Modular, mobile and scalable LNG plant

A system for the production of liquefied natural gas from raw natural gas comprising:

• a pre-treatment module comprising a molecular sieve configured to remove impurities from a raw natural gas input;
• a gas compression module comprising an absorption chiller, and a multi-stage compressor including a primary gas compressor and a recycle gas compressor configured to compress gas received from the pre-treatment module;
• a gas liquefaction module comprising a gas pre-cooler configured to pre-cool gas received from the compression module using a closed-loop refrigeration cycle and a six-stream heat exchanger unit configured to cool gas received from the gas pre-cooler;
• and
• a power module comprising a gas engine configured to provide power to the gas compression module, and the gas liquefaction module,
• wherein the six-stream heat exchanger unit configured to cool gas received from the gas pre-cooler comprises a six-stream plate and fin heat exchanger, and
• wherein the six-stream plate and fin heat exchanger comprises a primary section and a secondary section,
• wherein the primary section is configured to receive first and second streams of gas from the gas pre-cooler, further comprising a turbo expander configured to receive the first stream of gas from the primary section of the six-stream plate and fin heat exchanger to reduce the pressure and temperature of the gas,
• wherein the secondary section is configured to receive a third stream of gas from the primary section, further comprising a first Joule Thompson valve configured to receive a first portion of the third stream of gas stream from the secondary section,
• wherein the primary section is configured to receive a fourth stream of gas from the secondary section,
• wherein the primary section is configured to receive a fifth stream of gas from the turbo expander, and
• wherein the secondary section is configured to receive a sixth stream of gas from the first Joule Thompson valve.