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Device for upgrading bio-oil by using Fe/Ni bimetallic modified ZSM-5 catalyst and method thereof

A ZSM-5, catalyst technology, applied in the field of biomass energy, can solve the problems of insufficient hydrocarbons and high oxygen content, and achieve the effect of improving acidity and pore structure, increasing content, improving catalytic activity and deoxidizing ability

Active Publication Date: 2022-02-01
SHANGHAI JIAO TONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0008] For the defects in the prior art, the purpose of this invention is to provide a kind of device and The method can realize ex-situ catalytic pyrolysis of biomass in a catalytic bed reactor, and at the same time can solve the problems of high content of oxygenates and insufficient hydrocarbons in bio-oil, and improve the quality of bio-oil

Method used

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  • Device for upgrading bio-oil by using Fe/Ni bimetallic modified ZSM-5 catalyst and method thereof
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  • Device for upgrading bio-oil by using Fe/Ni bimetallic modified ZSM-5 catalyst and method thereof

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Embodiment 1

[0052] S1. Select ZSM-5 catalyst with a silicon-aluminum ratio of 25 as the parent catalyst, calcinate the parent catalyst at 550°C for 5 hours, then grind and sieve to ensure that the particle size is 0.25-0.85mm. Take an appropriate amount of ZSM-5 catalyst and slowly add it to 2-6wt.% Fe / Ni nitrate solution, keep stirring at 40°C for about 2 hours to form a paste, then dry it at 105°C for 12 hours. Then, it was put into a muffle furnace and calcined at 550° C. for 5 hours. After being taken out, it is ground into powder and sieved to a particle size of 0.18-0.25 mm to prepare a Fe / Ni bimetallic modified ZSM-5 molecular sieve catalyst.

[0053] S2, take by weighing 20g Fe / Ni bimetallic modified ZSM-5 molecular sieve catalyst and 20g poplar sawdust respectively, and place respectively the catalyst bed and the biomass bed of the catalytic bed reactor, then place it in the fixed bed reactor import side.

[0054] S3. Set the temperature of the fixed-bed reactor to 550°C. After...

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Abstract

The invention provides a device for upgrading bio-oil by using a Fe / Ni bimetal modified ZSM-5 catalyst and a method thereof. The device comprises a carrier gas bottle, a fixed bed reactor, a catalytic bed reactor, a condenser, an oil product collecting piece and a gas collecting piece; the carrier gas bottle is connected with one end of the fixed bed reactor; the other end of the fixed bed reactor is connected with the condenser, the oil product collecting piece is arranged at the lower end of the condenser, an opening is formed in one side of the oil product collecting piece, and the opening is connected with the gas collecting piece; the catalytic bed reactor is arranged in the fixed bed reactor, a biomass bed and a catalyst bed are arranged in the catalytic bed reactor, and the biomass bed is located below the catalyst bed. According to the method, a bimetallic modified ZSM-5 molecular sieve catalyst loaded with 2-6wt% of Fe / Ni is prepared, and biomass and the catalyst are effectively separated by adopting a catalytic bed reactor. According to the invention, ex-situ catalytic thermal cracking of biomass in a fixed bed reactor system can be realized, the content of hydrocarbon in the bio-oil is increased, and the quality of the bio-oil is improved.

Description

technical field [0001] The invention relates to the technical field of biomass energy, in particular to a device and method for upgrading bio-oil by using Fe / Ni bimetallic modified ZSM-5 catalyst. Background technique [0002] The massive use of fossil fuels has caused serious environmental and energy crises. Therefore, the development of new renewable energy is of great significance to alleviate the contradiction between energy supply and demand, reduce environmental pollution, and achieve sustainable economic and social development. Biomass is an environmentally friendly renewable energy. Due to its abundant reserves, low cost and carbon neutrality, its development and utilization have been highly valued in recent years. [0003] Pyrolysis technology converts biomass into bio-oil and high value-added chemicals. However, unupgraded bio-oil is rich in oxygenates (such as phenols, alcohols, carboxylic acids, ketones, and aldehydes) and cannot be directly used as fuel. ZSM-...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10G3/00C10G1/00B01J29/46
CPCC10G3/45C10G3/54C10G1/002B01J29/46B01J2229/18Y02P30/20
Inventor 刘荣厚李英凯李冲朱献濮刘鑫
Owner SHANGHAI JIAO TONG UNIV
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