Thermal storage roller pyrolysis reactor

Abstract

The invention provides a thermal storage roller pyrolysis reactor, which can be used for efficiently treating a large amount of biomass, the heating efficiency is high, and the impurities of processed biomass are few. The thermal storage roller pyrolysis reactor comprises: a roller pyrolysis furnace, which comprises a hearth, a roller located in the hearth, and a cavity enclosed by a high thermal conductivity roller wall of the roller and a thermal insulation inner wall of the hearth; a feeding part, which is arranged at one end of the roller pyrolysis furnace and is communicated with the roller inlet; a discharging part, which is arranged at the other end of the roller pyrolysis furnace and is communicated with the roller outlet; a heat storage part, which is used for continuously transferring heat to the roller so that the biomass in the roller can be subjected to pyrolysis reaction, and comprises a heat storage material filled with the cavity; a high-temperature flue gas inlet, which is formed in the inlet side of the roller pyrolysis furnace, communicates with the heat storage part and inputs high-temperature flue gas into the heat storage part, so that the heat storage material stores heat at a high temperature; a high-temperature flue gas outlet, which is formed in the outlet side of the roller pyrolysis furnace, is communicated with the heat storage part and is used for discharging the flue gas subjected to heat exchange; and a pyrolysis gas outlet, which is formed in the discharging part.

Description

technical field [0001] The invention belongs to the technical field of renewable energy utilization, and in particular relates to a thermal storage drum pyrolysis reactor. Background technique [0002] Biomass pyrolysis technology is one of the cutting-edge technologies of biomass energy research in the world. This technology can convert wood chips and other biomass into high-quality, easy-to-storage, easy-to-transport, high-energy-density and convenient-to-use alternative liquid fuels (bio-oil) in a continuous process and factory production mode, which can not only be used directly It can be used for the combustion of existing boilers and gas turbines, and the quality of liquid fuel can be close to that of conventional power fuels such as diesel or gasoline through further improvement, and chemical products with commercial value can also be extracted from it. Compared with conventional fossil fuels, bio-oil can be regarded as a green fuel in the 21st century because of its...

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Problems solved by technology

The direct heating reactor uses the heat carrier to mix directly with the biomass, which has good heat transfer performance and large processing capacity, but there are also problems that are difficult to solve: 1. The use of a large amount of heat carrier gas results in high energy consumption and more impurities in the product. Poor material adaptability; 2. The wear resistance of solid heat carrier is poor, and the service life is not long

Indirect heating reactors, such as microwave pyrolysis reactors, electromagnetic pyrolysis reactors, etc., use microwaves or electromagnetics to heat biomass. Although there are fewer impurities, the equipment is expensive, energy consumption is high, the pyrolysis yield is low, and it cannot be scaled up. low throughput, not suitable for industrial use

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