RECENT PUBLICATIONS
2007
Wright,
M. and Brown, R. C., Comparative economics of biorefineries based on the
biochemical and thermochemical platforms, Biofuels, Bioprocessing, and
Biorefineries 1, 49-56, 2007.
Brown,
R. C. , Hybrid thermochemical/biological processing of biomass, Applied
Biochemistry and Biotechnology 137-140, 947 – 956,
2007.
Young,
D., Smeenk, J., Broer, K. M., Kisting, C. J., Brown, R., Heindel, T. J., Bobik,
T., and DiSpirito, A. A., Growth of Rhodospirillum rubrum on Synthesis Gas:
Conversion of CO to H2 and Poly-b-hydroxyalkanoate, Biotechnology and
Bioengineering, accepted for publication (2007).
Lloyd,
H., Cooper, A. T., Fan, M., Brown, R. C., Sawyer, J., van Leeuwen, J., Shi, Y.,
Li, N., Zhang, W. , Pilot plant evaluation of PFS from coal-fired power plant
waste, Chemical Engineering and Processing 46(3) 257-261, 2007.
2006
Zhang,
R., Wang, Y., and Brown, R. C. Steam reforming of tar compounds over Ni/Olivine
catalysts doped with CeO2, Energy Conversion and Management, 48, 68-77, 2006.
Singh,
S., Norton, G. A., Fan, M., Brown, R. C., van Leeuwen, J. Thermoanalytical
studies of byproduct streams from dry-mill ethanol production, Chem. Eng. &
Processing 45, 618-623, 2006.
Xu, M.,
Brown, R. C., and Norton, G., “Effect of sample aging on the accuracy of the
International Energy Agency’s tar measurement protocol,” Energy & Fuels 20,
262-264, 2006.
Brown,
R. C., Chapter 19. Resource Availability, Section 19.4 Biomass, CRC Handbook of
Energy Conservation and Renewable Energy, Kreith, F. and Goswami, Y., Eds., CRC
Press, 2006.
Brown,
R. C., Chapter 24. Biomass Energy Conversion, Section 24.2 Power Generation, CRC
Handbook of Energy Conservation and Renewable Energy, Kreith, F. and Goswami,
Y., Eds., CRC Press, 2006.
Brown,
R. C., Chapter 24. Biomass Energy Conversion, Section 24.3 Bio-fuels, CRC
Handbook of Energy Conservation and Renewable Energy, Kreith, F. and Goswami,
Y., Eds., CRC Press, 2006.
2005
Brown,
R. C., Biomass Refineries based on Hybrid Thermochemical/Biological Processing–
An Overview, in Biorefineries, Biobased Industrial Processes and Products, Kamm,
B., Gruber, P. R., Kamm, M., Eds., Wiley-VCH Verlag, Weinheim, Germany, 2005.
Xu, M.,
Brown, R. C., Norton, G., and Smeenk, J., “Comparison of a solvent-free tar
quantification method to the International Energy Agency’s tar measurement
protocol, Energy & Fuels 19, 2509-2513, 2005.
Shi, Y.,
Fan, M., Li, N., Brown R. C., and Sung, S. “The recovery of acetic acid with
sulfur dioxide,” Biochemical Engineering Journal, 22(3), 207-210, 2005.
Cummer,
K. and Brown, R. C., “Indirectly heated biomass gasification using a latent heat
ballast. Part 3:
Refinement of the heat transfer model,” Biomass and Bioenergy 28,
321–330, 2005.
Fan, M.,
R. C. Brown, T. D. Wheelock, A. T. Cooper, M. Nomura and Y. Zhuang, “Production
of a complex coagulant from fly ash,” Chemical Engineering Journal, 106(2),
269-277, 2005.
Zhang,
R., Cummer, K., Suby, A., and Brown, R. C., Biomass-derived hydrogen from an
air-blown gasifier,” Fuel Processing Technology
86,
861-874, 2005.
