US 11,655,910 B2
Adsorption processes and systems utilizing step lift control of hydraulically actuated poppet valves
John W. Fulton, Annandale, VA (US); William N. Yunker, Bolingbrook, IL (US); Bennett D. Marshall, Conroe, TX (US); Robert A. Johnson, Doylestown, PA (US); Roland Mischler, Frauenfeld (CH); and Stefan Aschwanden, Frauenfeld (CH)
Assigned to ExxonMobil Technology and Engineering Company, Spring, TX (US)
Filed by ExxonMobil Technology and Engineering Company, Spring, TX (US)
Filed on Oct. 2, 2020, as Appl. No. 17/62,252.
Claims priority of provisional application 62/911,703, filed on Oct. 7, 2019.
Prior Publication US 2021/0102638 A1, Apr. 8, 2021
Int. Cl. F16K 31/122 (2006.01); B01D 53/047 (2006.01)
CPC F16K 31/1225 (2013.01) [B01D 53/047 (2013.01); F16K 31/1221 (2013.01)] 30 Claims
OG exemplary drawing
 
1. A swing adsorption system, the system comprising:
at least two absorbent bed vessels arranged in parallel, wherein the at least two adsorption bed vessels share a common inlet header and are in fluid communication;
a valve installation including a valve assembly including a valve positioned to introduce fluid flow into one of said absorbent bed vessels, wherein the valve installation is characterized by a flow area response to valve lift over a range of valve lift; and
the valve installation further including a fluidized valve actuator, the actuator comprising:
a reservoir containing a fluid and having an outlet coupled with the valve assembly to communicate pressure thereto;
a first cylinder and a first piston positioned within the first cylinder, the first cylinder and first piston positioned to communicate a first volume of the fluid through the outlet and to the valve assembly, said first cylinder and first piston defining a first displacement volume; and
a second cylinder and a second piston positioned within the second cylinder, the second cylinder and second piston positioned to communicate a second volume of the fluid through the outlet and to the valve assembly, said second cylinder and second piston defining a second displacement volume;
wherein said first piston is independently operable of said second piston, and wherein said first and second displacement volumes at least partially define a system fluid volume to communicate pressure through said outlet and to said valve assembly;
characterized in that extension of each piston of the fluidized valve actuator communicates pressure to the valve assembly and at least partially lifts the valve into an at least partially lifted and open position.