Ultra-critical gasification device and method

Abstract

The invention relates to an ultra-critical gasification device, which comprises an ultra-critical gasification furnace, an ultra-critical gasification furnace heat exchanging device and a hearth usedfor gasifying materials. The heat exchanging device and the hearth are communicated, the heat exchanging device is provided with a material inlet and a material outlet, the material inlet is used to feed the materials before gasification, the material outlet is used to discharge the materials after gasification, the material inlet of the heat exchanging device is communicated with the material outlet through the hearth, the material inlet and the material outlet are both exposed from the ultra-critical gasification furnace, the hearth is provided with an oxygen spraying pipe used to input an oxidant and a gas spraying pipe used to input combustible gas, and an igniting device used to ignite is arranged between an end of the oxygen spraying pipe and an end of the gas spraying pipe in the hearth. The invention also relates to an ultra-critical gasification method, so that a preheating system, an ultra-critical water medium heating system and the gasification system are integrated, effective insulation measures are taken to save energy, conditions for realizing ultra-critical gasification are achieved to the most.

Description

technical field [0001] The invention relates to a gasification device and method, in particular to a supercritical gasification device and method. Background technique [0002] Material gasification is an important way of people's life and production in the world, especially in the field of energy. Due to the large population growth and the rapid economic development, the energy industry dominated by coal and oil has brought immeasurable negative impact on the global environment. , which is mainly reflected in the fact that carbon is difficult to obtain a virtuous cycle, which leads to global warming, which in turn leads to frequent natural disasters. At the same time, the pollution of the natural environment that people rely on for survival tends to deteriorate seriously. Therefore, the clean utilization of coal and the acquisition of clean energy to replace petroleum are important major problems to be solved by mankind. There are many methods for gasifying coal and agricu...

AI Technical Summary

Problems solved by technology

Limited to the connection between the material preheating system, the supercritical water medium heating system, the oxidant preheating system and the reactor, etc. are too complicated, and the material requirements of the equipment are very high. Not only the equipment construction and production operation costs are high, but also lead to the overall System operation is very unreliable

Images