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酸性气制硫磺与制硫酸工艺对比分析 被引量:3

Comparison and analysis of sulfur and sulphuric acid production with sour gas
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摘要 介绍了炼厂酸性气分别采用CLAUS+SCOT法制硫磺和WSA湿法制硫酸的工艺流程和特点,以潜在硫含量为30 kt/a的含H2S酸性气为原料,对制硫磺和制硫酸生产装置的公用工程消耗、"三废"排放、建设投资、占地面积及经济效益进行了对比。结果表明,处理同等量的酸性气,采用WSA湿法制硫酸工艺技术和采用CLAUS+SCOT法制硫磺工艺技术,能耗分别为-161.1 kg标油/t硫酸、-78.2 kg标油/t硫磺;排放烟气中SO2质量浓度分别为79.7,84.3 mg/m^3;总硫回收率分别为99.97%,99.98%;占地分别为3 588,5 940 m^2;年产值分别为4 724.8,2 578.4万元。WSA湿法制硫酸工艺在各方面均有一定的优势,但企业应综合考虑工厂产品结构、周边硫酸市场容量、技术水平等因素,做好市场需求分析,选择适合自身的工艺技术。 The process flow and characteristics of CLAUS+SCOT sulfur process and WSA wet sulphuric acid process in refinery are introduced. Taking acid gas containing H2S with a potential sulfur content of 30,000 TPY as feedstock, the consumption of public works, discharge of "three wastes", construction investment, area occupied and economic benefits of sulfur and sulfuric acid production plants are compared in detail. The results show that the energy consumption of WSA wet sulfuric acid process and CLAUS+SCOT sulfur process are-161.1 kg standard oil/t sulfuric acid and-78.2 kg standard oil/t sulfur, respectively, the mass concentration of SO2 in the flue gas is 79.7 mg/m^3 and 84.3 mg/m^3, respectively, and the total sulfur recovery is 99.97% and 99.98%, respectively. The occupied area is 35,885,940 m^2, and the annual output value is 47.248 million yuan and 25.784 million yuan, respectively. WSA wet sulphuric acid process has certain advantages in all aspects, but enterprises should comprehensively consider factors such as product structure, capacity of surrounding sulphuric acid market, technological level and so on, do a good job of market demand analysis, and select suitable process technology.
作者 牛春林 Niu Chunlin(SINOPEC Guangzhou Engineering Co.,Ltd.,Guangzhou,Guangdong 510620)
出处 《炼油技术与工程》 CAS 2019年第10期25-29,45,共6页 Petroleum Refinery Engineering
关键词 酸性气 硫磺 硫酸 CLAUS+SCOT WSA acid gas sulphur sulphuric acid CLAUS+SCOT WSA
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