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Quincy, IL, United States

Wei L.,Mississippi State University | To S.D.F.,Mississippi State University | Pordesimo L.,ADM Alliance Nutrition Inc. | Batchelor W.,Mississippi State University
International Journal of Energy Research

A promising renewable energy technology is electricity generated with biomass-derived synthetic gas (syngas). The economic feasibility of using biomass gasification for generating electrical power is very much dependent on the cost of the power plant and the cost of its operation. A cost model was developed to analyze the Unit Cost (unit-cost) of electricity generation from micro-scale power facilities that used biomass gasification as its energy input. The costs considered in the model were capital cost and operating costs. The results from the modeling indicated that operating cost was a major part of the total annual production cost of electricity generation, and that labor was the largest part of the total annual production cost of operation, and it was during the time when the power facilities operated at lower generation capacity levels. One effective way of reducing the unit-cost was to operate the facility at high capacity level. The study found that when the capacity level increased the total of annual cost was also increased, but the electricity unit-cost decreased markedly. For a given level of generating capacity, the electricity unit-cost of the facility operating at a two or three shifts operating mode was significantly lower than that of one shift operating mode. Copyright © 2010 John Wiley & Sons, Ltd. Source

Wei L.,South Dakota State University | Wei L.,Mississippi State University | Pordesimo L.O.,Mississippi State University | Pordesimo L.O.,ADM Alliance Nutrition Inc. | And 2 more authors.
Bioresource Technology

Seeking appropriate approaches to utilize the crude glycerol produced in biodiesel production is very important for the economic viability and environmental impacts of biodiesel industry. Gasification may be one of options for addressing this issue. Co-gasification of hardwood chips blending with crude glycerol in various loading levels was undertaken in the study involving a pilot scale fixed-bed downdraft gasifier. The results indicated that crude glycerol loading levels affected the gasifier's performance and the quality of syngas produced. When crude glycerol loading level increased, the CO, CH4, and tar concentrations of the syngas also increased but particle concentration decreased. Though further testing is suggested, downdraft gasifiers could be run well with hardwood chips blending with liquid crude glycerol up to 20 (wt%). The syngas produced had relatively good quality for fueling internal combustion engines. This study provides a considerable way to utilize crude glycerol. © 2011 Elsevier Ltd. Source

Carvalho C.W.P.,Embrapa Food Technology | Takeiti C.Y.,Embrapa Food Technology | Onwulata C.I.,U.S. Department of Agriculture | Pordesimo L.O.,ADM Alliance Nutrition Inc.
Journal of Food Engineering

Corn meal of various particle sizes ranging from 180 to 710 μm were processed in a twin-screw extruder to produce directly expanded extrudates. The extrusion process effects on the specific mechanical energy (SME), expansion indexes (radial, longitudinal and volumetric), pasting viscosity, water absorption index (WAI) texture properties, and microstructure were determined. Increasing the particle size decreased the SME input. Extrudates produced with corn meal of higher particle sizes expanded more than extrudates produced with smaller particle sizes. For all treatments there was no peak viscosity at 95 °C. But expanded corn meal extrudate from the 180 μm fraction showed a discontinuous gel matrix phase. Increasing corn meal particle size decreased WAI values. The mechanical resistance of the extrudates from the smallest particle size was significantly higher (p < 0.05) than that of the largest particle size. The microstructure of raw corn meal revealed large fractured particles with small rounded particles adhering to the surface. © 2009 Elsevier Ltd. Source

ADM Alliance Nutrition Inc. | Date: 2015-04-30

medicated and non-medicated dairy cow feed supplements. animal feed for dairy cows.

ADM Alliance Nutrition Inc. | Date: 2015-04-30

medicated and non-medicated livestock feed supplements; medicated livestock feeds. non-medicated livestock feeds.

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