Norton,
G. A. and Brown, R. C., Wet chemical method for determining levels of ammonia in
syngas from a biomass gasifier,
Energy & Fuels, 19, 618-624, 2005.
Khiyami,
M. A., Pometto III, A. L., Brown, R. C. , Detoxification of corn stover and corn
starch pyrolysis liquors by ligninolytic enzymes of Phanerochaete chrysporium,
Journal of Agricultural and Food Chemistry 53, 2969-2977, 2005.
Butler,
A. D., Fan, M., Brown, R. C., van Leeuwen, J., Sung, S. and Duff, B., “Pilot
scale tests of poly ferric Sulfate synthesized using SO2 in Des Moines Water
Works,” Chemical Engineering and Processing, 44, 413-419, 2005.
Shi, Y.,
M. Fan, Ming, X., Brown, R. C. and van Leeuwen, H., “The extraction of lactic
acid with sulfur dioxide,” Biochemical Engineering Journal 24 (2), 157-160,
2005.
Chuang, C.L.,
Fan, M.,
Xu, M.,
Brown, R.C.,
Sung, S.,
Saha, B.,
Huang, C.P.,
“Adsorption of arsenic(V) by activated carbon prepared from oat hulls,”
Chemosphere 61(4), 478-483, 2005.
2004
Falkowski, D. and Brown, R., “Analysis of pressure fluctuations in fluidized beds,” Ind. Eng. Chem. Res. 43, 5721-5729, 2004.
Sandvig, E., Walling, G., Daugaard, D., Pletka, R., Radlien, D., Johnson, W., and Brown, R.C., "The prospects for integrating fast pyrolysis into biomass power systems," International Journal of Power and Energy Systems, 24(3), 228-38, 2004.
Fan, M., W. Marshall, D. Daugaard, and R. C. Brown, “Production of activated carbon from fast pyrolysis of oat hulls and corn stover,” Bioresource Technology 93(1) 103-107, 2004.
Zhang, T., W. P. Walawender, L. T. Fan, M. Fan, D. Daugaard and R. C. Brown, Production of activated carbons by physical activation chars from agricultural and forest residues, Chemical Engineering Journal, 105(1-2), 53-59, 2004.
Zhang, R., Brown, R., Suby, A., and Cummer, K., “Catalytic destruction of tar in biomass-derived producer gas,” Energy Conversion and Management 45 (7-8), 995-1014, 2004.
Zhang, R., Brown, R. C., and Suby, A., “Thermochemical generation of hydrogen from switchgrass,” Energy and Fuels 18, 251-256, 2004
Mérida, W., Maness, P., Brown, R. C., and Levin, D. B., “Enhanced hydrogen production and removal of carbon dioxide from indirectly heated biomass gasification,” International Journal of Hydrogen Energy 29, 283-290, 2004
Butler, D. A., Fan, M., Brown, R. C., Leeuwen, J. V. and Sung, S., “Absorption of Dilute SO2 Gas Stream with Conversion to Polymeric Ferric Sulfate for Use in Water Treatment,” Chemical Engineering Journal, 98, 265-273, 2004
Fan, M., Norton, G. A, and Brown, R. C., “A novel Hg control technology derived from quantum chemistry,” Chemical Engineering Journal 104 (1-3) 93-95, 2004.
Butler, A. D., Fan, M., Brown, R. C., van Leeuwen, J., Sung, S., and Duff, B., “Pilot-scale tests of poly ferric sulfate synthesized using SO2 at Des Moines Water Works,” Chemical Engineering and Processing 44(3), 413-419, 2004.
Ritzert, J., Brown, R. C., and Smeenk, J., “Filtration efficiency of a moving bed granular filter,” Proceedings of the Science in Thermal and Chemical Biomass Conversion Conference, Victoria, B.C., Canada, Aug. 30 – Sept. 2, 2004.
Sadaka, S., Brue, C., and Brown, R. C., “Mass and energy balances on a ballasted gasifier,” Proceedings of the Science in Thermal and Chemical Biomass Conversion Conference, Victoria, B.C., Canada, Aug. 30 – Sept. 2, 2004.
