Adsorption behaviour of normal paraffins in a fixed bed adsorber containing 5 Å molecular sieves

被引：0

作者：

Liu, Jichang ^{[1
]}

Shen, Benxian ^{[1
]}

Sun, Hui ^{[1
]}

机构：

[1] Petroleum Processing Research Center, East China University of Science and Technology

来源：

Adsorption Science and Technology | 2006年 / 24卷 / 04期

关键词：

D O I：

10.1260/026361706779319643

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学科分类号：

摘要：

The adsorption process for separating normal paraffins from naphtha using 5 Å molecular sieves was studied with the purpose of optimizing the utilization of naphtha and providing a proper allocation of the feeds for the steam cracking and catalytic reforming processes. The separation efficiency of the normal paraffins was > 99.9% while their purity in the desorption oil could reach 98.2%. The effects of adsorption temperature and space velocity on the adsorption process were investigated. The adsorption capacity was large and the adsorption mass-transfer zone was short when the adsorption temperature was low in the range of 180-340°C and the feed space velocity was small in the range of 30-300 h-1. The adsorptivity of the normal paraffins improved with increasing carbon number. Long-chain normal paraffins had a notable displacement desorption relative to short-chain normal paraffins.

引用

页码：311 / 320

页数：9