Development of Steam Hydrogasification Process Demonstration Unit-5 LBHR PDU Design Report - Final Project Report

Cover of report

Publication Number: CEC-500-2013-092
Report Date: September 2011

Development of Steam Hydrogasification Process Demonstration Unit-5 LBHR PDU Design Report
Final Project Report. (PDF file, 49 pages, 1.5 megabytes).



The increasing cost of transportation fuel along with increasing concerns about greenhouse gas emissions globally, including California, underlies a critical need to develop sustainable alternative transportation fuels. California needs to produce nearly 2.4 billion gasoline gallon equivalents per year of alternative transportation fuels in order to meet the State Alternative Fuels Plan 2017 petroleum reduction objectives. Currently, California imports more than 95 percent of the biofuels it uses. Ramping up in‐state biofuel production without competing with existing cropland will be difficult unless other, non‐crop biomass resources can be used. Thermochemical production of alternative transportation fuels such as substituted natural gas, synthetic diesel or synthetic gasoline derived from renewable sources offers a viable solution for addressing these concerns. This project successfully demonstrated steam hydrogasification reaction technology using co‐mingled biosolids and biomass as the feedstock in a laboratory scale process demonstration unit. The steam hydrogasification technology was able to produce various forms of energy products from carbonaceous resources. The researchers also completed a preliminary modeling evaluation and design for a pilot plant with a capacity of five tons per day using the process demonstration unit technology. The plant design included a block flow diagram with process mass, energy balance and process and utility flow diagrams. In addition, the researchers conducted preliminary economic analyses for a 3,500 bone dry tone per day substituted natural gas plant using biosolid and green waste as feedstock. The authors concluded that the results of this project warranted moving forward with plans for a demonstration pilot plant at a waste treatment facility.