Premium
Alternative technology for reducing bromine index value of industrial benzene feedstock
Author(s) -
Suriye Kongkiat
Publication year - 2016
Publication title -
asia‐pacific journal of chemical engineering
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.348
H-Index - 35
eISSN - 1932-2143
pISSN - 1932-2135
DOI - 10.1002/apj.2047
Subject(s) - bromine , raw material , index (typography) , benzene , value (mathematics) , pulp and paper industry , waste management , environmental science , chemistry , organic chemistry , mathematics , engineering , computer science , statistics , world wide web
Alternative technology for reducing the bromine index value, which represents trace impurity of unsaturated hydrocarbon, in the industrial benzene feedstock was systematically developed in this study using the adsorption approach. Effects of different physicochemical properties of MCM‐22, Na‐Y, HY, and ZSM‐5 on the reduction of the bromine index value were investigated under ambient temperature and pressure. It was found that the molecular sieve approach by using the medium pore size zeolite and strong interaction between the adsorbent and unsaturated hydrocarbon by using the lower SiO 2 :Al 2 O 3 molar ratio were the key factors for designing the right adsorbent for this industrial application. Most of unsaturated hydrocarbon impurity was finally removed from the industrial benzene feedstock resulting in nearly zero of the bromine index value after passed through the right adsorbent with maximum adsorption capacity of 78.6 wt%. Adsorption's active site was also determined in this study revealing that this adsorption technology was active site insensitive process. This adsorption technology has been started up in the commercial scale by SCG Chemicals since 2010 which can overcome various drawbacks of the existing technology. © 2016 Curtin University of Technology and John Wiley & Sons, Ltd.