Daugaard, D. E. and Brown, R. C., “The transport phase of pyrolytic oil exiting a fast fluidized bed reactor,” Proceedings of the Science in Thermal and Chemical Biomass Conversion Conference, Victoria, B.C., Canada, Aug. 30 – Sept. 2, 2004.
Zhang, R., Wang, Y., Brown, R. C., and Dinga, X., “Development of catalysts for methane and tar compound reforming,” Proceedings of the Science in Thermal and Chemical Biomass Conversion Conference, Victoria, B.C., Canada, Aug. 30 – Sept. 2, 2004.
Brown, R. C., Smeenk, J., Sadaka, S., Norton, G., Xu, M., Brown, N., and Brue, C., “Thermochemical production of hydrogen from biomass,” Proceedings of the Second World Conference and Technology Exhibition on Biomass for Energy, Industry, and Climate Protection, Rome, Italy, May 10 – 14, 2004.
2003
Brown, R. C., Biorenewable Resources: Engineering New Products from Agriculture, Iowa State Press, April 2003.
Brown, R. C., Shi, H., Colver, G., and Soo, S.C., "Similitude study of a moving bed granular filter," Powder Technology 138 (2-3), 201-210, 2003.
Daugaard, D. E. and Brown, R. C., “Enthalpy for pyrolysis for several types of biomass,” Energy and Fuels 17, 934-939, 2003.
Norton, G. A., Yang, H., Brown, R. C., Laudal, D. L., Dunham, G. E., and Erjavec, J., “Heterogeneous oxidation of mercury in simulated post combustion conditions,” Fuel 82, 107-116, 2003.
Fan, M., R. C. Brown, M. Nomura and Y. Zhuang, Relationships among loss-on-ignitions and unburned carbons as well as FTIR photoacoustic spectrum of fly ashes, International Journal of Environment and Pollution 19(3), 301-309, 2003.
Fan, M., Brown, R. C., Van Leeuwen, J., Nomura, M., and Zhuang, Y., "The kinetics of producing sulfate based complex coagulant from fly ash,” Chemical Engineering and Processing 42(12) 1019-1025, 2003.
Fan, M. R. C. Brown, S. Sung, “Photoacoustic measurement of iron in composite coagulant, Chemical Engineering and Process,” 42(7), 553-559, 2003.
Fan, M., R. C. Brown, Y. Zhuang, A. T. Cooper and M. Nomura, Reaction kinetics for a novel flue gas cleaning technology, Environmental Science and Technology, 37(7), 1404-1407, 2003.
Fan, M., R. C. Brown, S. Sung, C. P. Huang, S. K Ong, and J (Hans) Van Leeuwen, Comparison of polymeric and conventional coagulants in arsenic (V) removal, Water Environment Research, 75(4) 308-313, 2003.
2002
Cummer, K. and Brown, R. C., “Ancillary equipment for biomass gasification,” Biomass and Bioenergy 23, 113 – 128, 2002.
Fan, M., Brown, R. C. and Huang, C. P., “Preliminary
studies of arsenic (III) oxidation by potassium ferrate,” International Journal of
Environment and Pollution 18 (1),
91-96, 2002.
Fan, M., Brown, R. C., Sung, S. and Zhuang, Y. “A process for synthesizing polymeric ferric sulfate using sulfur dioxide from coal combustion,” International Journal of Environment and Pollution 17, 102-109, 2002.
Fan, M., Sung, S., Brown, R. C., Wheelock, T. D. and Laabs, F. C., “Synthesis, characterization and coagulation performance of polymeric ferric sulfate,” Journal of Environmental Engineering 128(6), 483-490, 2002.
2001
Fan, M. and Brown, R. C., “Modification of the loss-on-ignition technique to measure unburned carbon in fly ash,” Energy and Fuels 15, 1414-1417, 2001.
