Liquefaction equipment and method for biomass liquefaction

Abstract

The invention discloses a liquefaction equipment and method for biomass liquefaction. The biomass slurry heating furnace is connected with a first reactor, and a second reactor is arranged on one side of the first reactor. The second reactor The lower part is provided with the first feeding pipe, the first reactor is connected with the first feeding pipe through the corresponding pipeline, the upper part of the second reactor is connected with the high-temperature separator, and the high-temperature separator is connected with the vacuum distiller. The separator communicates with the feed pipe of the online hydrogenation reactor through the second feed pipe, and the feed pipe of the online hydrogenation reactor communicates with a gasoline separator. There is no need for additional media such as heat-conducting oil, and some self-produced oil is used for heat conduction and swelling, which reduces production costs and separation and recovery costs; the chemical stability of biomass fuel oil is mentioned to prevent the condensation of biomass pyrolysis free radical fragments, The yield is improved; the calorific value of the oil product is increased, which can be directly used as diesel; the acidity of the oil product is reduced, and a large-scale industrialized device can be realized.

Description

technical field [0001] The invention relates to the field of agricultural straw treatment, in particular to a liquefaction equipment and method for biomass liquefaction. Background technique [0002] Straw is the general term for the stems and leaves of mature crops. It generally refers to the remaining parts of wheat, rice, corn, potatoes, rapeseed, cotton, sugar cane and other crops (usually coarse grains) after harvesting seeds. Straw is rich in nitrogen and phosphorus. , Potassium, Calcium, Magnesium and organic matter etc. At present, the straw is generally treated by burning, etc. The existing straw burning causes air pollution to the atmosphere and wastes energy at the same time. [0003] With the development of technology, straw has been treated industrially. Most of the existing technologies use water, high temperature and high pressure to process straw, which has high cost and high risk factor. It is cumbersome to use multiple reactors, or use nitrogen as an inert...

AI Technical Summary

Problems solved by technology

At present, the straw is generally treated by burning, etc. The existing straw burning causes air pollution to the atmosphere and wastes energy at the same time.

[0003] With the development of technology, straw has been treated industrially. Most of the existing technologies use water, high temperature and high pressure to process straw, which has high cost and high risk factor. It is cumbersome to use multiple reactors, or use nitrogen as an inert gas. Lysis as a carrier

The existing straw pyrolysis process has disadvantages such as high cost, difficult actual operation, long process route and large investment, and the straw is decomposed into free radical fragments during the heating process of the preheater, which is easy to coke, causing great damage to the equipment and reducing equipment cost. service life

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