克劳斯法硫磺回收工艺技术发展评述
Review on Development of Claus Process Used for Sulfur Recovery
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- 引用格式:
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陈赓良.克劳斯法硫磺回收工艺技术发展评述[J].天然气与石油,2013,31(4):0.doi:
.Review on Development of Claus Process Used for Sulfur Recovery[J].Natural Gas and Oil,2013,31(4):0.doi:
- DOI:
- 作者:
- 陈赓良
- 作者单位:
- 中国石油西南油气田公司天然气研究院
- 关键词:
- 克劳斯法；硫磺回收；尾气处理；Lo-Cat法；氧化还原法脱硫；自循环式环流反应器
Review； Development； Claus process； Sulfur recovery
- 摘要:
- 要：由醇胺法脱硫、克劳斯法硫磺回收、配套尾气处理技术组成克劳斯法硫磺回收工艺技术路线，经70余年的技术开发，已成为从含硫天然气和炼厂气中回收硫磺最重要的技术路线。2011年世界硫磺总产量为5 100×104 t，其中96 %以克劳斯法生产。克劳斯法工艺流程根据其生成SO2的方式分为三类：直流法、分流法和直接氧化法。其选择主要取决于原料酸气的H2S含量，但装置规模也有一定影响。原料天然气中潜硫含量在0.5 t/d以下时，不论酸气中H2S浓度如何，原则上不使用克劳斯法制硫工艺回收硫磺，推荐采用非再生型脱硫技术。近年来，克劳斯法硫磺回收工艺技术的进步主要反映在选吸脱硫及酸气提浓、氧基硫磺回收工艺、Lo-Cat法氧化还原法脱硫及自循环式环流反应器和各种配套的尾气处理方法上。
Technological process combined by propane amine desulfurization/Claus process of sulfur recovery/tail gas treatment technology has become the most important process for sulfur recovery in sour gas and refinery gas purification after continuous improvement in over 70 years. In 2011，total sulfur output all over the world has reached up to 5100×104 t and its 96 % is obtained by using Claus process. This process can be sorted into such three types as straight Claus sulfur recovery process，flow separation process and direct oxidation method and type selection mainly depends on H2S content in feed gas and capacity of sulfur recovery unit shall be considerated suitably. If latent sulfur content in feed gas is below 0.5 t/d，no matter H2S concentration in sour gas is high or low，Claus sulfur recovery process is not used for sulfur recovery by principle and non-renewable type desulfurization technology is recommended. In recent years，Claus sulfur recovery process has been improved in such issues as selective absorption desulfurization process and acid gas stripping process，oxygroup sulfur recovery process，Lo-Cat oxidation-reduction desulfurization method and self-circulating loop reactor and different tail gas treatment methods.
