US 9,809,761 B2
Hydrocarbon processing apparatuses and methods of refining hydrocarbons with absorptive recovery of C3+ hydrocarbons
Richard Hoehn, Mt. Prospect, IL (US); Juan Carlos Vargas, Kingston (GB); and Dharmesh Chunilal Panchal, Surbiton (GB)
Assigned to UOP LLC, Des Plaines, IL (US)
Filed by UOP LLC, Des Plaines, IL (US)
Filed on Nov. 11, 2014, as Appl. No. 14/538,584.
Prior Publication US 2016/0130512 A1, May 12, 2016
Int. Cl. C10G 53/00 (2006.01); C10G 53/08 (2006.01); C10G 55/06 (2006.01); C10G 70/06 (2006.01)
CPC C10G 53/08 (2013.01) [C10G 55/06 (2013.01); C10G 70/06 (2013.01); C10G 2300/202 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of refining hydrocarbons, wherein the method comprises:
providing a cracked stream comprising a sulfur-containing component and cracked hydrocarbons;
compressing the cracked stream to produce a pressurized cracked stream;
separating the pressurized cracked stream to produce a pressurized vapor stream comprising C4− hydrocarbons and a liquid hydrocarbon stream comprising C3+ hydrocarbons;
separating the liquid hydrocarbon stream to produce a first liquid absorption stream comprising C5+ hydrocarbons and a C4− hydrocarbon stream;
absorbing C3+ hydrocarbons from the pressurized vapor stream through liquid-vapor phase absorption using the first liquid absorption stream to produce a residual vapor stream comprising residual C3− hydrocarbons;
absorbing the residual C3− hydrocarbons from the residual vapor stream using a liquid absorption stream different from the first liquid absorption stream; and
removing the sulfur-containing component prior to absorbing C3+ hydrocarbons from the pressurized vapor stream.