Field Demonstration of a Membrane Process to Separate Nitrogen from Natural Gas: Fifteenth Quarterly Progress Report (July 1, 2005-September 30, 2005).

Lokhandwala, K.

Technical Information Center Oak Ridge Tennessee

关键词: Membranes;    Nitrogen;    Natural gas;    Separation processes;    Construction;   

RP-ID  :  DE2006862434

学科分类：工程和技术（综合）

美国|英语

来源: National Technical Reports Library

【 摘 要 】

The natural gas specification for inert gases is less than 4%. On this basis, about 17% of known U.S. reserves of gas are subquality due to high nitrogen content. Some of this gas can be brought to pipeline specifications by dilution with low-nitrogen-content gas; some is treated by cryogenic condensation and fractionation. Nonetheless, about 1.0 trillion scf of known reserves are currently shut in. This project covers the first demonstration of a new membrane technology to treat this otherwise unusable gas. The objective of this project is to develop a membrane separation process to separate nitrogen from high-nitrogen-content natural gas. To demonstrate the process, a proof-of-concept plant was built at a North Texas Exploration (NTE) gas field in Texas/Oklahoma.