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Mercury Removal of Fluctuating Ethane Feedstock in a Large Scale Production by Sulphur Impregnated Activated Carbon

机译:硫磺浸渍活性炭大规模生产中的汞去除波动乙烷原料

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The removal of mercury from entering process area is the key to safeguard aluminum brazed heat exchanger and other critical equipment in the ethylene production plant from Liquid Metal Embrittlement (LME) and amalgam corrosion. Sulphur Impregnated Activated Carbon (SIAC) is the proven technology for mercury removal. However, currently there is no specific study conducted at fluctuating ethane feedstock to monitor its functionality and performance. This study is conducted at a large scale of aging ethylene plant without Ethylene Buffer Storage Tank (EBST) which results in fluctuating feedstock upstream of mercury removal vessel. Number of experiments and data gathering were done by observing current mercury level at various process stream to determine its performance before and after installation. Analysis performed at mercury removal vessel's outlet indicates consistent decrease in adsorption capacity with an increase of temperature. The fluctuation of ethane feedstock from 35,000 kg/hr to 71,000 kg/hr also results in less adsorption efficiency of SIAC.
机译:从进入过程区域的去除是保护铝钎焊热交换器和乙烯生产厂中的其他关键设备的关键,从液态金属脆化(LME)和汞合金腐蚀中。硫浸渍活性炭(SIAC)是汞去除的证明技术。然而,目前在波动乙烷原料中没有进行具体研究,以监测其功能性和性能。该研究以大规模的老化乙烯厂进行,没有乙烯缓冲液储罐(EBST),这导致汞去除容器上游的原料波动。通过观察各种过程流的当前汞水平来完成实验和数据收集的数量,以确定安装前后的性能。在汞去除容器出口中进行的分析表明,随着温度的增加,吸附能力一致减少。从35,000 kg / hr到71,000 kg / hr的乙烷原料的波动也导致SIAC的吸附效率较少。

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