reaction was distilled for 20 minutes. After the reaction was completed, solid...
Embodiment 3
[0033] Mix 100g wood chips (5mm) with TC-2 according to the mass ratio of 1:1 and send them into the microwave cracking reactor. First, the biomass was preheated at 220°C for 5 minutes, and the power density was 3×10 5 W / m 3 , then heat up to 350°C for 9 minutes, and then heat up to 600°C until no gas is generated. The power density of the whole pyrolysis process is 10×10 5 W / m 3 . The gasification products formed by pyrolysis were condensed and separated into water phase and oil phase directly after standing still. The collected oil phase was 11.8g of bio-heavy oil with a water content of 1.2%, and the water phase was 53.6g with a water content of 34.9%. Under a nitrogen atmosphere, calcium oxide was added to the above water phase and stirred at 80°C for 120 minutes, wherein the mass ratio of water phase to calcium oxide was 1:0.05, then the temperature was raised to 110°C, and the reaction was distilled for 60 minutes. After the reaction was completed, the solid-liquid ...
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