Double-helix pyrolysis reactor based on pyrolytic carbon internal circulation enhanced heat transfer

A pyrolysis reactor and enhanced heat transfer technology, applied in the direction of combined direct and indirect heating dry distillation, special form of dry distillation, biofuels, etc., can solve the problems of poor heat transfer performance, difficult to scale up, etc., to promote mixing, change production The effect of high efficiency and large biomass treatment capacity

Inactive Publication Date: 2020-06-16
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Using an external heat source to heat the reactor, the reactor transfers heat to the biomass, the material adaptability is good, and the solid residence time is adjustable, but the heat transfer performance is poor and it is difficult to scale up

Method used

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  • Double-helix pyrolysis reactor based on pyrolytic carbon internal circulation enhanced heat transfer
  • Double-helix pyrolysis reactor based on pyrolytic carbon internal circulation enhanced heat transfer
  • Double-helix pyrolysis reactor based on pyrolytic carbon internal circulation enhanced heat transfer

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the accompanying drawings.

[0025] Such as figure 1 As shown, a double-helix pyrolysis reactor based on internal circulation of pyrolytic carbon to enhance heat transfer in the present invention has a horizontal cylindrical outer spiral drum 3 as the main body, and a pyrolysis gas outlet is provided at the upper left end of the outer spiral drum 3 1. A feed inlet 5 is provided at the upper right end of the outer spiral drum 3, a pyrolytic carbon collection box 12 is provided at the lower end of the right part, an electric heating device 2 is installed outside the outer spiral drum 3, and three The support frame 10 supports the entire outer spiral drum 3; inside the outer spiral drum 3, there are two coaxial rotating screws with opposite blade helical directions, that is, the outer screw 6 and the inner screw 7 are arranged through the outer spiral drum 3 from left to right, wherein the inner scre...

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Abstract

The invention discloses a double-helix pyrolysis reactor based on pyrolytic carbon internal circulation enhanced heat transfer, and belongs to the technical field of renewable energy utilization, wherein the double-helix pyrolysis reactor adopts a horizontal cylindrical outer helix drum as a main body, a pyrolysis gas outlet is formed in the upper end of the left part of the outer helix drum, a feeding hole is formed in the upper end of the right part of the outer helix drum, a pyrolytic carbon collecting box is arranged at the lower end of the right part of the outer helix drum, and an electric heating device is arranged on the outer side of the outer helix drum, and three support frames arranged at the lower part of the outer helix drum are used for supporting the outer helix drum; two coaxial rotating screw rods with opposite blade spiral directions, namely an outer screw rod and an inner screw rod, are arranged in the outer helix drum, a pyrolytic carbon exchange port is formed inthe left side of an inner helix drum, a carbon circulating port is formed in the lower end of the right side of the inner helix drum, and the pyrolytic carbon collecting box is arranged at the lower end of the right side of the outer helix drum; materials are conveyed through the spiral structure, the heat transfer performance of the device is improved, the biomass treatment capacity per unit volume is increased, and a solution is provided for the heat source problem of a movable pyrolysis device.

Description

technical field [0001] The invention provides a double-helix pyrolysis reactor based on internal circulation of pyrolytic carbon to enhance heat transfer, and belongs to the technical field of renewable energy utilization. Background technique [0002] Biomass energy density is low, the distribution is scattered, and the cost of its collection, transportation and storage is high, which greatly limits the development and utilization of biomass energy. Biomass pyrolysis is a potential biomass energy utilization technology, but the existing biomass pyrolysis processes are all fixed processes, resulting in half of the cost of biomass pyrolysis process being consumed in raw material collection, storage and transportation. If the biomass raw material can be converted into bio-oil in a small-scale pyrolysis device that is easy to move, and then the bio-oil is transported to the intermediate processing node for large-scale centralized refining, the collection radius of biomass raw m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B53/02C10B51/00
CPCC10B51/00C10B53/02Y02E50/10Y02P20/133
Inventor 肖睿曾德望邱宇马莉
Owner SOUTHEAST UNIV
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