Fan, M. and R. C. Brown, Precision and accuracy of photoacoustic measurements of unburned carbon in fly ash,” Fuel 80, 1545-1554, 2001.
Brown, R. C. and Brue, E., “Resolving dynamical features of fluidized beds from pressure fluctuations,” Powder Technology, 119, 68-80, 2001.
Brue, E. and Brown, R. C., “Use of pressure fluctuations to validate hydrodynamic similitude in fluidized media: Bubbling beds,” Powder Technology 119, 117-127, 2001.
Pletka, R., Brown, R. C., and Smeenk, J., “Indirectly heated biomass gasification using a latent heat ballast. Part 1: Experimental evaluations,” Biomass and Bioenergy 20, 297 – 305, 2001.
Pletka, R., Brown, R. C., and Smeenk, J., “Indirectly heated biomass gasification using a latent heat ballast. Part 2: Computational model,” Biomass and Bioenergy 20, 307 –315, 2001.
Hendrich, S., Fan, M.,
Sung, S. W., Brown, R. C., Lebepe-Mazurl, S., Myers, R., Osweiler, G. “Toxicity
evaluation of polymeric ferric sulfate,” Int. J. Environmental Technology and
Management 1, 464-471, 2001.
Battaglia, F., Brown, R. C., and Flugrad, D. R., “ABET EC 2000: Developing Assessment Tools for Continuous Improvement,” Proceedings of the 2001 ASEE Conference.
Fan, M. and Brown, R. C., “Modification of the Loss-on-Ignition technique to measure unburned carbon in fly ash,” Fuel 80, 1545-1554, 2001.
Brown, R. C., Smeenk, J., and Wistrom, C., “Design of a moving bed granular filter for biomass gasification,” Proceedings of the Progress in Thermochemical Biomass Conversion Conference, Tyrol, Austria, September 17-22, 2000.
2000
Brown, R. C., Lin, Q., and Norton, G., Catalytic effects observed
during the co-gasification of coal and switchgrass," Biomass and Bioenergy 18, 499-506, 2000.
1999
Brown, R. C., "Capturing Solar Energy Through Biomass," Chapter in
Principles of Solar Engineering, Second Edition, D. Y. Goswami, F. Kreider, and F. Kreith,
Eds., Taylor & Francis, Washington, D.C., 1999.
So, K. and Brown, R.C., "Economic analysis of selected lignocellulose-to-ethanol conversion technologies," Applied Biochemistry and Biotechnology, Vol. 77-79, pp. 633-640, 1999.
Smeenk, J., Brown, R. C. and Eckels, D., “Determination of Vapor Phase Alkali Content During Biomass Gasification,” Proceedings of the Fourth Biomass Conference of the Americas, Volume 2, pp. 961-967, Oakland, CA, August 29-September 2, 1999.
Sweterlitsch, J. and Brown, R. C., “NOx Emissions Reduction: An Application of Biomass Reburning Technology,” Proceedings of the Fourth Biomass Conference of the Amercias, Volume 2, pp. 1329-1334, Oakland, CA, August 29-September 2, 1999.
1998
Brown, R. C., and S. Overmann, “The influence of particle thermal time constants on convection coefficients in bubbling fluidized beds,” Powder Technology, 98, 13-20, 1998.
Overmann, S. P., R. C. Brown, and N. S. Grewal, “Prediction of heat transfer in prototype fluidized reactors from scale-model data,” Chemical Engineering Science, 53, 807-817, 1998.
Lim, C. K., P. A. Molian, R. C. Brown, and J. M. Prusa, "Numerical studies of gas jet/molten layer interaction during laser cutting," ASME Journal of Manufacturing Science and Engineering, 120, 496-503, 1998.
Pletka, R., Brown, R. C. and Smeenk, J., “Indirectly heated fluidized bed biomass gasification using a latent heat ballast,” BioEnergy ’98 Conference, Madison, WI, October 4-8, 1998.
