Device and method for preparing biological crude oil through biomass continuous hydrothermal liquefaction

A technology for hydrothermal liquefaction and bio-crude oil, applied in chemical instruments and methods, preparation of liquid hydrocarbon mixtures, chemical/physical/physicochemical processes, etc., can solve problems such as high cost and difficult product separation, and achieve low cost and reduced The effect of cost and simple structure

Active Publication Date: 2019-10-25
CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] An object of the present invention is to provide a method for preparing bio-crude oil by continuous hydrothermal liquefaction of biomass, which can solve the problems o

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  • Device and method for preparing biological crude oil through biomass continuous hydrothermal liquefaction

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Embodiment 1

[0108] The device for preparing bio-crude oil by continuous hydrothermal liquefaction of biomass of the present invention is used to process microalgae materials. Among them, the moisture content of the biomass of the microalgae material is 80%, the reaction temperature of hydrothermal liquefaction is 285°C, the system pressure is 9.0MPa, and the reaction time is 20 minutes. After 10 hours of stable operation of the reactor, 52.0% of crude oil can be obtained. The state is stable, and the fluctuation range of temperature and pressure is not obvious.

Embodiment 2

[0110] The device for preparing bio-crude oil by biomass continuous hydrothermal liquefaction of the present invention is used to process animal feces materials. Among them, the water content of animal manure is 86%, the reaction temperature of hydrothermal liquefaction is 300°C, the system pressure is 10.8MPa, and the reaction time is 30 minutes. After 10 hours of stable operation of the reactor, 60.2% of crude oil can be obtained, and the operation state is stable. The fluctuation range of temperature and pressure is not obvious.

Embodiment 3

[0112] The device for preparing bio-crude oil by biomass continuous hydrothermal liquefaction of the present invention is used to process kitchen waste materials. Among them, the water content of kitchen waste is 89%, the reaction temperature of hydrothermal liquefaction is 320°C, the system pressure is 12.8MPa, and the reaction time is 45 minutes. After 8 hours of stable operation of the reactor, 59.2% of crude oil can be obtained. Stable, temperature and pressure fluctuation range is not obvious.

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Abstract

The invention belongs to the field of biomass energy utilization, and particularly relates to a device and method for preparing biological crude oil through biomass continuous hydrothermal liquefaction. The device comprises a dual hydraulic cylinder feeding system (5), a material stirring tank (2), a pre-heating reactor (6), a hydrothermal liquefaction reactor (10), a product collecting kettle (23), a back pressure valve (15), a filter (22), a gas, liquid and oil separator (17), a circulating water pipeline (42) and a control element. The feeding system of the device adopts a mode of a dual hydraulic cylinder system and a high-pressure pump combined, the generality of raw materials and the pumping efficiency can be improved, and the cost of the feeding system is lowered. According to the method, the product separation effect is good, the experiment safety is improved, products can be efficiently and continuously separated, and additional use of an organic reagent is not needed; and theseparation device is simple in structure and low cost, and can be widely applied to continuous separation of the biomass hydrothermal liquefaction products.

Description

technical field [0001] The invention belongs to the field of biomass energy utilization, in particular to a method and device for preparing bio-crude oil through continuous hydrothermal liquefaction of biomass. Background technique [0002] Biomass hydrothermal liquefaction (Hydrothermal liquefaction) uses biomass such as microalgae, crop straw, tree branches and leaves, livestock and poultry manure, kitchen waste, municipal solid waste and energy plants as raw materials, and uses water as the reaction solvent. It is a technology for rapidly converting biomass into bio-crude oil under the reaction temperature and pressure of 450°C and 5-28MPa. Bio-crude oil is a mixture of complex organic components with extremely high carbon content and properties similar to crude oil produced by hydrothermal liquefaction of biomass. Hydrothermal liquefaction technology prepares bio-crude raw materials without drying, and can directly undergo hydrothermal reaction to avoid drying energy co...

Claims

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Application Information

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IPC IPC(8): B01J19/18B01J19/00B01J19/20C10G1/00C11B1/04C11B1/00C11B3/00
CPCB01J19/0013B01J19/18B01J19/20C10G1/00C10G1/002C10G1/008C10G2300/1011C11B1/00C11B1/04C11B3/008
Inventor 刘志丹李虎岗朱张兵卢建文孔德亮张源辉
Owner CHINA AGRI UNIV
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