Fluidized bed reactor for preparing bio-oil from molten salt biomass, reaction system and application of fluidized bed reactor

Abstract

The invention discloses a fluidized bed reactor for preparing bio-oil by using molten salt biomass, which comprises a first chamber and a second chamber, and the first chamber is communicated with the second chamber through a channel structure; the first cavity is provided with a reaction chamber, a biomass particle feeding device, a high-temperature molten salt chamber, a molten salt circulating device, a first discharge port and a second discharge port, the biomass particle feeding device and the high-temperature molten salt chamber are both communicated with the reaction chamber, the high-temperature molten salt chamber is arranged at the upper part of the reaction chamber, the first discharge port is located at the lower part of the reaction chamber, and the second discharge port is located at the lower part of the reaction chamber; the second discharge port is positioned at the upper part of the reaction chamber. According to the fluidized bed reactor, molten salt is used as a fluidized carrier and a heat carrier for cyclic utilization, the fluidized bed is used as a pyrolysis reactor, biomass is pyrolyzed and gasified in a high-temperature environment, and then the biomass is condensed to prepare biomass oil and combustible gas for utilization.

Description

technical field [0001] The invention belongs to the technical fields of waste resource utilization, oilfield ground gathering and transportation and environmental treatment, and particularly relates to a fluidized bed reactor for producing biological oil by utilizing molten salt biomass, a reaction system and applications thereof. Background technique [0002] Biomass is an important renewable energy, mainly agricultural waste and wood waste, widely distributed and huge. Biomass has the following characteristics: (1) Renewable; (2) Low pollution, biomass sulfur content, nitrogen content is low, SO produced in the combustion process 2 , NO 2 Low, when biomass is used as fuel, the net carbon dioxide emission is close to zero, which can effectively reduce the greenhouse effect; (3) Wide distribution, biomass gasification not only reduces the environmental pollution caused by biomass burning, Moreover, the utilization effect of biomass is improved, and an effective way is prop...

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Problems solved by technology

[0006] The technical problem solved by the present invention is that the pyrolysis gasification efficiency of the fixed bed biomass gasification reactor in the prior art is low, the heat loss of the high-temperature discharged particles is large, and the high-pressure drop bed material of the fluidized bed biomass gasification furnace brings high energy. Loss and local high-temperature coking problems, a fluidized bed reactor for producing bio-oil from molten salt biomass is provided, using molten salt as a fluidized carrier and heat carrier for recycling, and the fluidized bed is a pyrolysis reactor. Biomass is pyrolyzed and gasified in a high-temperature environment, and then condensed to produce biomass oil and combustible gas for utilization

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