Title:
METHOD AND SYSTEM FOR DETERMINING OPERATING CONDITIONS OF LIQUEFIED NATURAL GAS PLANT
Document Type and Number:
WIPO Patent Application WO/2021/240689
Kind Code:
A1
Abstract:
[Problem] To determine, as one of new operating conditions, a candidate composition for mixed refrigerant to improve the production efficiency of liquefied products when the operating conditions of a liquefied natural gas plant change. [Solution] This method for determining the operating conditions of a liquefied natural gas plant 2 comprises: preparing a learning model 88 generated by machine learning using learning data in which operating condition data including the composition of feed gas, the composition of mixed refrigerant, and ambient temperature, and operating result data including the production efficiency of liquefied products containing heavy components of liquefied natural gas and feed gas have been associated; and determining, as one of new operating conditions, the composition of the mixed refrigerant that maximizes the production efficiency of liquefied natural gas as predicted by the learning model 88 from the latest composition of the feed gas in the liquefied natural gas plant 2 and the latest ambient temperature.
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Inventors:
OCHIAI TAKAYUKI (JP)
YAMAGUCHI YOSHIHIRO (JP)
YAMAGUCHI YOSHIHIRO (JP)
Application Number:
PCT/JP2020/020932
Publication Date:
December 02, 2021
Filing Date:
May 27, 2020
Export Citation:
Assignee:
CHIYODA CORP (JP)
International Classes:
F25J1/00
Domestic Patent References:
| WO2017154181A1 | 2017-09-14 | |||
| WO2019017421A1 | 2019-01-24 |
Foreign References:
| US20180209724A1 | 2018-07-26 | |||
| JPS6325481A | 1988-02-02 | |||
| JP2012531576A | 2012-12-10 | |||
| JP2013540973A | 2013-11-07 | |||
| US20180356151A1 | 2018-12-13 |
Attorney, Agent or Firm:
OSHIMA & PARTNERS (JP)
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