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High-Temperature Online Reforming of Converter Gas with Coke Oven Gas

机译：转炉煤气与焦炉煤气的高温在线重整

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摘要

A large amount of by-product gas containing abundant physical heat and excessive quantity of carbon dioxide (CO_2) is generated during the iron and steel production. Through the high-temperature online reforming of the by-product gas with coke oven gas, generated physical heat and CO_2 can be completely utilized to achieve efficient use of energy and reduction of CO_2 emission, respectively, and high-quality chemical synthesis gas can be acquired simultaneously. The thermodynamic behavior of the reforming of converter gas with coke oven gas was analyzed based on Gibbs energy minimization method. The thermodynamic calculation model was proposed and utilized to describe the effect of temperature, pressure, and ratio of converter gas to coke oven gas on conversion rate of CO_2 and methane (CH_4) and ratio of H_2 to CO of the product gas. High temperature and low pressure were found to be the favorable thermodynamic condition for reforming process. Ratio of H_2 to CO of product gas was significantly influenced by initial composition of reactant gases. Moreover, the reforming reaction was investigated by performing the mixed reforming experiments under the condition of high temperature to provide theoretical and experimental basis for the realization of industrialization.
机译：钢铁生产过程中会产生大量的副产气体，其中含有丰富的物理热和过量的二氧化碳（CO_2）。通过副产气与焦炉气的高温在线重整，可以充分利用产生的物理热和CO_2，分别实现能源的高效利用和CO_2的减排，同时获得优质的化学合成气。基于焦炉煤气能量最小化方法，分析了焦炉煤气能量最小化的热力学行为。提出了热力学计算模型，并利用该模型描述了温度、压力、转炉煤气与焦炉煤气的比例对产品气中CO 2和甲烷（CH_4）转化率以及H_2与CO比例的影响。高温低压是重整过程的有利热力学条件。反应气体的初始组成对产物气中H_2与CO的比例有显著影响。此外，在高温条件下进行了混合重整实验，对重整反应进行了研究，为实现工业化提供了理论和实验依据。

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