Korea Institute of Industrial Technology

Sung-il Encare Co., Ltd.

Kogas-tech

Gaehyun Nam

Ta Kwan Woo

Young Cheol Lee

Heeseung Na

Hweeung Kwon

Jang-ik Park

Taehee Kang

Dong-Ha Lim

Provided are an apparatus and method for liquefying natural gas. The apparatus for liquefying natural gas includes a gas compressor configured to receive and compress the natural gas from a natural gas feed stream, a heat exchanging unit configured to cool a high-pressure natural gas passing through the gas compressor through heat exchange, an expansion valve configured to expand the cooled natural gas passing through the heat exchanging unit, a hold-up drum configured to phase-separate a gas-liquid mixture produced by passing through the expansion valve and divide the gas-liquid mixture into a liquefied natural gas and a cryogenic recycle gas having nitrogen content greater than that of the liquefied natural gas so as to discharge the liquefied natural gas and the cryogenic recycle gas, and a bypass line configured to provide the recycle gas discharged from the hold-up drum to the heat exchanging unit.

Apparatus for liquefying natural gas and method for liquefying natural gas

Growing community of inventors

Hwaseong-si, South Korea

Gaehyun Nam