摘要:
The composition is constituted by a mixture of Lewis acid corresponding to the formula MXm where:M is an atom of a metal belonging to Groups IV, V and VI of the Periodic Table of Elements,X is a halogen,m is within the range of 3 to 6,And a sulphonic acid corresponding to the general formula RF(SO.sub.3 H)p where RF represents a perfluorinated alkyl or cycloalkyl hydrocarbon radical having a number of carbon atoms ranging from 2 to 8 and p is 1 or 2.
摘要:
An improved process for the vaporization of liquid hydrocarbon feeds wherein high boiling components present in the liquid feed are removed from the feed prior to subsequent processing comprising heating the liquid feed to a temperature at, but just below, its dew point, introducing the thus heated feed into a separation zone where any high boiling liquid components are removed and removing a substantially dry gaseous feed from the separation zone. The process minimizes fouling in heat exchangers and other indirect heating systems caused by coking of entrained high boiling liquids in the vaporized feed.
摘要:
In a hydrodealkylation process the vent hydrogen stream from the reaction zone is contacted with 5 to 20 mole percent of liquid C7 to C9 aromatics in one or two stages. The mixture is then flashed to yield a liquid containing about 95 percent of the benzene entering the flashing zone.