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Method and apparatus for producing direct reduced iron utilizing a catalytical pretreatment of hydrocarbons as a source of reducing gas

机译:利用碳氢化合物的催化预处理作为还原气体的源泉的直接减少铁的方法和装置

摘要

A method and apparatus for producing direct reduced iron using a pre-treated make-up gas as a reducing agent in a direct reduced iron reactor are provided. The method involves pre-treating a stream of make-up gas containing heavy hydrocarbons by subjecting the stream to low temperature adiabatic reforming at a temperature between 300° C. and 600° C., prior to using the stream of make-up gas as a reducing agent for producing direct reduced iron. The method also involves adjusting the humidity content of the stream of make-up gas after the low temperature adiabatic reforming by bypassing the stream to selectively split it into a first part of the stream of make-up gas and a second part of the stream of make-up gas, subjecting the first part to water separation, and then mixing the first part with the second part to obtain a reducing stream to be sent to direct reduced iron production.
机译:提供了一种用预处理的化妆气体作为在直接还原铁反应器中的还原剂生产的用于生产直接还原铁的方法和装置。 该方法包括通过在使用化妆气流之前,在300℃和600℃的温度下,通过在300℃和600℃的温度下进行含有重质烃的化妆气流进行预处理含有重烃的化妆气流。 一种用于生产直接铁的还原剂。 该方法还涉及在低温绝热重整之后调节化妆气流的湿度含量,通过绕过物流选择性地将其分成化妆气流的第一部分和流的第二部分之后 化妆气体,使第一部分进行水分离,然后将第一部分与第二部分混合以获得待发送的还原流以直接减少铁生产。

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