Method for directionally producing aromatic hydrocarbon-rich bio-oil and hydrogen-rich biomass gas

A biogas and bio-oil technology, which is applied in the preparation of liquid hydrocarbon mixtures, processing hydrocarbon oil, biofuels, etc., can solve the problems of low hydrogen selectivity, low utilization rate, and low selectivity of aromatics, and achieve hydrogen selectivity High efficiency, reduced process cost, and high selectivity of aromatics

Inactive Publication Date: 2021-06-18
ZHONGKAI UNIV OF AGRI & ENG
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] Aiming at the problems of low utilization rate of waste, low selectivity of aromatics in pyrolysis bio-oil and low selectivity of hydrogen in biogas, the present invention provides a method that uses chestnut shell as a catalyst in the conversion of hydrogen-rich waste, which can be directional and efficient conversion of hydrogen-rich waste

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  • Method for directionally producing aromatic hydrocarbon-rich bio-oil and hydrogen-rich biomass gas
  • Method for directionally producing aromatic hydrocarbon-rich bio-oil and hydrogen-rich biomass gas
  • Method for directionally producing aromatic hydrocarbon-rich bio-oil and hydrogen-rich biomass gas

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Embodiment 1

[0039] Embodiment 1. A method for directional production of aromatics-rich bio-oil and hydrogen-rich biomass gas

[0040] S1 Take 100g of chestnut shells, clean the chestnut shells, place them at 105°C to dry to constant weight, and crush them to obtain chestnut shell powder. At room temperature, soak the chestnut shell powder in 85 wt. Heat to 80°C and continue to soak for 12 hours. In the step S1, the solid-to-liquid ratio of chestnut shell powder and phosphoric acid solution is 1g:0.94ml. After soaking, place it at 105°C to dry to constant weight, and place it in a ventilated place at room temperature for 12 hours;

[0041] S2 pyrolyzes the chestnut shell powder processed in step S1 in a high-temperature tube furnace, uses high-purity nitrogen to ventilate at a flow rate of 1000mL / min for 15 minutes to remove oxygen in the system, sets the pyrolysis temperature to 850°C, and the reaction time is 30 minutes. During the reaction process, the nitrogen flow rate was adjusted to...

Embodiment 2

[0043] Embodiment 2. A method for directional production of aromatics-rich bio-oil and hydrogen-rich biomass gas

[0044] S1 Take 100g of chestnut shells, clean the chestnut shells, place them at 105°C to dry to constant weight, and crush them to obtain chestnut shell powder. At room temperature, soak the chestnut shell powder in 85 wt. Heat to 75°C and continue to soak for 12 hours. The solid-to-liquid ratio of chestnut shell powder and phosphoric acid solution in step S1 is 1g:0.70ml. After soaking, place it at 105°C to dry to constant weight, and place it in a ventilated place at room temperature for 12 hours;

[0045] S2 pyrolyzes the chestnut shell powder processed in step S1 in a high-temperature tube furnace, uses high-purity nitrogen to ventilate at a flow rate of 1000mL / min for 15 minutes to remove oxygen in the system, sets the pyrolysis temperature to 850°C, and the reaction time is 30 minutes. During the reaction process, the nitrogen flow rate was adjusted to 75mL...

Embodiment 3

[0047] Embodiment 3. A method for directional production of aromatics-rich bio-oil and hydrogen-rich biomass gas

[0048] S1 Take 100g of chestnut shells, clean the chestnut shells, place them at 105°C to dry to constant weight, and crush them to obtain chestnut shell powder. At room temperature, soak the chestnut shell powder in 85 wt. Heat to 85°C and continue to soak for 12 hours. The solid-to-liquid ratio of chestnut shell powder and phosphoric acid solution in step S1 is 1g:0.94ml. After soaking, place it at 105°C to dry to constant weight, and place it in a ventilated place at room temperature for 12 hours;

[0049] S2 pyrolyzes the chestnut shell powder processed in step S1 in a high-temperature tube furnace, uses high-purity nitrogen to ventilate at a flow rate of 1000mL / min for 15 minutes to remove oxygen in the system, sets the pyrolysis temperature to 950°C, and the reaction time is 25 minutes. During the reaction process, the nitrogen flow rate was adjusted to 75mL...

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Abstract

The invention belongs to the technical field of biomass energy utilization, and particularly relates to a method for directionally producing aromatic hydrocarbon-rich bio-oil and hydrogen-rich biomass gas. The invention provides a method for applying chestnut shells as a catalyst to conversion of hydrogen-rich wastes, which comprises the following steps: firstly, crushing the chestnut shells, removing impurities, conducting drying, conducting impregnating with phosphoric acid, then carrying out high-temperature rapid pyrolysis to obtain a solid product, and conducting washing, drying and cooling to obtain porous biochar; and directly using the prepared porous biochar as a catalyst for catalytic pyrolysis of hydrogen-rich wastes, and preparing aromatic hydrocarbon-rich bio-oil and hydrogen-rich biogas directionally at the same time. The method has the advantages of high efficiency, simplicity, greenness and environmental protection, and is suitable for large-scale popularization and application.

Description

technical field [0001] The invention belongs to the technical field of biomass energy utilization, and in particular relates to a method for directional production of aromatic-rich bio-oil and hydrogen-rich biomass gas. Background technique [0002] Hydrogen-rich waste, such as waste plastics, waste oil, and waste tires, has become a major source of pollution for water, air, and soil. A large amount of hydrogen-rich waste is produced every year. Traditional methods such as burial and combustion are difficult to deal with the current large amount of waste, and will cause secondary pollution of soil, water and air. Converting them into fuels or chemicals by means of chemical conversion has become a breakthrough at home and abroad to solve the environmental pollution of waste and its resource utilization. [0003] Hydrogen-rich waste contains hydrocarbon elements and belongs to biomass with an effective carbon-hydrogen ratio. It can be converted into hydrocarbon fuels or chemi...

Claims

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Application Information

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IPC IPC(8): C10B53/02C10B57/08C10G1/00C10G1/10
CPCC10B53/02C10B57/08C10G1/00C10G1/10C10G2300/10C10G2300/1003C10G2300/1007Y02E50/10
Inventor 段邓乐刘袆帆王琴肖更生董晓泳
Owner ZHONGKAI UNIV OF AGRI & ENG
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