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Method for preparing high-quality fuel oil from biomass

A biomass raw material, biomass technology, applied in the direction of fuel, liquid carbon-containing fuel, petroleum industry, etc., can solve the problems of increasing the difficulty of product separation and purification, high water content, low yield of bio-oil, etc., to achieve the benefit of continuous production Operation, temperature rise, absorption rate improvement, and high yield effect

Active Publication Date: 2015-04-29
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 bio-oil obtained by these methods is low, and the water content is high, increasing Increased the difficulty of separation and purification of products
[0005] WO2009 / 141166 reported that furfural or 5-alkoxymethylfurfural can be converted into furan alkyl alcohol ether under the condition that hydrogenation catalyst and acidic catalyst exist simultaneously, but there are problems of expensive raw materials and difficult acquisition
WO2009 / 030508, WO2007 / 104515 and WO2009 / 030511 respectively disclose C 5 and C 6 The reaction of sugar raw materials and alcohols in the presence of acidic catalysts produces furfural and 5-alkoxymethylfurfural, which is then hydroetherified into furanyl alcohol ethers, but the selectivity of the target product is poor, and there are many steps and complicated processes , high energy consumption
[0006] CN102442982A discloses a method for preparing furan dimethanol dialkyl ether from sugar. Under the condition that acid catalyst and hydrogenation catalyst exist simultaneously, the dehydration, hydrogenation and etherification of sugar are completed by one-step method to prepare the corresponding furan dimethanol dialkyl ether. Ether products, but the product yield is less than 40%

Method used

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  • Method for preparing high-quality fuel oil from biomass

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] First weigh a certain amount of silica sol and dilute it with water to a 5% hydrosol solution, then add а-Al to the silica sol solution 2 O 3 Powder (less than 1μm in diameter), ZrO 2 Powder (diameter less than 0.5μm), add an appropriate amount of ethanol, and put it into a ball mill for wet grinding. After wet grinding for 24 hours, the powder was dried, and the powder passed through a 60-mesh sieve was calcined at 600° C. for 2 hours, and then shaped as required. The formed body was sintered at 1200°C for 2 hours in the atmospheric environment and then slowly cooled to room temperature with the furnace temperature. Two microwave additives TC-1 and TC-2 were prepared according to the different proportions of raw materials, in which the composition of TC-1 was 65% Al 2 O 3 , 35%SiO 2 , 5%ZrO 2 , the composition of TC-2 is 85% Al 2 O 3 , 10%SiO 2 , 5%ZrO 2 .

Embodiment 2

[0035] Mix 100g of wood chips (5mm), TC-1 (5mm) and 0.5% phosphoric acid solution according to the mass ratio of 1:0.1:0.1 and place them in a microwave pyrolysis reactor. First, microwave hydrolysis at 120 °C for 5 minutes, and then heat up to Dehydration was carried out at 140 °C for 15 minutes, and the power density of the entire hydrolysis and dehydration process was 1 × 10 5 W / m 3 . Adjusted power 4×10 5 W / m 3 , and the above-mentioned dehydrated biomass was pyrolyzed at 350 °C for 4 minutes, and then heated to 500 °C for pyrolysis until no gas was generated, and the generated pyrolysis volatiles were recovered by multi-stage condensation and subjected to solid-liquid separation to obtain Bio-oil 38g, of which furan content is 24.1% and sugar content is 9.7%.

Embodiment 3

[0037] Mix 100g of wood chips (5mm), TC-2 (5mm) and 5% phosphoric acid solution according to the mass ratio of 1:1:0.3 and place them in a microwave pyrolysis reactor. First, microwave hydrolysis at 80 °C for 30 minutes, and then heat up to Dehydration was carried out at 160 °C for 10 minutes, and the power density of the entire hydrolysis and dehydration process was 2 × 10 5 W / m 3 . Adjust the power to 4×10 5 W / m 3 , and the above-mentioned dehydrated biomass was pyrolyzed at 400 °C for 12 minutes, and then heated to 600 °C for pyrolysis until no gas was generated. Bio-oil 58g, of which furan content is 59.4% and sugar content is 19.6%.

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Abstract

The invention discloses a method for preparing high-quality 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 biological oil; producing an etherification reaction of the biological oil to obtain the furyl alcohol ether-rich fuel oil. The fuel oil obtained by the method is high in yield, simple in component, high in heat value, good in storage stability and suitable for being used as gasoline and diesel oil or an additive component of the gasoline and diesel oil.

Description

technical field [0001] The invention relates to a method for preparing high-quality fuel oil from 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 biofuel is an effective way to alleviate or even replace the shortage of fossil energy supply, but it also faces many challenges. How to effectively develop and utilize this resource has become an unavoidable problem. [0003] Biomass pyrolysis can convert low-energy-density biomass raw materials into liquid fuels with high calorific value. Low and poor stability, can not be directly used as vehicle fuel. In order to improve the quality of biomass pyrolysi...

Claims

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Application Information

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IPC IPC(8): C10L1/02
Inventor 王鑫张全李政白富栋李澜鹏王艳关浩乔凯王领民
Owner CHINA PETROLEUM & CHEM CORP
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