Simplify BOG recondenser design and operation—Part 1

S. P. B. Lemmers, Vopak LNG Holding BV, Rotterdam, The Netherlands LNG receiving and regasification terminals connect the intermittent process of LNG carrier unloading and/or loading with the mostly continuous process of LNG vaporization and gas transmission into a sendout pipeline system. In addition to these LNG carrier operations, truck/train loading operations can take place simultaneously. During all operational modes of the LNG terminal, boiloff gas (BOG) is produced, which requires processing to avoid flaring or venting (under normal operating conditions) and to minimize the environmental impact of the facility. There are several options to choose from for the design of BOG reconde