System for extending the range of hydrocarbon feeds in gas crackers

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United States of America Patent

PATENT NO 8025773
APP PUB NO 20090238735A1
SERIAL NO

12479157

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Abstract

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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.

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Patent Owner(s)

Patent OwnerAddress
EXXONMOBIL CHEMICAL PATENTS INC5200 BAYWAY DRIVE BAYTOWN TX 77520

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Duhon, David J Kingwood, US 7 75
Filupeit, Walter F Houston, US 2 16
Hammond, Barrington M Houston, US 5 46
McCoy, James N Houston, US 69 1398
Messinger, John R Kingwood, US 17 199
Rooney, Mark A Humble, US 19 36
Strack, Robert A D Houston, US 2 5

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