A device and method for high-value utilization of biomass based on photothermal coupling

A light-heat coupling and biomass technology, which is applied in the direction of biofuels, charging devices, special forms of dry distillation, etc., can solve the problems of low calorific value of products, high energy consumption, and easy coking when heated, so as to reduce energy consumption, The effect of avoiding coking and carbon deposition and improving product selectivity

Active Publication Date: 2022-04-12
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, there are many problems in the process of thermal conversion and utilization of biomass, such as large energy consumption, low calorific value of products, and easy coking when heated.

Method used

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  • A device and method for high-value utilization of biomass based on photothermal coupling
  • A device and method for high-value utilization of biomass based on photothermal coupling

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] a. Place 1g of cotton in the loading basket in advance, match the loading basket with the thermal reactor, place it in the center of the heating device, and connect the thermal reactor, vacuum reactor and integrated light source by means of circular buckles;

[0052] b Use the control unit to control the flow rate of the carrier gas to 200mL / min, use nitrogen as the protective gas, set the temperature of the temperature control device to 300°C, the heating rate is 10°C / s, and the wavelength of the integrated light source is 300nm;

[0053] The light volatile matter and combustible gas obtained from biomass pyrolysis are collected through the condensation collection unit.

[0054] Sampling and measurement at intervals of 5 minutes, the change diagram of small molecular substance content and flammable gas content in light tar obtained from condensation during this process is shown in figure 2 .

Embodiment 2

[0056] Different from Example 1, the raw material in this example is 1g of corn stalks, the control unit is used to control the flow rate of the carrier gas to 300mL / min, nitrogen is used as the protective gas, the temperature control device is set at a temperature of 350°C, the heating rate is 5°C / s, and the light source is integrated The wavelength is 320nm.

Embodiment 3

[0058] Different from Example 1, the raw material in this example is 1g of cotton, the control unit is used to control the carrier gas flow rate to 400mL / min, the protective gas is argon, the temperature control device is set at 400°C, the heating rate is 5°C / s, and the light source is integrated The wavelength is 350nm.

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Abstract

The invention belongs to the technical field related to biomass energy utilization, and discloses a device and method for high-value utilization of biomass based on photothermal coupling. The device includes a carrier gas protection unit, a heating unit, a photocatalytic cracking unit and a condensation collection unit, wherein the carrier gas protection unit is used to form a carrier gas cycle; the heating unit includes a thermal reactor, a loading basket and a heating device, and the loading crane The basket is suspended in the thermal reactor to install the biomass to be treated, and the heating device is installed outside the thermal reactor to heat the thermal reactor; the photocatalytic cracking unit includes a vacuum reactor, a spoiler and an integrated The light source and the spoiler are interlaced with each other, the spoiler is loaded with a photocatalyst, and the integrated light source is used as a light source; the condensation collection unit is used to collect light pyrolysis oil and combustible gas produced by cracking biomass. Through the present invention, the required energy consumption is low, the problem of carbon deposition in the reaction process is reduced, and the quality of the product obtained by biomass pyrolysis is improved.

Description

technical field [0001] The invention belongs to the technical field of biomass energy utilization, and more specifically relates to a device and method for high-value utilization of biomass based on photothermal coupling. Background technique [0002] Biomass energy is clean, renewable, widely distributed and carbon neutral. The development of biomass energy utilization technology is conducive to optimizing my country's energy supply structure and alleviating increasingly severe environmental problems. my country has abundant reserves of biomass resources, and the annual output of biomass raw materials that can be used as energy reaches 5 billion tons, equivalent to about 2.4 billion tons of standard coal, which has huge economic value. Therefore, the research and development of high-efficiency biomass conversion technology is of great significance to solve the "three rural" problems, improve the ecological environment, promote sustainable social and economic development, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C10B53/02C10B31/02C10B57/00
CPCY02E50/10
Inventor 汪一熊依旻汪雪棚熊哲向军胡松苏胜江龙徐俊
Owner HUAZHONG UNIV OF SCI & TECH
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