System and method for biomass fractional conversion co-production of oil and gas with solar heating

Abstract

Systems and methods for solar-powered biomass fractional conversion and co-production of oil and gas. The system includes pyrolysis and gasification reaction unit, solar heating unit and oil gas purification and separation unit; solar heating unit includes trough solar molten salt heating unit and tower solar biomass ash heat carrier heating unit; pyrolysis and gasification The reaction unit includes a falling bed pyrolysis reaction section and a fluidized bed gasification reaction section; the falling bed pyrolysis reaction section is provided with a feed inlet, a carrier gas inlet, a spiral heat pipe, and a pyrolysis product outlet; the inlet end of the spiral heat pipe and The outlet ports are respectively located on the upper side wall and the lower side wall of the falling bed pyrolysis reaction section; the fluidized bed gasification reaction section is equipped with a circulating biomass ash heat carrier inlet, ash discharge port, gasification agent inlet and gas outlet; The purification separation unit includes a gas-liquid separator connected to the gas outlet. The system and method can utilize the high temperature achieved by solar heat collection as a heat source for biomass pyrolysis and gasification.

Description

technical field [0001] The invention belongs to the field of clean energy utilization, and in particular relates to a system and a method for biomass graded conversion co-production of oil and gas for solar heating. Background technique [0002] Energy is the material basis and important guarantee for the development and progress of human society. At present, non-renewable energy such as coal and oil dominates my country's energy consumption structure. With the excessive consumption of energy and the environmental problems caused by the utilization of non-renewable energy, it is urgent to develop and utilize renewable energy to replace traditional fossil energy, and gradually increase the proportion of renewable energy in energy consumption. [0003] Biomass has attracted extensive attention from researchers due to its wide variety, abundant reserves and wide distribution. The fractional conversion of biomass through pyrolysis and gasification can not only produce biomass ...

AI Technical Summary

Problems solved by technology

During the actual operation of biomass pyrolysis and gasification, it is usually necessary to introduce air to burn and react with some biomass to release heat for pyrolysis and gasification reactions, which not only causes waste of energy, but also increases CO 2 emissions

Images