| |
 |
|
Class Information
Number: 62/623
Name: Refrigeration > Cryogenic treatment of gas or gas mixture > Separation of gas mixture > Natural gas > Distillation > External refrigeration circuit
Description: Subject matter wherein the gas or gas mixture or the products of separation are operated upon by an outside source of refrigeration.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7628035 |
Method for processing a stream of LNG obtained by means of cooling using a first refrigeration cycle and associated installation |
Dec. 8, 2009 |
| 7610775 |
Distillation process using microchannel technology |
Nov. 3, 2009 |
| 7437891 |
Recovery and purification of ethylene |
Oct. 21, 2008 |
| 7305850 |
Distillation process using microchannel technology |
Dec. 11, 2007 |
| 7185514 |
Method and installation for fractionating gas derived from pyrolysis of hydrocarbons |
Mar. 6, 2007 |
| 7100399 |
Enhanced operation of LNG facility equipped with refluxed heavies removal column |
Sep. 5, 2006 |
| 7082787 |
Refrigeration system |
Aug. 1, 2006 |
| 6978638 |
Nitrogen rejection from condensed natural gas |
Dec. 27, 2005 |
| 6925837 |
Enhanced operation of LNG facility equipped with refluxed heavies removal column |
Aug. 9, 2005 |
| 6923016 |
Refrigeration cycle apparatus |
Aug. 2, 2005 |
| 6564580 |
Process for recovering ethane and heavier hydrocarbons from methane-rich pressurized liquid mixture |
May. 20, 2003 |
| 6560989 |
Separation of hydrogen-hydrocarbon gas mixtures using closed-loop gas expander refrigeration |
May. 13, 2003 |
| 6539747 |
Process of manufacturing pressurized liquid natural gas containing heavy hydrocarbons |
Apr. 1, 2003 |
| 6513338 |
Refrigerant mixture for a mixture-throttling process |
Feb. 4, 2003 |
| 6401486 |
Enhanced NGL recovery utilizing refrigeration and reflux from LNG plants |
Jun. 11, 2002 |
| 6363744 |
Hydrocarbon separation process and apparatus |
Apr. 2, 2002 |
| 6334334 |
Process for liquefying a hydrocarbon-rich stream |
Jan. 1, 2002 |
| 6286335 |
Processes for multicomponent separation |
Sep. 11, 2001 |
| 6266977 |
Nitrogen refrigerated process for the recovery of C2+ Hydrocarbons |
Jul. 31, 2001 |
| 6223558 |
Method of refrigeration purification and power generation of industrial waste gas and the apparatus therefor |
May. 1, 2001 |
| 6192705 |
Reliquefaction of pressurized boil-off from pressurized liquid natural gas |
Feb. 27, 2001 |
| 6158241 |
LPG recovery from reformer treat gas |
Dec. 12, 2000 |
| 5983665 |
Production of refrigerated liquid methane |
Nov. 16, 1999 |
| 5956971 |
Process for liquefying a natural gas stream containing at least one freezable component |
Sep. 28, 1999 |
| 5950453 |
Multi-component refrigeration process for liquefaction of natural gas |
Sep. 14, 1999 |
| 5924306 |
Method for demethanizing gas mixtures |
Jul. 20, 1999 |
| 5832746 |
Ultra-high purity nitrogen trifluoride production method, and unit therefor |
Nov. 10, 1998 |
| 5749245 |
Refrigerant separation system |
May. 12, 1998 |
| 5701761 |
Method and installation for the liquefaction of natural gas |
Dec. 30, 1997 |
| 5657643 |
Closed loop single mixed refrigerant process |
Aug. 19, 1997 |
| 5644931 |
Gas liquefying method and heat exchanger used in gas liquefying method |
Jul. 8, 1997 |
| 5626034 |
Mixed refrigerants in ethylene recovery |
May. 6, 1997 |
| 5600969 |
Process and apparatus to produce a small scale LNG stream from an existing NGL expander plant demethanizer |
Feb. 11, 1997 |
| 5588306 |
Process for obtaining an ethane-rich fraction for refilling an ethane-containing refrigerant circuit of a process for liquefaction of a hydrocarbon-rich fraction |
Dec. 31, 1996 |
| 5566555 |
Vapor recovery system with refrigeration and regeneration cycles |
Oct. 22, 1996 |
| 5502972 |
Mixed refrigerant cycle for ethylene recovery |
Apr. 2, 1996 |
| 5502971 |
Low pressure recovery of olefins from refinery offgases |
Apr. 2, 1996 |
| 5377490 |
Open loop mixed refrigerant cycle for ethylene recovery |
Jan. 3, 1995 |
| 5339641 |
Cryogenic liquid nitrogen production system |
Aug. 23, 1994 |
| 5295356 |
Process and apparatus for the production of carbon monoxide and hydrogen |
Mar. 22, 1994 |
| 5114451 |
Liquefied natural gas processing |
May. 19, 1992 |
| 5090977 |
Sequence for separating propylene from cracked gases |
Feb. 25, 1992 |
| 4987744 |
Cryogenic distillation with unbalanced heat pump |
Jan. 29, 1991 |
| 4778498 |
Process to produce high pressure methane gas |
Oct. 18, 1988 |
| 4767428 |
Nitrogen removal system |
Aug. 30, 1988 |
| 4738699 |
Process for recovering ethane, propane and heavier hydrocarbons from a natural gas stream |
Apr. 19, 1988 |
| 4734115 |
Low pressure process for C.sub.3.sup.+ liquids recovery from process product gas |
Mar. 29, 1988 |
| 4662919 |
Nitrogen rejection fractionation system for variable nitrogen content natural gas |
May. 5, 1987 |
| 4608068 |
Recovery of C.sub.3+ hydrocarbons |
Aug. 26, 1986 |
| 4597788 |
Process for recovering ethane, propane and heavier hydrocarbons from a natural gas stream |
Jul. 1, 1986 |
|
|
|
