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Melt reduction iron-smelting dimethyl ether production and power generation combined production method and installation

A dimethyl ether and combined technology, which is applied in the fields of smelting reduction ironmaking, dimethyl ether production and utilization of waste heat for power generation, can solve problems such as failure to propose specific solutions.

Inactive Publication Date: 2003-02-05
CENT IRON & STEEL RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

While using the smelting reduction process gas to produce sponge iron, voestalpine also proposed the idea of ​​using smelting reduction ironmaking process gas to synthesize chemical raw materials; Japan once proposed the technical idea of ​​using smelting reduction ironmaking process gas for clean power generation. However, none of the above two have been able to propose a specific plan and implementation

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  • Melt reduction iron-smelting dimethyl ether production and power generation combined production method and installation
  • Melt reduction iron-smelting dimethyl ether production and power generation combined production method and installation

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Embodiment Construction

[0067] Three batches of tests were carried out by adopting the co-production method and device in which the smelting reduction ironmaking, dimethyl ether production and power generation are combined.

[0068] Firstly, the ore, flux, coal and other raw materials and oxygen are sent to the smelting reduction device according to a certain proportion from the silos 01 and 02, and the oxygen delivery pipe 03 respectively, and the molten iron is discharged from the molten iron outlet 13. At the same time, a large amount of gas is produced. The gas composition, gas generation and iron production are shown in Table 1. The produced coal gas is dedusted by dedusters 06 and 15, and after heat exchange by heat exchanger 17 and dedusting and desulfurization by synthesis gas purification tower 19, it is compressed by compressor 21 to make it have a certain pressure from the dimethyl ether synthesis unit S3. The bottom of the slurry bed reactor 26 enters, and the catalyst and the inert solv...

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Abstract

The present invention relates to a method which adopts the gas produced in the melt reducing iron-smelting process, through the processes of heat exchange, dust-removing, desulfuration, pressurizing, adding catalyst and inert solvent and utilizing slurry bed reactor to produce dimethyl ether and utilizes waste heat to make power generation. Said system method includes melt reducing iron-smelting equipment, synthesis gas cleaning equipment, dimethyl ether synthesijs equipment, product separation equipment and power generator equipment.

Description

technical field [0001] The invention belongs to the fields of metallurgy, chemical industry and energy, and particularly relates to smelting reduction ironmaking, dimethyl ether production and utilization of waste heat to generate electricity. Background technique [0002] Smelting reduction is an advanced ironmaking process technology. It can not only solve the two major problems of coke shortage and environmental pollution that the iron and steel industry is facing today, but also greatly shorten the process flow, increase productivity, and reduce Infrastructure investment and production costs increase the flexibility of production (ZL99122119.2, ZL99122120.6, ZL99122121.4 and ZL00238120.6). While the smelting reduction ironmaking process produces molten iron, it also by-produces a large amount of gas with high calorific value. How to use these gas and related waste heat to achieve the purpose of comprehensive joint production has always been a subject of people's explora...

Claims

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Application Information

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IPC IPC(8): C07C41/01C21B11/02
Inventor 殷瑞钰金涌刘浏王金福干勇黎汉生曾加庆齐渊洪
Owner CENT IRON & STEEL RES INST
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