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1. WO2012068685 - METHOD AND APPARATUS FOR COMPRESSING RICH NATURAL GAS

Publication Number WO/2012/068685
Publication Date 31.05.2012
International Application No. PCT/CA2011/050725
International Filing Date 22.11.2011
IPC
C10L 3/12 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
3Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclasses C10G, C10K108; Liquefied petroleum gas
12Liquefied petroleum gas
C10L 3/10 2006.01
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR  C10K111; LIQUEFIED PETROLEUM GAS;  USE OF ADDITIVES TO FUELS OR FIRES;  FIRE-LIGHTERS
3Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclasses C10G, C10K108; Liquefied petroleum gas
06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04139
10Working-up natural gas or synthetic natural gas
CPC
C10L 3/101
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
3Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
10Working-up natural gas or synthetic natural gas
101Removal of contaminants
C10L 3/106
CCHEMISTRY; METALLURGY
10PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
LFUELS NOT OTHERWISE PROVIDED FOR
3Gaseous fuels; Natural gas; Synthetic natural gas obtained by processes not covered by subclass C10G, C10K; Liquefied petroleum gas
06Natural gas; Synthetic natural gas obtained by processes not covered by C10G, C10K3/02 or C10K3/04
10Working-up natural gas or synthetic natural gas
101Removal of contaminants
106of water
Applicants
  • CANGAS SOLUTIONS LTD. [CA]/[CA] (AllExceptUS)
  • LOEWEN, Greg [CA]/[CA] (UsOnly)
  • FRASER, Donald [CA]/[CA] (UsOnly)
  • MROCH, Jeremy [CA]/[CA] (UsOnly)
  • FERNER, Peter [CA]/[CA] (UsOnly)
Inventors
  • LOEWEN, Greg
  • FRASER, Donald
  • MROCH, Jeremy
  • FERNER, Peter
Agents
  • WOODRUFF, Nathan
Priority Data
13/085,36012.04.2011US
272364123.11.2010CA
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) METHOD AND APPARATUS FOR COMPRESSING RICH NATURAL GAS
(FR) PROCÉDÉ ET APPAREIL PERMETTANT DE COMPRIMER DU GAZ NATUREL RICHE
Abstract
(EN)
A method and apparatus for compressing rich natural gas is described. The apparatus has a compression stage that has a gas inlet for receiving rich natural gas. The compression stage includes one or more compressors and one or more cooling elements. A pressure vessel is also included for receiving the compressed gas from the compression stage and a liquid outlet is connected between the compression stage and a vessel having a pressure that is less than the pressure in the compression stage. The vessel has a gas outlet connected to the gas inlet. The method includes the steps of subjecting a stream of rich natural gas to a compression cycle to form a compressed gas and a condensate, separating the condensate from the compressed gas, flashing at least a portion of the condensate to a gas and recycling the flashed condensate into the compression cycle.
(FR)
L'invention concerne un procédé et un appareil permettant de comprimer du gaz naturel riche. L'appareil comporte un étage de compression qui comporte une entrée de gaz permettant de recevoir du gaz naturel riche. L'étage de compression comprend un ou plusieurs compresseurs et un ou plusieurs éléments de refroidissement. Un récipient sous pression est également inclus pour recevoir le gaz comprimé provenant de l'étage de compression et une sortie de liquide est raccordée entre l'étage de compression et un récipient ayant une pression qui est inférieure à la pression dans l'étage de compression. Le récipient comporte une sortie de gaz raccordée à l'entrée de gaz. Le procédé comprend les étapes consistant à soumettre un courant de gaz naturel riche à un cycle de compression pour former un gaz comprimé et un condensat, séparer le condensat du gaz comprimé, détendre au moins une partie du condensat sur un gaz et recycler le condensat détendu dans le cycle de compression.
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