System for measuring biomass thermal conversion gas and detection method

Abstract

The invention discloses a system for measuring biomass thermal conversion gas, and belongs to the technical field of biomass thermal conversion. Comprising a gas supply control unit, a thermal conversion reaction unit, a condensation purification unit and a gas product analysis unit, the gas supply control unit comprises a gas supply part and a flow control part, the thermal conversion reaction unit comprises a thermal reaction device, a transmission device is arranged on the thermal reaction device, and the thermal reaction device is connected with downstream equipment through the transmission device. The condensation purification unit comprises a gas collection bottle group; the invention also provides a detection method for the biomass thermal conversion gas. The thermal conversion device disclosed by the invention is simple to operate and high in working efficiency, can meet the requirements of biomass pyrolysis and gasification experiments, realizes rapid quantitative determination of index gas in pyrolysis and gasification processes, and can be used for basic research of the biomass pyrolysis and gasification processes.

Description

technical field [0001] The invention belongs to the technical field of biomass thermal conversion, and more particularly relates to a system and a detection method for measuring biomass thermal conversion gas. Background technique [0002] At present, my country's energy status is in a state of long-term contradictions in which coal and other fossil energy reserves are decreasing and energy demand is increasing. Low-sulfur and low-carbon biomass resources are one of the ideal alternative energy sources we seek. Biomass resources mainly include various naturally growing plants and organic solid wastes generated by human activities, such as trees and herbaceous plants, waste wood, agricultural and industrial waste, municipal waste, animal manure, waste wood and organic sludge. Biomass energy is a renewable energy formed by biomass converting carbon dioxide and water in the environment into carbohydrates through photosynthesis. It has the advantages of short growth cycle, low c...

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Problems solved by technology

[0004] The current biomass thermal conversion platform often has the following defects: when the biomass is instantaneously pyrolyzed and gasified, the biomass reaction temperature cannot be guaranteed to be equal to the system set temperature; Analyze the concentration of the components generated by decomposing gasification gas products; in the initial stage of pyrolysis and gasification, the tiny particles formed by the rapid carbonization of the biomass surface will quickly leave the reactor along with the gas phase products, and these carbonized tiny particles and the gas phase products have not fully reacted , resulting in a decrease in test accuracy; the gas purification part of the biomass thermal conversion platform is not effective, that is, the tar cannot be effectively removed in the pyrolysis gasification experiment, and it is easy to cause blockage of downstream equipment

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