Lignocellulosic biomass hydrothermal liquefaction device and system
A lignocellulosic, hydrothermal liquefaction technology, applied in chemical/physical/physical chemical processes, chemical/physical/physical chemical fixed reactors, chemical/physical processes, etc., can solve the difficulty of product separation and cannot be popularized and applied , high separation cost and other issues, to achieve the effect of low system requirements, lower production costs, and simple operation
Active Publication Date: 2021-07-20
TIANJIN UNIV
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Problems solved by technology
But now the solid (liquefaction residue, solid catalyst) and liquid (bio-oil) generally exist in the reactor as a mixture, which makes the separation cost high
[0006] The hydrothermal liquefaction of lignocellulosic biomass into bio-oil / chemicals has great potential, but it is still in the laboratory stage and cannot be popularized due to problems such as high energy consumption and difficult product separation.
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Embodiment 1
[0059] The reaction kettle designed by the present invention is mainly aimed at lignocellulose hydrothermal liquefaction research and pilot application, and the specific lignocellulosic biomass hydrothermal liquefaction system is as follows: image 3 shown. The hydrothermal liquefaction reaction is carried out in a new type of reactor, such as figure 1 and figure 2 As shown, the lignocellulosic biomass is crushed to a suitable particle size, and put into the inner liner 14 together with the solid catalyst ( figure 2 shown), and placed in the reactor (catalyst and particle size larger than the sieve hole of the circular drum sieve), then add a certain proportion of deionized water, stir evenly with a glass rod, seal the reactor, and use nitrogen or other The active (inert) gas purging replaces the air in the reactor cavity.
[0060] The specific use process of the present embodiment 1 taking the laboratory grade micro-reactor as the object:
[0061] It is very important t...
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The invention belongs to the technical field of green renewable energy for producing bio-oil, and in particular relates to equipment and a system for preparing bio-oil / chemicals from lignocellulosic biomass. The lignocellulosic biomass hydrothermal liquefaction device is mainly a reaction kettle. A cylindrical sieve leaky liner with spiral baffles is installed in the reactor cavity, which can increase the degree of turbulence during the hydrothermal liquefaction of biomass. On the one hand, it is beneficial to material mixing, on the other hand, the solids after reaction Being trapped in the lining is beneficial to the solid-liquid separation after the reaction, which can effectively reduce the separation cost. The use of photovoltaic power generation systems to replace conventional electricity can effectively reduce production costs. The device and system of the present invention have low requirements, simple operation, less land occupation, no secondary pollution, and less investment cost, which is beneficial to efficient, clean, and high-value utilization and popularization of biomass.
Description
technical field [0001] The invention relates to the technical field of green renewable energy, in particular to a lignocellulosic biomass hydrothermal liquefaction device and a system thereof. Background technique [0002] Biomass is a carrier for storing solar energy and a recyclable organic carbon resource. Among them, lignocellulosic biomass contains cellulose (35-50wt%), hemicellulose (20-30wt%) and lignin (20-30wt%), accounting for more than 90wt% of plant-based biomass, and is the most abundant on the earth. Major renewable carbon resource. my country is a large agricultural country, with an annual crop straw output of about 900 million tons, rich in resources and broad development potential. However, due to the wide distribution of straw, the utilization rate is not high, and most of them cause air and water pollution due to unreasonable utilization, which is extremely harmful. At the same time, the currently available oil resources are increasingly depleted, and m...
Claims
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IPC IPC(8): B01J19/18C10G1/00
CPCB01J19/0053B01J19/0066B01J19/18C10G1/00C10G1/002C10G2300/1011C10G2300/1014
Inventor 颜蓓蓓王建程占军陈冠益
Owner TIANJIN UNIV