A method for recovering exhaust gas from a silicon carbide closed furnace for power generation and reuse

Abstract

The invention discloses a method for recycling power generation and reuse of silicon carbide sealed furnace exhaust. The method for recycling power generation and reuse of the silicon carbide sealed furnace exhaust includes a step S1 of silicon carbide exhaust cooling and collection, a step S2 of silicon carbide exhaust dedusting, a step S3 of silicon carbide exhaust pressure test, a step S4 of silicon carbide exhaust pressure regulation, a step S5 of silicon carbide exhaust content detection, a step S6 of silicon carbide exhaust storage, a step S7 of silicon carbide exhaust pressurization, astep S8 of exhaust conversion and a step S9 of exhaust power generation. The processing process of the method is different from a conventional process of direct venting of exhaust of an open type silicon carbide smelting furnace. The process enables the silicon carbide exhaust to be all recycled; after treatment, the exhaust can be all recycled and meet the requirement of power generation throughgas in a power plant, plenty of standard coal can be saved, the pollution to the environment is prevented, and the current development needs are met.

Description

technical field [0001] The invention relates to the technical field of environmental protection, in particular to a method for recovering tail gas from a silicon carbide closed furnace for power generation and reuse. Background technique [0002] Silicon carbide (SiC) is smelted at high temperature in a resistance furnace using raw materials such as quartz sand, petroleum coke (or coal coke), wood chips (salt is required to produce green silicon carbide), and the like. Silicon carbide also exists in nature as a rare mineral, moissanite. Silicon carbide is also called moissanite. When silicon carbide is used, a large amount of exhaust gas will be produced during the combustion process, and the airtight silicon carbide flue gas contains more than 80% carbon monoxide and hydrogen. At present, the silicon carbide flue gas of the known open furnace is usually discharged directly without treatment, which pollutes the atmosphere, wastes resources, and the effective gas in the tai...

AI Technical Summary

Problems solved by technology

At present, the silicon carbide flue gas of the known open furnace is usually discharged directly without treatment, which pollutes the atmosphere, wastes resources, and the effective gas in the tail gas is not utilized.