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Method for preparing biological liquid state energy source from agricultural wastes

A residual and agricultural technology, applied in the field of preparing biological liquid energy, can solve the problems of poor quality, unsatisfactory utilization of straw resources, and high cost, and achieve the effects of low cost, good social benefits and easy operation.

Inactive Publication Date: 2008-08-06
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the resource utilization of rice straw is still unsatisfactory, especially in poor quality and high cost

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for preparing biological liquid energy from agricultural residues, the preparation steps comprising:

[0018] (1), using ethyl acetate solvent (purity ≥ 90%) to extract the extract from agricultural residues, then evaporate and recover the solvent at a temperature of 5°C and a vacuum of 0.99MPa to obtain an extract of agricultural residues;

[0019] (2), the mixture of titanium dioxide and palladium according to the addition amount is 5% by mass, and the mass mixing ratio is: m 钯 :m 二氧化钛 = 10:10 catalyst and agricultural residue extract are uniformly mixed, then put into a thermal cracking furnace, filled with nitrogen inert gas, then rapidly raise the temperature to 900°C, cool the thermal cracking steam to below 60°C, and obtain crude oil;

[0020] (3) Distill at a temperature of 60°C and a vacuum of 0.99 MPa, and obtain biological liquid energy after the distillate is cooled.

Embodiment 2

[0022] A method for preparing biological liquid energy from agricultural residues, the preparation steps comprising:

[0023] (1), using acetic acid solvent (purity ≥ 90%) to extract the extract from agricultural residues, then evaporate and recover the solvent at a temperature of 80°C and a vacuum of 0.99MPa to obtain an extract of agricultural residues;

[0024] (2), according to the addition amount is 3% by mass percent the mixture of titanium dioxide, palladium, mass mixing ratio is: m 钯 :m 二氧化钛 =5:0.001 The catalyst is evenly mixed with the agricultural residue extract, then put into a thermal cracking furnace, filled with helium inert gas, then rapidly raise the temperature to 700°C, cool the thermal cracking steam to below 60°C, and obtain crude oil;

[0025] (3) Distill at a temperature of 80°C and a vacuum of 0.99 MPa, and the distillate is cooled to obtain biological liquid energy.

Embodiment 3

[0027] A method for preparing biological liquid energy from agricultural residues, the preparation steps comprising:

[0028] (1), using an ethanol solvent (purity ≥ 90%) to extract the extract from agricultural residues, then evaporate and recover the solvent at a temperature of 100°C and 0 MPa vacuum to obtain an extract of agricultural residues;

[0029] (2) Mix the titanium dioxide catalyst and the agricultural residue extract evenly according to the addition amount of 1% by mass, then put it into a thermal cracking furnace, fill it with carbon dioxide inert gas, then rapidly raise the temperature to 200°C, and cool the thermal cracking steam To below 60°C, crude oil is obtained;

[0030] (3) Distill at a temperature of 50°C and a vacuum of 0.01 MPa, and the distillate is cooled to obtain biological liquid energy.

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Abstract

The invention discloses a method for preparing biological liquid energy resource by agricultural wastes, which comprises the following steps: firstly, utilizing dissolvent to abstract extract from agricultural wastes, evaporating under 5-100 DEG C temperature and 0-0.99MPa vacuum, recovering dissolvent, and getting the extract of agricultural wastes, secondly, evenly mixing catalyst and agricultural wastes extract according to addition quantity whose quality percentage is 0-5%, placing into a thermal cracking furnace, charging in inactive gas, rapidly warming up to 200-900 DEG C, cooling hot cracking gas under 60 DEG C, and getting raw oil, thirdly, distilling under 20-80 DEG C and 0.01-0.99 MPa, and getting biological liquid energy after cooling distillate. The invention can not only improve added value of agricultural wastes, but also can release the shortcomings of national liquid energy, and method for preparing biological liquid energy resource has excellent social benefits, environmental benefits and economic benefit. The method for preparing biological liquid energy resource has the advantages of simple technique, easy operation, excellent controllability, low cost and easy industrialization, which has very extensive application prospect.

Description

technical field [0001] The invention relates to a method for preparing biological liquid energy by utilizing agricultural residues. Background technique [0002] Energy and food are the basic material guarantees for human survival. At present, the world's energy consumption is mainly based on conventional non-renewable energy such as coal, oil and natural gas, which has led to an increasingly prominent energy crisis and ecological crisis. The import of crude oil has become a major hidden danger to my country's energy security, and has gradually become a bottleneck restricting the rapid development of my country's economy. Therefore, the development of renewable and clean bio-energy has important strategic significance. Bioenergy refers to the energy stored by turning solar energy into organic matter through plant photosynthesis, including energy converted from various plants, human and animal manure and organic waste, such as firewood, biogas, biodiesel, fuel ethanol, crop ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G1/00
Inventor 彭万喜吴义强武书彬
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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