System and Method for Extending the Range of Hydrocarbon Feeds in Gas Crackers

In a system for thermal cracking gaseous feedstocks, the system including a gas cracker for producing an effluent comprising olefins, at least one transfer line exchanger for the recovery of process energy from the effluent and a water quench tower system, a process for extending the range of system...

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Main Authors ROONEY MARK A, MESSINGER JOHN R, HAMMOND BARRINGTON M, STRACK ROBERT D, FILUPEIT WALTER F, MCCOY JAMES N, DUHON DAVID J
Format Patent
LanguageEnglish
Published 24.09.2009
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Summary:In a system for thermal cracking gaseous feedstocks, the system including a gas cracker for producing an effluent comprising olefins, at least one transfer line exchanger for the recovery of process energy from the effluent and a water quench tower system, a process for extending the range of system feedstocks to include liquid feedstocks that yield tar is provided. The process includes the steps of injecting a first quench fluid downstream of the at least one transfer line exchanger to quench the process effluent comprising olefins, separating in a separation vessel a cracked product and a first byproduct stream comprising tar from the quenched effluent, directing the separated cracked product to the water quench tower system and quenching the separated cracked product with a second quench fluid to produce a cracked gas effluent for recovery and a second byproduct stream comprising tar. An apparatus for cracking a liquid hydrocarbon feedstock that yield tar is also provided.
Bibliography:Application Number: US20090479157