“Perhaps I'm old and tired, but I always think that the chances of finding out what really is going on are so absurdly remote that the only thing to do is to say hang the sense of it and just keep yourself occupied.” -- Douglas Adams (British comic Writer, 1952-2001)
Most organizations of any size these days subscribe to one or more online databases like ScienceDirect (www.sciencedirect.com) and EbscoHost Academic.
Most organizations also enable remote access to the corporate network. This is important. You need to be able to access the network when you are on the road.
If you have remote access, and if your organization subscribes, remember that you also have remote access to the subscribed databases.
Today’s tip … when on travel and in search of technical information, go beyond Google … go to your subscribed databases.
Then you will be able to find items like the following on your handheld …
Fuel Processing Technology, Volume 91, Issue 11, November 2010, Pages 1731-1735
The performance of solid phosphoric acid catalysts and macroporous sulfonic resins on gasoline alkylation desulfurization
Benshuai Guo (a), Rong Wang (a) and Yonghong Li (a), (b)
a Key Laboratory for Green Chemical Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China
b National Engineering Research Center for Distillation Technology, Tianjin 300072, China
Abstract
Sulfur removal has received increasing attention in recent years primarily for environmental protection purpose. As an attractive technology in the case of gasoline, OATS (olefinic alkylation of thiophenic sulfur) proposed to separate sulfur compounds by distillation after being weighed down by alkylation with olefins in the feed. In this paper, alkylation reactions of thiophenic compounds were studied over solid phosphoric acid catalysts (SPAM and SPAS using MCM-41 and Silicalite-1 zeolite as supporters respectively) and macroporous sulfonic resins (including NKC-9, D005-2 and Amberlyst 35) with model gasoline and FCC (fluid catalytic cracking) gasoline. Results showed that macroporous sulfonic resins showed better performance than solid phosphoric acid catalysts under milder conditions in both feeds. Among the resins, Amberlyst 35 was the most suitable catalyst for the application of catalytic distillation for its good performance at the temperature range of 353–413 K in FCC gasoline. However, the selectivity of isoamylene dimerization over Amberlyst 35 decreased with the temperature, which was harmful to the product yield and catalyst stability. Besides, different activity orders of solid phosphoric acid catalysts in model gasoline and FCC gasoline were explained by combining the acidic properties of the catalysts with the species of olefins in two feeds.
Another tip … if you need help accessing your subscribed databases, talk to your librarian, or whoever is in charge of that resource in your organization.
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These Desulfurization Technology (www.desulf.blogspot.com) tips can apply to any technology of interest to you … follow the blog, and tell your friends about it. Better yet, add it as a feed to your organization’s Intranet.
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