Abstract

Various illustrative embodiments of a system and process for recovering high-quality biomethane and carbon dioxide product streams from biogas sources and utilizing or sequestering the product streams are provided. The system and process synergistically yield a biomethane product which meets gas pipeline quality specifications and a carbon dioxide product of a quality and form that allows for its transport and sequestration or utilization and reduction in greenhouse gas emissions. The system and process result in improved access to gas pipelines for products, an improvement in the carbon intensity rating of the methane fuel, and improvements in generation of credits related to reductions in emissions of greenhouse gases.

IPC Classes  ?

• C10L 3/10 - Working-up natural gas or synthetic natural gas
• F25J 3/06 - Processes or apparatus for separating the constituents of gaseous mixtures involving the use of liquefaction or solidification by partial condensation

Abstract

A process and system for producing an engineered fuel product that meets customer specifications for composition and combustion characteristics is provided. The engineered fuel product is preferably a high-BTU, alternative fuel that burns cleaner than coal or petroleum coke (petcoke) and has significantly reduced NOx, SO2 and GHG emissions.

IPC Classes  ?

• C10L 5/46 - Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
• C10L 5/48 - Solid fuels essentially based on materials of non-mineral origin on industrial residues or waste materials
• B03B 9/06 - General arrangement of separating plant, e.g. flow sheets specially adapted for refuse