In a recently completed project, Gas Technology Institute (GTI) worked with Haldor Topsoe Inc. on an integrated biorefinery to make renewable drop-in gasoline, successfully producing a high-octane transportation fuel. The use of renewable gasoline could reduce lifecycle greenhouse gas emissions by approximately 92% when compared to conventional gasoline.
“Over the past four years, we’ve demonstrated an economically viable method for thermochemical conversion of woody biomass into gasoline. We’re extremely pleased with the positive results and the potential to meet growing energy needs with cost-effective and clean renewable resources,” says Rick Knight, GTI Institute Engineer and manager of the installation, integration, and operational testing at GTI.
The pilot-scale project converted wood into bio-derived gasoline by fully integrating and optimizing biomass gasification and syngas cleanup steps with a unique process to turn syngas into gasoline.
The test campaigns took place at GTI’s campus in metro Chicago. First a GTI-based Andritz-Carbona biomass gasifier turned wood into syngas. That was cleaned of tars and other contaminants in a reforming process jointly developed by Andritz-Carbona and Haldor Topsoe. Then GTI’s Morphysorb process removed carbon dioxide and sulfur gases in an acid gas removal pilot unit. For the last step, the Haldor Topsoe Improved Gasoline Synthesis process converted the syngas into gasoline blendstock.
In October 2013, the team produced about 4000 gallons of gasoline suitable for use as a gasoline blendstock. This was used for single-engine emissions testing, demonstrating that renewable gasoline would meet EPA standards in blends up to 80%.
Gas Technology Institute
Filed Under: Design World articles, Renewable energy