New liquefaction process promises lower costs

Yet another LNG liquefaction process has recently become commercially available and claims to cut the cost of LNG production by 20%.Liquefin, commercialized by IFP-Axens, France, was developed in cooperation with a major oil and gas company, says the company, with benefits recently demonstrated in studies conducted by engineering contractors and vendors for the main compression and the main exchange lines.MR basis Click here to enlarge imageIn the process (Fig. 1), the prerefrigeration of the gas is achieved by use of a mixed refrigerant instead of propane. The prerefrigeration cycle operates at a much lower temperature than in a conventional dual-cycle process: The temperature is decrea...

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