Title :
Research and Adaptability Analysis on Acid Gas Removing Technology in Floating LNG Plant
Author :
Fan, Q.H. ; Li, H.Y. ; Ji, Z.M. ; Cui, J.S. ; Liu, L. ; Yin, Q.S. ; Du, H.P. ; Jia, L.X.
Author_Institution :
Inst. of Cryogenics & Supercond. Technol., Harbin Inst. of Technol., Harbin, China
Abstract :
Associated gas in offshore oil field is a kind of clean and efficient energy resource. Institute of Cryogenics and Superconductivity Technology at HIT has developed a floating LNG liquefaction plant for the associated gas. Based on the offshore oil field associated gas characteristics and the reaction mechanism between amine solutions and CO2, the CO2 removal process using MDEA+MEA aqueous solutions and its flow diagram are given. It analyses the adaptability of the CO2 removal cycle on the offshore oil associated-gas flux and CO2 content in the feed gas. The analysis result shows that the circulating amount of amine solutions should be 500 kmol/h~200 kmol/h and the reboiler heat load should be 600 kW~200 kW, when the CO2 mole fraction is 0.45%~5.54% in the associated gas, and the capacity of the purification system is 11.6 Ã 104 Nm3/d. The result provides guidelines for the design and operation of the small-scale floating LNG liquefaction device.
Keywords :
fuel processing; liquefaction; natural gas technology; offshore installations; purification; CO2 removal process; Institute of Cryogenics and Superconductivity Technology; MDEA+MEA aqueous solution; acid gas removal technology; adaptability analysis; amine solution; energy resource; floating LNG liquefaction plant; flow diagram; offshore oil field; purification system; reaction mechanism; reboiler heat load; Absorption; Chemical processes; Chemical technology; Cryogenics; Energy resources; Feeds; Liquefied natural gas; Petroleum; Purification; Superconductivity;
Conference_Titel :
Power and Energy Engineering Conference (APPEEC), 2010 Asia-Pacific
Conference_Location :
Chengdu
Print_ISBN :
978-1-4244-4812-8
Electronic_ISBN :
978-1-4244-4813-5
DOI :
10.1109/APPEEC.2010.5449497