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1. WO2022126282 - LNG PROCESS USING FEEDSTOCK AS PRIMARY REFRIGERANT

Publication Number WO/2022/126282
Publication Date 23.06.2022
International Application No. PCT/CA2021/051842
International Filing Date 17.12.2021
IPC
F25J 1/00 2006.1
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION, OR SEPARATION OF GASES OR GASEOUS MIXTURES BY PRESSURE AND COLD TREATMENT
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
CPC
F25J 1/0022
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
0002characterised by the fluid to be liquefied
0022Hydrocarbons, e.g. natural gas
F25J 1/0035
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
003characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
0032using the feed stream itself or separated fractions from it, i.e. "internal refrigeration"
0035by gas expansion with extraction of work
F25J 1/0052
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
003characterised by the kind of cold generation within the liquefaction unit for compensating heat leaks and liquid production
0047using an "external" refrigerant stream in a closed vapor compression cycle
0052by vaporising a liquid refrigerant stream
F25J 1/0212
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
02requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
0211using a multi-component refrigerant [MCR] fluid in a closed vapor compression cycle
0212as a single flow MCR cycle
F25J 1/0247
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
02requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
0243Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
0244Operation; Control and regulation; Instrumentation
0245Different modes, i.e. 'runs', of operation; Process control
0247start-up of the process
F25J 1/0254
FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
JLIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS ; OR LIQUEFIED GASEOUS; MIXTURES BY PRESSURE AND COLD TREATMENT ; OR BY BRINGING THEM INTO THE SUPERCRITICAL STATE
1Processes or apparatus for liquefying or solidifying gases or gaseous mixtures
02requiring the use of refrigeration, e.g. of helium or hydrogen ; Details and kind of the refrigeration system used; Integration with other units or processes; Controlling aspects of the process
0243Start-up or control of the process; Details of the apparatus used; Details of the refrigerant compression system used
0244Operation; Control and regulation; Instrumentation
0254controlling particular process parameter, e.g. pressure, temperature
Applicants
  • JL ENERGY TRANSPORTATION INC. [CA]/[CA]
Inventors
  • MORRIS, Ian
  • LAGADIN, John
Agents
  • PARLEE MCLAWS LLP
Priority Data
63/127,54818.12.2020US
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) LNG PROCESS USING FEEDSTOCK AS PRIMARY REFRIGERANT
(FR) PROCÉDÉ DE GNL UTILISANT UNE CHARGE D'ALIMENTATION EN TANT QUE FLUIDE FRIGORIGÈNE PRIMAIRE
Abstract
(EN) Described is a process for production of Liquefied Natural Gas (LNG) that optimises an offset turbo expansion chilling curve attributed to the refrigerant properties inherent to the natural gas feedstock for the majority of chilling, followed by a smaller externally sourced heat exchange to make the final phase transition to LNG. This process reduces the complexity and high capital costs associated with traditional LNG systems.
(FR) L'invention concerne un procédé de production de gaz naturel liquéfié (GNL) qui optimise une courbe de refroidissement de turbo-expansion décalée attribuée aux propriétés de fluide frigorigène inhérentes à la charge d'alimentation en gaz naturel pour la majorité du refroidissement, suivi d'un échange de chaleur à source externe plus petit pour réaliser la transition de phase finale au GNL. Ce procédé réduit la complexité et les coûts d'investissement élevés associés aux systèmes de GNL classiques.
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