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William Jacoby Associate Professor

William Jacoby is an associate professor in the Bioengineering Department. He is also an adjunct professor in the Chemical Engineering Department. He directs the Modular Biomass Process Development Laboratory focusing on upstream processing, thermochemical conversion and downstream processing of biomass into energy fuels and chemicals. Upstream processing projects include innovative approaches to dewatering and applications of fluid power for feeding three phases (solids, liquids and vapors) into a high-pressure, high-temperature environment. Conversion projects include catalyst-mediated biomass gasification and combustion in supercritical water and applications of nanotechnology for biomass thermochemical conversion. Downstream processing projects include equilibrium phase separations of solids, liquids and vapors at high-pressure and high-temperature (including carbon sequestration) and hot gas clean up. The extraction of lipids from soybeans and other types of oil plants using supercritical fluids is also under investigation. In this context, an exploration of the microalgae-to-oil process has begun involving an exploration of photobioreactor design, harvesting, dewatering, extraction and transesterification. This work draws on past interests in photocatalysis and microalgal hydrogen production. A systems approach is also adopted during the development of a comprehensive biomass use model.

RECENT JOURNAL ARTICLES

Hendry, D., Miller, A., Wilkinson, N., Wickramathilaka, M., Espanani, R. and Jacoby, W. A. “Exploration of High Pressure Separations of Nitrogen and Carbon Dioxide.” Journal of CO2 Utilization 3–4 (2013) 37–43.Wilkinson, N., Hendry, D., Venkitasamy, C. and Jacoby, W.A. “Study of process variables in supercritical carbon dioxide extraction of soybeans.” Food Science and Technology International 20(1) (2013), 63-70.Wilkinson, N., Wickramathilaka, M., Hendry, D., Miller, A., Espanani, R., and Jacoby, W.A. “Rate determination of supercritical water gasification of primary sewage sludge as a replacement for anaerobic digestion.” Bioresource Technology, 124 (2012) 269–275

Miller, A., Hendry, D., Jacoby, W.A. “Gasification of Algae in Supercritical Water to Produce High-value Fuel Gas.” Bioresource Technology, 119 (2012) 41–47.

Hendry, D., Miller, A., Jacoby, W.A. “Turbulent Operation of a Plug Flow Reactor for Gasification of Alcohols in Supercritical Water.” Industrial Engineering & Chemistry Research, 2012, 51, 2578−2585.

Venkitasamy, C., Hendry, D., Wilkinson, N., Fernando, L. and Jacoby, W. A. “Investigation of thermochemical conversion of biomass in supercritical water using a batch reactor.” Fuel 90 (2011), pp. 2662-2670.

Hendry, D., Venkitasamy, C. Wilkinson, N. and Jacoby, W.A. “Exploration of the effect of process variables on the production of high-value fuel gas from glucose via supercritical water gasification” Bioresource Technology 102 (2011) 3480–3487.

WORKING TITLES FOR OUR CURRENT RESEARCH

“Oxidation of Simulated Sewage Sludge in Supercritical Water Using a Plug Flow Reactor:  Experimental Determination of Mass Balance and Rate Parameters.”“Gasification of Simulated Sewage Sludge in Supercritical Water Using a Plug Flow Reactor:  Experimental Determination of Mass Balance and Rate Parameters.”“Oxidation of Simulated Sewage Sludge in Supercritical Water:  Determination of the Fate of Nitrogen and Phosphorous.”

“Gasification of Simulated Sewage Sludge in Supercritical Water:  Determination of the Fate of Nitrogen and Phosphorous.”

“Exploration of High Pressure Separation of Fuel Gases and Carbon Dioxide.”

“Supercritical Water Gasification of Motor Oil, Alcohols, Algae and Simulated Sewage Sludge:  Establish Link Between Batch and Continuous Processing.”


Technical Focus

  • Air-cleaning applications
  • Conversion of biomass to fuels
  • Renewable energy technologies

Education

  • PhD and BS from the University of Colorado

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