The goal of this project is to design and build an innovative technology for cost-effective removal of contaminants from raw landfill gas. The developed cleanup process was demonstrated on a pilot-scale (100 standard cubic feet per minute of gas) and consisted of three subsystems for sequential removal of (1) hydrogen sulfide/siloxanes, (2) carbon dioxide, and (3) oxygen/nitrogen from raw landfill gas. The innovative technology uses absorbing materials that are more environmentally friendly compared with existing commercial solutions to produce renewable natural gas in compliance with natural gas pipeline injection standards.
