Liquefaction equipment and method for biomass liquefaction

Abstract

The invention discloses liquefaction equipment and method for biomass liquefaction. A biomass pulping heating furnace is communicated with a first reactor, a second reactor is arranged on one side ofthe first reactor, a first conveying pipe is arranged at the lower part of the second reactor, the first reactor is communicated with the first conveying pipe through a corresponding pipeline, the upper part of the second reactor is communicated with a high-temperature separator, the high-temperature separator is communicated with a reduced pressure distillator, the high-temperature separator is communicated with a feeding pipe of an online hydrogenation reactor through a second conveying pipe, and the feeding pipe of the online hydrogenation reactor is communicated with a gasoline separator.Extra media such as heat conduction oil are not used, and part of self-produced oil is used for heat conduction and swelling, so that the production cost and the separation and recovery cost are reduced. The chemical stability of biomass fuel oil is improved, condensation of biomass pyrolysis free radical fragments is prevented, and the yield is increased. The heat value of oil is increased and the oil can be used as diesel oil directly. The acidity of the oil is reduced and a large-scale industrial 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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