US 12,440,802 B2
Method to dry a hydrocarbon gas stream
Jose Lourenco, Edmonton (CA); and Mackenzie Millar, Edmonton (CA)
Assigned to 1304338 Alberta Ltd., Edmonton (CA); and 1304342 Alberta Ltd., Edmonton (CA)
Filed by 1304338 Alberta Ltd., Edmonton (CA); and 1304342 Alberta Ltd., Edmonton (CA)
Filed on May 12, 2022, as Appl. No. 17/743,025.
Claims priority of application No. 3119011 (CA), filed on May 18, 2021.
Prior Publication US 2022/0370953 A1, Nov. 24, 2022
Int. Cl. B01D 53/26 (2006.01)
CPC B01D 53/265 (2013.01) [B01D 2256/245 (2013.01); B01D 2257/702 (2013.01); B01D 2257/80 (2013.01); B01D 2258/0283 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A method to dry a gas stream comprising methane and condensable components, the condensable components having a lower boiling point than methane, the method comprising the steps of:
combining the gas stream with a cold liquid stream in an in-line gas mixer to produce a mixed stream that is colder than the gas stream and to condense a first portion of the condensable components;
passing the mixed stream through a first separator to remove the condensed first portion and obtain a second gas stream;
lowering a pressure and temperature of the second gas stream in an expansion device to obtain a third gas stream and condense a second portion of the condensable components;
passing the third gas stream through a second separator to remove the condensed second portion and obtain a dried gas stream; and
recirculating at least a portion of the condensed second portion into the in-line gas mixer as the cold liquid stream.