US 11,884,534 B2
System for emergency pressure relief and vapor capture
Edward John Brost, Brights Grove (CA); and Gary Stewart Locke, Calgary (CA)
Assigned to CARBOVATE DEVELOPMENT CORP., Sarnia (CA)
Filed by CARBOVATE DEVELOPMENT CORP., Sarnia (CA)
Filed on Dec. 8, 2022, as Appl. No. 18/077,230.
Claims priority of provisional application 63/312,222, filed on Feb. 21, 2022.
Prior Publication US 2023/0264942 A1, Aug. 24, 2023
Int. Cl. B67D 7/54 (2010.01); F17C 13/04 (2006.01); F17C 5/02 (2006.01)
CPC B67D 7/54 (2013.01) [F17C 5/02 (2013.01); F17C 13/04 (2013.01); F17C 2205/0326 (2013.01); F17C 2205/0332 (2013.01); F17C 2221/032 (2013.01); F17C 2227/0135 (2013.01); F17C 2227/03 (2013.01); F17C 2260/044 (2013.01)] 30 Claims
OG exemplary drawing
 
1. An apparatus comprising:
a pressure-equalized containment vessel (103) fluidly coupled to a Process Relief Device (PRD) (106), wherein the PRD (106) is configured to fluidly couple the containment vessel (103) with a process vessel (154) in response to a process relief event in the process vessel (154), and wherein the pressure-equalized containment vessel (103) is preloaded with a Low Vapor Pressure (LVP) liquid (130); and
an evacuated headspace (136) above the LVP liquid (130) in the containment vessel (103), wherein the evacuated headspace (136) above the LVP liquid (130) has been partially filled with a High Vapor Pressure (HVP) material (300) configured to flash to HVP material (300) vapors and occupy the headspace (136), and wherein the PRD (106) is configured to relieve a process relief mass (503) from the process vessel (154) into the containment vessel (103) during the process relief event and permit the HVP material (300) vapors to mix with the process relief mass (503) and condense to liquid in the containment vessel (103).