Process of complete cryogenic vaporization of liquefied natural gas
Patent
·
OSTI ID:6479583
Showa Denko K.K.'s new approach provides complete cryogenic vaporization of LNG without freeze-out of higher hydrocarbons when utilizing the LNG as a cryogen for cryogenic heat-exchange processes at a high efficiency. The LNG is vaporized by a 1st vaporization step at a temperature lower than -166/sup 0/F until the nonvaporized residue of the LNG becomes a predetermined amount higher than a critical percentage with respect to the initial weight of the LNG at which critical percentage higher hydrocarbons in the residual LNG are frozen out, but not higher than 8% above the critical percentage. The residual LNG is separated from the first-vaporized natural gas. After the latter is conditioned to a temperature of -148 to -40/sup 0/F, the separated residual LNG is vaporized in a 2nd vaporization step by introducing it into a flow of the conditioned first-vaporized natural gas.
- Assignee:
- Showa Denko K.K.
- Patent Number(s):
- US 3827247
- OSTI ID:
- 6479583
- Country of Publication:
- United States
- Language:
- English
Similar Records
Transportation of hydrocarbons by cryogenic pipeline
Cryogenic expander recovery process
Process for liquefied natural gas
Technical Report
·
Wed Jun 01 00:00:00 EDT 1977
·
OSTI ID:6793251
Cryogenic expander recovery process
Patent
·
Tue Jun 09 00:00:00 EDT 1981
·
OSTI ID:5468381
Process for liquefied natural gas
Patent
·
Tue May 01 00:00:00 EDT 1984
·
OSTI ID:6513483