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1. (WO2018222526) HYDROCARBON GAS PROCESSING

Pub. No.:    WO/2018/222526    International Application No.:    PCT/US2018/034615
Publication Date: Fri Dec 07 00:59:59 CET 2018 International Filing Date: Sat May 26 01:59:59 CEST 2018
IPC: F25J 3/00
C07C 7/04
F25J 3/02
Applicants: ORTLOFF ENGINEERS, LTD.
S.M.E. PRODUCTS LP
Inventors: PIERCE, Michael, C.
CUELLAR, Kyle, T.
MILLER, Scott, A.
WILKINSON, John, D.
LYNCH, Joe, T.
HUDSON, Hank, M.
JOHNKE, Andrew, F.
LEWIS, W., Larry
Title: HYDROCARBON GAS PROCESSING
Abstract:
A process and an apparatus are disclosed for a compact processing assembly to improve the recovery of C2 (or C3) and heavier hydrocarbon components from a hydrocarbon gas stream. The preferred method of separating a hydrocarbon gas stream generally includes producing at least a substantially condensed first stream and a cooled second stream, expanding both streams to lower pressure, and supplying the streams to a fractionation tower. In the process and apparatus disclosed, the tower overhead vapor is directed to an absorbing means and a heat and mass transfer means inside a processing assembly. The outlet vapor from the processing assembly is compressed to higher pressure and cooled, then a portion is substantially condensed in a heat exchange means inside the processing assembly, expanded to lower pressure, and supplied to the heat and mass transfer means to provide cooling. Condensed liquid from the absorbing means is fed to the tower.