US 12,186,682 B2
Restoring accumulated DGA with reclaimer sparge line
Majed Fehaid Alanazi, Dammam (SA); Abdullah Al-Abbad, Al-Ahsa (SA); and Mosa H. Sahari, Al Khobar (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Dec. 3, 2021, as Appl. No. 17/457,609.
Prior Publication US 2023/0173410 A1, Jun. 8, 2023
Int. Cl. B01D 19/00 (2006.01); B01D 53/14 (2006.01); B01D 53/96 (2006.01)
CPC B01D 19/001 (2013.01) [B01D 53/1425 (2013.01); B01D 53/1493 (2013.01); B01D 53/96 (2013.01); B01D 2252/20484 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A system for converting BHEEU to DGA comprising:
an amine unit;
a reclaimer configured to receive a lean DGA stream comprising BHEEU and DGA exiting the amine unit and a reclaimer steam stream to convert at least a portion of the BHEEU to DGA;
a reclaimer steam line configured to flow the reclaimer steam stream to the reclaimer;
a sparge line connected to a steam source and to the reclaimer, wherein the sparge line is configured to introduce sparge steam to restore accumulated DGA at a bottom of the reclaimer;
an output stream comprising DGA;
a level transmitter configured to measure a reclaimer level in the reclaimer;
a sparge valve connected to the sparge line;
a sparge controller communicatively coupled to the sparge valve and the level transmitter, wherein the sparge controller is configured to open the sparge valve and introduce sparge steam through the sparge line to the reclaimer in response to the reclaimer level exceeding 63%; and
a reclaimer level controller connected to the reclaimer steam line, wherein the reclaimer level controller is communicatively coupled to the level transmitter, wherein the reclaimer level controller is configured to adjust the flow of the reclaimer steam stream to the reclaimer to maintain the reclaimer level.