Updated: Oct 04, 2013
"PDU scale demonstration of Substitute Natural Gas Production Using Steam Hydrogasification"
by: Chan Seng Park
Chemical and Envrironmental Engineering Department,
University of California, Riverside
1084 Columbia Ave, Riverside, CA 92507, USA
Contact information: email@example.com;
Tel: 1-951-781-5771; Fax: 1-951-781-5790
Substituted Natural Gas (SNG) has been identified as an important alternative fuel that can contribute to achieving a number of goals set by the nation related to conventional fuel replacement and emissions reduction in the energy sector. Increased SNG utilization as an alternative fuel will have a significant impact on the nation’s energy consumption and will also result in considerable environmental benefits.
Thermo-chemical process is one of the promising technologies used to produce the syngas which can be utilized to produce several different types of biofuels. Substitute or Renewable Natural Gas (SNG or RNG) is able to be produced from various carbonaceous materials such as coal, biomass and organic wastes via a gasification process. CE-CERT gasification laboratory, University of California Riverside (UCR), has introduced the hydrogasification in the presence of steam to generate a methane rich producer gas from the wet feedstock. The process, called Steam Hydrogasification Reaction (SHR) can produce the SNG in a highly efficient manner.
Producer gas of SHR is primarily consisted of H2, CH4, CO, CO2 and steam. The hydrogen necessary for the SHR is generated internally and is sufficiently recycled back to the SHR process. For the self-sustainable hydrogen supply, Water Gas Shift (WGS) process is followed to convert CO and steam from the producer gas of the SHR to H2 and CO2. CO conversion was observed to be approximately 85% via a laboratory scale WGS reactor system using a commercial high temperature shift catalyst. The optimal condition was 350oC atmospherically with the space velocity of 4500 hr-1. The process has been scaled up to A Process Demonstration Unit (PDU). A PDU scale bubbling fluidized bed type SHR has been developed, which can process up to 0.1 ton per day of feedstock in dry basis. The PDU produces SNG from co-mingled biosolid with biomass, with the more than 15KJ per kg of feed. The final producer gas has 84% of CH4 content with final separation of CO2.
Description: Description: Description: Chan Seung ParkDr. Park earned his B.S., M.S., and Ph.D. degrees in Chemistry from Seoul National University in Korea. Previously, he worked for the refinery in Korea to develop various renewable energy conversion processes such as steam reforming of natural gas, energy storage device and Selectively Catalytic Reduction (SCR) process. He was a Principal Research Scientist for SK Corporation's Research Laboratory in the Taedok Institute of Technology in Korea. Dr. Park has designed and developed electronic control systems for real-time soot measurement in diesel particulate traps. Also he has researched zinc-bromine and sodium sulfur battery technologies, amorphous silicon solar cell manufacturing, and fuel reformer technologies for industry in Korea.
Since joining CE-CERT in June 1998, he has been involved in the development and application of technologies for detecting and analyzing the composition of fuels and emissions. Other projects include the development of electronic controls for on-road, real-time measurement of emissions from heavy-duty trucks and for extremely low emission passenger cars.
Current projects include the Alternative Fuels and Renewable Energy Research Program at CE-CERT. Dr. Park has established a Gasification Research Laboratory at CE-CERT to investigate the steam pyrolysis and hydro-gasification of candidate carbonaceous waste materials. He is also the principal technical contributor to the UC intellectual property associated with the Steam Hydrogasification Reaction process.
His other research interests include real-time monitoring of chemical species involved in high-temperature and high-pressure reaction with Residual Gas Analyzer, and developing the hydrogen gas sensor for the chemical process.
Tuesday, November 12, 2013.
$10 with a reservation, $5 for Local Section 21 members; students: $0 with reservation, $5 at the door; unemployed/retired: $5 with reservation, $10 at the door.
FOOD: Pizza and soda.
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