Method and device for producing methanol with COREX fusion reduction furnace coal gas

Abstract

The invention belongs to the category of metallurgical chemical technology, in particular to a method and a device for using gas produced by a COREX smelting reduction furnace to produce a methanol. The COREX smelting reduction furnace is not only a COREX iron smelting reduction furnace but also a gas making furnace on a methanol production line. A methanol plant uses the gas produced by the COREX smelting reduction furnace to produce the methanol; the purge gas produced in the synthesis process of the methanol is resent to a steel plant as fuel after hydrogen extraction. A gas pipeline of the COREX smelting reduction furnace is connected with the methanol plant and a purge gas pipeline of the methanol plant is connected with a hydrogen making station, and an exhaust gas pipeline is connected with a palletizing plant. Aiming at the problem of shortage of petroleum resources in China, the invention uses the gas produced by the COREX smelting reduction furnace to produce the methanol which can not only be taken as a chemical material but also can be burned with a gasoline or made into the gasoline, thereby being beneficial to improvement of the energy structure of China. Simultaneously, the invention is also a resource of joint production of steel and coal chemical industry, is the most economical circular economy technique in energy utilization, and is the innovative technique of cleaning production.

Description

technical field [0001] The invention belongs to the category of metallurgical chemistry technology, in particular to a method and device for producing methanol from COREX smelting reduction furnace gas. Background technique [0002] Methanol is a widely used basic chemical raw material and an excellent clean fuel. Among the basic organic chemical raw materials, methanol consumption is second only to ethylene, propylene and benzene. It is a bulk organic chemical raw material. It can be processed into organic chemical There are more than 100 kinds of products. At present, the raw material gas required for the methanol synthesis process is to use coal gas, natural gas and coke oven gas as raw material gas to produce methanol. [0003] COREX smelting reduction furnace is a new smelting reduction ironmaking process that has been put into industrial scale production. The development of this process began in the late 1970s and has now become a new frontier technology for ironmaki...

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Problems solved by technology

As a fuel, its utilization value is low, waste of resources and increase the cost of molten iron

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