Separator vessel and process of using same

Abstract

A separator for separating a hydroprocessed effluent and a process of using same. The separator vessel includes a scrubbing section in a tower to remove acid gases from the vapor that is separated in the separator and that passes upwards through the tower. A treated gas can be recovered from the separator. Additionally, a liquid hydrocarbon stream and a water stream, usually a sour water stream, can be recovered from the separator as well.

What is claimed is: 
     
         1 . A separator vessel for separating and treating a portion of an effluent stream, the separator vessel comprising:
 a body having a first end, a second end, a top, a bottom, and an inlet for an effluent stream, the inlet disposed near the first end of the body;   a boot extending away from the bottom of the body; and,   a tower extending away from the top of the body, the tower disposed above at least a portion of the boot, wherein the tower includes a scrubbing section configured to remove hydrogen sulfide from gases within the body of the separator vessel.   
     
     
         2 . The separator vessel of  claim 1  further comprising:
 a chimney tray disposed in the tower between the body of the separator vessel and the scrubbing section of the tower. 
 
     
     
         3 . The separator vessel of  claim 2  further comprising:
 an outlet for rich amine associated with the chimney tray. 
 
     
     
         4 . The separator vessel of  claim 1 , further comprising:
 an inlet for lean amine disposed in the tower above the scrubbing section.   
     
     
         5 . The separator vessel of  claim 1  further comprising:
 a demister extending between the top of the separator vessel and the bottom of the separator vessel and disposed between the first end of the separator vessel and the tower. 
 
     
     
         6 . The separator vessel of  claim 1  further comprising:
 an outlet for a liquid hydrocarbon stream disposed proximate the second end of the body. 
 
     
     
         7 . The separator vessel of  claim 1  wherein the scrubbing section comprises at least one packed bed or tray. 
     
     
         8 . The separator vessel of  claim 1  further comprising:
 an outlet for treated vapor disposed proximate a top of the tower. 
 
     
     
         9 . The separator vessel of  claim 1  wherein an operating pressure of the separator vessel is approximately 40 to 180 Kg/cm 2 . 
     
     
         10 . A process for separating and treating a liquid effluent stream from a hydroprocessing zone, the process comprising:
 passing a liquid effluent stream from a hydroprocessing zone to a separation zone;   separating the liquid effluent stream into a liquid portion and a vapor portion in the separation zone, wherein the separation zone comprises at least one vessel comprising: a body having a first end, a second end, a top, a bottom, and an inlet for a hydrotreated effluent stream, the inlet disposed near the first end of the body; a boot extending away from the bottom of the body; and, a tower extending away from the top of the body, the tower disposed above at least a portion of the boot, wherein the tower includes a scrubbing section; and,   removing hydrogen sulfide from the vapor portion of the liquid effluent stream within the at least one vessel.   
     
     
         11 . The process of  claim 10  wherein an operating pressure of the at least one vessel of the separation zone is approximately 40 to 180 Kg/cm 2 . 
     
     
         12 . The process of  claim 10  further comprising:
 hydrotreating a feed stream in the hydroprocessing zone to produce a hydrotreated stream, wherein the hydrotreated stream comprises the liquid effluent stream from the hydroprocessing zone. 
 
     
     
         13 . The process of  claim 12  wherein the hydrotreated stream comprises a hydrotreated diesel stream. 
     
     
         14 . The process of  claim 10  wherein the at least one vessel further comprises a chimney tray disposed in the tower between the body of the vessel and the scrubbing section of the tower. 
     
     
         15 . The process of  claim 10  wherein the at least one vessel further comprises a demister extending between the top of the vessel and the bottom of the vessel and disposed between the first end of the vessel and the tower. 
     
     
         16 . The process of  claim 10  wherein the at least one vessel further comprises an outlet for a liquid hydrocarbon stream disposed proximate the second end of the body. 
     
     
         17 . The process of  claim 10  wherein the scrubbing section of the at least one vessel further comprises at least one packed bed or trays. 
     
     
         18 . The process of  claim 10  wherein the at least one vessel further comprises an outlet for treated vapor disposed proximate a top of the tower. 
     
     
         19 . The process of  claim 10  further comprising:
 hydrocracking a feed stream in the hydroprocessing zone to produce a hydrocracked stream, wherein the hydrocracked stream comprises the liquid effluent stream from the hydroprocessing zone. 
 
     
     
         20 . A separator vessel for separating a portion of an effluent stream into a vapor stream and a liquid stream and for treating the vapor stream within the vessel, the separator vessel comprising:
 a body having a first end, a second end, a top, a bottom, and an inlet for an effluent stream, the inlet disposed near the first end of the body;   a boot extending away from the bottom of the body;   an outlet for a liquid hydrocarbon stream disposed proximate the second end of the body;   a tower extending away from the top of the body, the tower disposed above at least a portion of the boot, wherein the tower includes at least one packed bed or tray; and,   a second outlet for a scrubbed vapor stream disposed proximate a top of the tower.