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A method for producing fuel oil from biomass

A biomass raw material and biomass technology, which is used in the preparation of liquid hydrocarbon mixtures, petroleum industry, processing of hydrocarbon oil, etc., can solve the problems of increasing the content, increasing the difficulty of product separation and purification, and low yield of liquid products, and achieves heating and absorption. rate increase effect

Active Publication Date: 2016-05-25
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

CN100999676A, CN100999677A and WO2010 / 033512 respectively disclose methods for preparing biomass rich in acetol, furfural and methoxyfuran ethanol by microwave catalytic cracking, but the yield of liquid products obtained by these methods is low, and the water content is relatively high, increasing Increased the difficulty of separation and purification of products
It can be seen that the addition of these microwave absorbers is more reflected in improving the pyrolysis conversion rate of biomass, but has little effect on the selectivity of biofuel oil, and even increases the water content in oil, resulting in the real yield of biofuel oil. reduction in rate

Method used

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  • A method for producing fuel oil from biomass
  • A method for producing fuel oil from biomass
  • A method for producing fuel oil from biomass

Examples

Experimental program
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Effect test

Embodiment 1

[0034] 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 2~12

[0036] Mix forest residues (5mm), microwave additives and acidic solution according to a certain ratio and place them in a microwave pyrolysis reactor. Firstly, microwave hydrolysis treatment at 80~120°C for 5~30 minutes, and then heat up to 140~220°C for dehydration , the time is 5~15 minutes, the power density of the whole hydrolysis and dehydration process is 1×10 5 ~3×10 5 W / m 3 . Adjust power to 4×10 5 ~10×10 5 W / m 3 , and pyrolyze the above-mentioned dehydrated biomass at 350-450°C for 4-12 minutes, and then heat up to 500-600°C until no gas is generated. The generated pyrolysis volatiles are recovered by multi-stage condensation and Solid-liquid separation is carried out to obtain biofuel oil. The whole reaction process maintains a negative pressure state, and the reaction pressure is 0.01~0.1MPa. The specific reaction conditions are shown in Table 1, and the liquid composition distribution and yield are shown in Table 2 and Table 3.

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Abstract

The invention discloses a method for preparing fuel oil from biomass. The method comprises the following steps: uniformly mixing a biomass raw material and a microwave additive with an acidic solution; performing microwave hydrolysis treatment; performing microwave dehydration treatment; performing microwave pyrolysis on the dehydrated biomass; recovering generated pyrolysis volatile components by multistage condensation; performing solid-liquid separation to obtain the fuel oil. The biological oil obtained by the method is high in yield, simple in component, high in heat value and good in storage stability.

Description

technical field [0001] The invention relates to a method for preparing fuel oil from biomass, in particular to a method for preparing biomass fuel oil through pyrolysis of biomass. Background technique [0002] Biomass has a wide range of sources, abundant reserves, low price and renewable energy, and the carbon dioxide emission generated during the utilization process is zero, which is environmentally friendly and is a green and environmentally friendly renewable energy source. From the long-term consideration of energy security, using lignocellulose and other biomass to produce high-quality biofuels and chemicals is an effective way to alleviate or even replace the insufficient supply of fossil energy, but it also faces many challenges. [0003] Biomass pyrolysis can realize the conversion of low energy density biomass raw materials into high calorific value liquid fuels, and has become one of the research focuses in the field of biomass energy. According to the experimen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10G1/00
CPCC10G1/00C10G2300/1011
Inventor 王鑫乔凯王领民张全李政白富栋李澜鹏王艳
Owner CHINA PETROLEUM & CHEM CORP
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