NAME Roger Hilten TITLE Research Engineer DEPARTMENT Biological and Agricultural Engineering PHONE 706-542-0940 FAX 706-542-8806 ADDRESS Driftmier Engineering Center University of Georgia Athens, Georgia 30602 EMAIL rog@uga.edu EDUCATION M.S., Biological Engineering, University of Georgia B.S., Ecology, University of Georgia RESEARCH INTERESTS Bioenergy, Biofuels, Bioproducts, Biodiesel, Thermochemical and catalytic processing

Roger Hilten

SUMMARY OF RESEARCH DIRECTIONS

For two years, Roger Hilten has been managing the Biorefinery's analytical laboratory and equipment. He has worked to develop novel ways to test the properties of bio-based products using state-of-the-art analytical tools including thermal analysis, mass spectroscopy, and FTIR.

Hilten's research focuses on producing better biofuels and bio-based products from widely-available feedstocks in Georgia using processes including pyrolysis and gasification. The production of high quality end products is accomplished through pre-processing of biomass feedstock, catalysis during processes, and post-processing to optimize characteristics.

PATENT

Hilten, R., Kastner, J.R., Das, K.C., Bibens, B. 2009. Producing higher quality bio-oils by in-line esterification of pyrolysis vapor with ethyl alcohol. Patent Disclosure. University of Georgia.

SELECTED PUBLICATIONS

B. Bibens, R. Hilten, and K.C. Das. 2009. Temperature effects on palm oil residues during slow pyrolysis.  To submitted to Fuel, Fall.

Hilten, R. H., T. M. Lawrence, and E. W. Tollner.  2009. Modeling energy load effects associated with green roofing. To be submitted to Energy and Buildings, Fall.

Hilten, R., B. Bibens, J. Kastner, K.C. Das. 2009. Producing higher quality bio-oils by inline esterification of pyrolysis vapor with ethyl alcohol.  To be submitted to Energy and Fuels, Summer.

Hilten, R.H. and T.M. Lawrence. 2007. Using Green Roof and Other Technologies for Reducing the Need for Stormwater Retention Capacity.  Low Impact Development: New and Continuing Applications.  Second National Low Impact Development Conference, March 12-14, 2007, Wilmington, NC.  ASCE Conf. Proc. 331, 21 (2007): 226-239

Hilten, R. H., T. M. Lawrence, and E. W. Tollner.  2008.  Modeling stormwater runoff from green roofs with HYDRUS-1D.  Journal of Hydrology, 358(3): 288-293.

PRESENTATIONS

Sudahagar Mani, Jim Kastner, Roger Hilten, Gerry Lindo, and KC Das.   Integrating Biomass Torrefaction with Pyrolysis for Improved Bio-Crude Oil Production.  ASABE Annual International Meeting, June 21-24, 2009: Reno, Nevada

Hilten, R.H., T.M. Lawrence. Greenroofing as a stormwater management tool.  Joint Southeastern Stormwater Management and Erosion and Sediment Control Conference, 2005:  Peachtree City, GA.

Hilten, R.H., T.M. Lawrence. Using Green Roof and Other Technologies for Reducing the Need for Stormwater Retention Capacity. Oral presentation at the 2007 2nd National Low Impact Development Conference. Wilmington, NC.

Hilten, R.H., T.M. Lawrence, E.W. Tollner, and D. Gattie. Predicting building energy use and stormwater runoff associated with greenroofs. Oral presentation at the 2006 annual meeting of the American Ecological Engineering Society.

Hilten, R.H., T.M. Lawrence. Greenroofing as a stormwater management tool. Oral presentation at the 2005 Joint Southeastern Stormwater Management and Erosion and Sediment Control Conference.

Hilten, R.H., T.M. Lawrence, and E.W. Tollner. An analysis of the energetics and stormwater mediation potential of greenroofs. Poster presentation at the 2005 annual meeting of the UGA Biological and Agricultural Engineering Department.