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由于多种外部因素的影响,硫酸工艺及设备技术又有了新的发展。除了永恒的环境和经济因素促使所有的硫酸厂提高效率,减少尾气排放以外;在冶金技术方面如闪速熔炼技术的开发促使冶炼气制酸装置须能处理浓度更高的原料气,这使得冶炼酸在世界硫酸总产量中所占比例越来越大。 目前使用含铯催化剂可使SO_2转化率高达99.9％,同时,主要设备如转化器和换热器采用新的设计方法和新的材料规格,使它们能适应由于使用高浓度原料气所造成的非常苛刻的操作条件。由于上述改进,以及其它在气体净化领域中的技术进步,现在冶炼气制酸装置生产的硫酸的纯度可与硫酸制酸装置生产的硫酸相媲美。 上述技术开发成果已有许多项在孟山都的两套冶炼气制酸工程中得到了应用。
Due to the influence of various external factors, the sulfuric acid process and equipment technologies have undergone new development. In addition to the eternal environmental and economic factors that drive all sulphuric acid plants to increase efficiency and reduce tailpipe emissions, the development of metallurgical technologies such as flash smelting technology has prompted the smelter gas acid plant to be able to handle higher concentrations of feed gas, which makes smelting The proportion of acid in the world’s total production of sulfuric acid is increasing. The current use of ruthenium-containing catalysts has resulted in 99.9% conversion of SO 2 . At the same time, major equipment such as converters and heat exchangers have adopted new design methods and new material specifications, enabling them to adapt to the very high levels of raw gas used. Harsh operating conditions. Due to the above improvements, and other technological advances in the field of gas purification, the purity of the sulfuric acid produced by the smelting gas-based acid plant can now be comparable to the sulfuric acid produced by the sulfuric acid plant. Many of the above technical development achievements have been applied to two sets of smelter gas acid production projects at Monsanto.