Smeenk, J. and Brown, R. C., “Experience with atmospheric fluidized bed gasification of switchgrass,” BioEnergy ’98 Conference, Madison, WI, October 4-8, 1998.
So, K. and Brown, R. C., “Economic analysis of ethanol production from switchgrass using hybrid thermal/biological processing,” BioEnergy ’98 Conference, Madison, WI, October 4-8, 1998.
So, K. and Brown, R.C., “Economic analysis of selected lignocellulose-to-ethanol conversion technologies,” Proceedings of the Conference on Biotechnology for Fuels and Chemicals, Gatlinburg, TN, May 4-7, 1998.
1997
Smeenk, J., R. C. Brown, M. R. Dawson, E. Simpkins, and G. Steinfeld, “Evaluation of an integrated gasification/fuel cell power plant,” Proceedings of the Third Biomass Conference of the Americas, Montreal, Canada, August 24-29, 1997.
1996
Stobbe, S., J. Oatley, and R. C. Brown, "Indirectly-heated
biomass gasification using latent-heat ballasting of a fluidized reactor," Proc.
31st Intersociety Energy Conversion Engineering Conference, Washington, D.C., August
11-16, 1996.
Waller, D. J. and R. C. Brown, "Photoacoustic response of unburned carbon in fly ash to infrared radiation," Fuel 75, 1568-1574, 1996.
Koffman, S. F., R. C. Brown, and R. R. Fullmer "Control of a fluidized bed combustor using fuzzy logic," ASME Journal of Engineering for Gas Turbines and Power 118, 204-209, 1996.
Brown, R., J. Colletti, and A. Hallem, "Factors influencing the adoption of biomass energy systems," Proc. Fifth World Congress of Chemical Engineering, San Diego, CA, July 14-18, 1996.
Brue, E. and R. C. Brown, "Validation of hydrodynamic similitude in fluidized beds via pressure fluctuations," Proc. Fifth World Congress of Chemical Engineering, San Diego, CA, July 14-18, 1996.
Overmann, S. and R. C. Brown, "Heat transfer similitude in fluidized beds," Proc. Fifth World Congress of Chemical Engineering, San Diego, CA, July 14-18, 1996.
Brue, E. and R. C. Brown, "Solids loading vs. solids flux as an independent parameter in CFB similitude studies," AIChE Annual Meeting, Chicago, IL, November 10-15, 1996.
1995
Waller, D. J. and R. C. Brown, "Sensitivity and accuracy of a new instrument to
measure carbon in fly ash," Proc. 1995 International Joint Power Generation
Conference, Minneapolis, MN, Oct. 9-11, 1995.
Stobbe, S., R. C. Brown, R. Dawson, and C. Chriswell, "Feasibility of burning or gasifying obsolete seed corn," Proc. 1995 International Joint Power Generation Conference, Minneapolis, MN, Oct. 9-11, 1995.
Dykstra, J. R. and R. C. Brown, "Comparison of optically- and microwave-excited photoacoustic detection of unburned carbon in entrained fly ash," Fuel 74, 368-373, 1995.
Brown, R.C. and J. Dykstra, "Systematic errors in the use of loss-on-ignition to measure unburned carbon in fly ash," Fuel 74, 570-574, 1995.
Thiede, T., and R. C. Brown, "Evaluation of sulfation rates using transient emission profiles from a fluidized combustor," Proc. 12th International Pittsburgh Coal Conference, Pittsburgh, PA, Sept. 11-15, 1995, pp. 206-211.
Raines, T. and R. C. Brown, "Coal devolatilization and char combustion study using FTIR spectroscopy," Proc. 12th International Pittsburgh, Coal Conference," Pittsburgh, PA, Sept. 11-15, 1995, pp. 212-217.
Waller, D. J. and R. C. Brown, "The measurement of unburned carbon in fly ash and using infrared photoacoustics," Proc. 12th International Pittsburgh Coal Conference, Pittsburgh, PA, Sept. 11-15, 1995, pp. 417-422.