Super-compact BOG recondensing system minimizes equipment lifecycle costs

摘要

Processing boiloff gas (BOG) is a challenge for the hydrocarbon processing industry. The industry has been addressing the issue by installing BOG recondensing systems, which reduce power consumption by the BOG compressor.1 To further minimize the lifecycle cost of BOG processing equipment, the authors propose a considerable reduction in the size of the BOG recondenser. Here, an innovative BOG recondenser with a volume of only 2% of conventional ones is introduced. Patents were filed for the recondenser. The unit's recondensing performance and benefits, as well as the control system that ensures the safe and stable operation of the entire system, are also described. Since it began importing LNG from Alaska in 1969, Japan has become the worlds biggest importer and consumer of LNG-Japan also has the largest number of LNG importing terminals in the world, along with rich experience in the design, construction and operation of these terminals. During this period of nearly 50 years, the country has confronted various technical issues regarding LNG, and it has demonstrated the methods of overcoming these problems to the industry. The technology introduced here is one of the products based on this experience.