Device and method for preparing oxygen-containing liquid fuel by catalytically converting biological oil

Abstract

The invention provides a device and a method for preparing oxygen-containing liquid fuel by catalytically converting biological oil. The device comprises a biomass rapid thermal cracking oil preparing system (I), a biological oil oil-water phase separation system (II), an oil phase biological oil chemical chain hydrogen production system (III) and a hydrogen output water supply phase biological oil catalytic hydrogenation system (IV), wherein the biomass rapid thermal cracking oil preparing system is used for preparing the biological oil; the biological oil oil-water phase separation system is used for receiving the biological oil and separating the biological oil into oil-phase biological oil and water-phase biological oil to be respectively output to the oil phase biological oil chemical chain hydrogen production system (III) and the hydrogen output water supply phase biological oil catalytic hydrogenation system (IV). The method comprises the following steps of: carrying out heat cracking on a biomass to prepare oil; carrying out water phase and oil phase separation on the obtained biological oil; carrying out chemical chain method on the oil-phase biological oil to produce hydrogen; and providing a'hydrogen source' to the water-phase biological oil to carry out two-step catalytic hydrogenation in a slurry bed; and directly separating and extracting a hydrogenated product to obtain the oxygen-containing liquid fuel. The device and method disclosed by the invention can be used for realizing full-component'graded conversion' of the biological oil.

Description

technical field [0001] The invention discloses a method and a device for preparing oxygen-containing liquid fuel through catalytic conversion of bio-oil, and relates to the field of utilization of biomass resources. Background technique [0002] Biomass energy is the only "multi-functional" renewable energy that can be converted into gas, solid and liquid fuels and can completely replace fossil energy. It focuses on the development of high-end biomass-based fuels that can replace petroleum-based liquid fuels and chemicals. Products (oxygenated liquid fuels and high-value chemicals) will help fundamentally alleviate my country's oil shortage situation, ensure national energy security, and meet the major strategic needs of my country's national development. At present, the mainstream technologies for converting biomass into liquid fuels at home and abroad include biochemical conversion and thermochemical conversion. Among them, biomass pyrolysis liquefaction technology is one o...

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Problems solved by technology

[0006]Technical problem: The present invention aims to solve the problem that the catalyst is easy to coke and loses catalytic performance during the process of upgrading the quality of bio-oil by thermochemical catalytic method for all components of bio-oil. The problem of stability and continuity reduction of the process is brought about, and the thermochemical catalytic conversion upgrade of the water phase or oil phase components in the bio-oil is not realized. The utilization of all components of the bio-oil is proposed. Phase (non-water-soluble phase, here referred to as "oil phase") bio-oil and water-phase bio-oil graded utilization, bio-oil catalytic conversion of complementary hydrogen sources to prepare oxygenated liquid fuels method and device, that is, a method and device for preparing oxygenated liquid fuel by catalytic conversion of bio-oil Apparatus and method for oxygenated liquid fuel

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