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Solid fuel prepared by hydrothermal carbonization of aqueous phase component of biological oil as well as method thereof

A technology of hydrothermal carbonization and solid fuel, applied in the direction of solid fuel, biofuel, waste fuel, etc., can solve the problem of difficult separation of high value-added products, achieve low toxicity of reaction raw materials and processes, flexible equipment technology, and good economy Effect

Active Publication Date: 2014-01-29
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, due to the complex composition of bio-oil itself, the high value-added products after conversion are difficult to separate from the product water phase components

Method used

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  • Solid fuel prepared by hydrothermal carbonization of aqueous phase component of biological oil as well as method thereof
  • Solid fuel prepared by hydrothermal carbonization of aqueous phase component of biological oil as well as method thereof
  • Solid fuel prepared by hydrothermal carbonization of aqueous phase component of biological oil as well as method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] The bio-oil water phase component is obtained by pyrolyzing biomass at 500-700°C, cutting fractions below 120°C, and condensing.

[0029] In a 100ml autoclave, add 60ml of bio-oil water phase components. Cover the still lid tightly, and replace the air in the reaction kettle with nitrogen for 4 times. Then, turn on the condensing device and power supply of the reactor, set the reaction temperature to 130° C., and the stirring speed to 700 rpm. After heating up to 130°C, keep the temperature constant for 2 hours. After the reaction was terminated, the reaction kettle was taken out and cooled to normal temperature, the gas was released, and the lid of the kettle was opened. The solid coke produced by the reaction and the aqueous phase product rich in stable components such as phenols are taken out, separated and dried with a Buchner funnel to obtain a solid fuel.

Embodiment 2

[0031] The bio-oil water phase component is obtained by pyrolyzing biomass at 500-700°C, cutting fractions below 120°C, and condensing.

[0032] In a 100ml autoclave, add 60ml of bio-oil water phase components. Cover the still lid tightly, and replace the air in the reaction kettle with nitrogen for 4 times. Then, turn on the condensing device and power supply of the reactor, set the reaction temperature to 130° C., and the stirring speed to 700 rpm. After raising the temperature to 130°C, keep the temperature constant for 24 hours. After the reaction was terminated, the reaction kettle was taken out and cooled to normal temperature, the gas was released, and the lid of the kettle was opened. The solid coke produced by the reaction and the aqueous phase product rich in stable components such as phenols are taken out, separated and dried with a Buchner funnel to obtain a solid fuel.

Embodiment 3

[0034] The bio-oil water phase component is obtained by pyrolyzing biomass at 500-700°C, cutting fractions below 120°C, and condensing.

[0035] In a 100ml autoclave, add 60ml of bio-oil water phase components. Cover the still lid tightly, and replace the air in the reaction kettle with nitrogen for 4 times. Then, turn on the condensing device and power supply of the reactor, set the reaction temperature to 170° C., and the stirring speed to 700 rpm. After heating up to 170°C, keep the temperature constant for 24 hours. After the reaction was terminated, the reaction kettle was taken out and cooled to normal temperature, the gas was released, and the lid of the kettle was opened. The solid coke produced by the reaction and the aqueous phase product rich in stable components such as phenols are taken out, separated and dried with a Buchner funnel to obtain a solid fuel.

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Abstract

The invention relates to a solid fuel prepared by hydrothermal carbonization of an aqueous phase component of biological oil as well as a method thereof. The method comprises the following steps: (1) preparing the aqueous phase component of biological oil; (2) placing the aqueous phase component of biological oil in a high pressure reaction kettle, fastening a kettle cover, and replacing air in the kettle by nitrogen, hydrogen or inert gases; (3) heating to required reaction temperature, stirring, carrying out hydrothermal carbonization at constant temperature for over 2 hours, wherein the hydrothermal carbonization temperature is 100-300 DEG C; and (4) filtering and separating products after reaction, and drying to obtain the solid fuel. Compared with the conventional method for preparing fuels by saccharide and saccharide derivatives of the aqueous phase component of the biological oil, the method provided by the invention has the advantages of low energy consumption, mild reaction condition, simple technical process, easiness in separating reaction products, environment friendliness and the like.

Description

technical field [0001] The invention relates to a method for preparing solid fuel by hydrothermal carbonization of water phase components of biological oil and the solid fuel. Background technique [0002] At present, the excessive exploitation and utilization of fossil fuels such as coal, oil, and natural gas, and a series of problems such as the depletion of fossil fuels, global warming, environmental pollution, and ecological damage have seriously restricted the sustainable development of the modern economy. Now, energy and environmental issues have become major challenges facing human society. To realize the harmonious coexistence between man and nature and to seek renewable, environmentally friendly and clean energy has attracted widespread attention from scholars from all over the world. Biomass is the only renewable resource that can be stored, and its own carbon cycle can realize CO 2 Zero emission is a renewable carbon source with abundant biomass reserves, and it ...

Claims

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Application Information

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IPC IPC(8): C10L5/00C10B53/02
CPCY02E50/30Y02E50/14Y02E50/10
Inventor 付严叶俊常杰刘纯建
Owner SOUTH CHINA UNIV OF TECH
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