Abstract: WGS is widely used for desulfurization in FCC facility, sulfur recovery unit and power plant thanks to its zero pressure drop and high efficiency to remove sulfur dioxide. Jet ventruri is the key equipment for the technology and has a direct impact on pressure drop and dust removal efficiency of the desulfurization system. PCNE has developed jet ventruris in 10 specifications, which are successfully used in more than 30 WGS projects, achieving good results for purification of flue gas. The sulfur dioxide content of more than 90 percent of purified flue gas is lower than 10mg/ m3 and the particle-removing rate of more than 70 percent of purified flue gas is lower than 30mg/ m3.

Key words: desulfurization and dust removal, zero pressure drop, WGS, Vemtruri

摘要： 文丘里式湿法脱硫技术由于其零压降和高效脱硫除尘一体化等特点, 被广泛应用在炼厂催化裂化装置、 硫磺回收装置、热电厂等烟气脱硫除尘工艺中。喷射式文丘里管作为其中的核心关键设备, 直接影响了脱硫系统压降、 颗粒物脱除效果等关键指标。中国石油集团东北炼化工程有限公司开发出10 种规格文丘里管, 并成功推广至30 余套湿 法脱硫项目中, 烟气净化效果良好, 净化烟气中二氧化硫浓度小于10mg/ m3, 颗粒物浓度小于30mg/ m3。

关键词: 烟气脱硫除尘; 零压降; 湿法脱硫; 文丘里管