Stephanie Wettstein, PhD

Stephanie Wettstein, PhD

Assistant Professor

Phone: 406-994-5928
Office: 312 Cobleigh Hall

Mailing Address:
PO Box 173920
Bozeman, MT 59717-3920

Shipping Address:
306 Cobleigh Hall
Bozeman, MT 59717-3920


  • ECHM 323: Chemical Engineering Mass Transfer Operations
  • ECHM/EBIO 442: Chemical Engineering/Bioengineering Laboratory I 
  • ECHM 510: Graduate Reaction Engineering


  • Postdoc - University of Wisconsin-Madison (Chemical Engineering)
  • Ph.D. - University of Colorado-Boulder (2010; Chemical Engineering)
  • Process Engineer at Kimberly-Clark Corporation (2002-2005)
  • B.S. - University of Wisconsin-Stevens Point (Paper Science)

Awarded Grants

  • 2017: NSF CBET - Energy for Sustainability
  • 2013: ACS Petroleum Research Fund - New Investigator Grant

Research Interests

Synthesis of platform chemicals, specialty chemicals, and biofuels from lignocellulosic biomass using novel catalytic and separation processes.

The overall goal is to increase the sustainability of biofuels and chemicals produced from lignocellulosic biomass by improving processing methods, increasing reaction rates, and increasing the yields of biomass carbon that is converted into biofuels and chemicals. This includes developing novel, high yield biomass deconstruction methods, improved biomass conversion processes to increase catalyst stability, and separation methods using zeolite membranes.

Current Lab Openings

Graduate Students

**Potential graduate student researchers must first fill out the inquiry form (no fee required)** If you are interested in joining my laboratory, please fill out the pre-application form and then contact me at the email above. I will be happy to discuss the opportunities below with you if you meet the proper qualifications. Applicants must have exceptional qualifications and should consider applying for an external fellowship.

Undergraduate Students

If you are interested in joining my laboratory, please stop by my office or contact me at the email above. I will be happy to discuss the opportunities below with you if you meet the proper qualifications. Applicants must have exceptional qualifications and should consider applying for an external fellowship, such as the USP.

There are currently no open positions.


19)   Wettstein, S.G., “Self-paced, active problem-solving using immediate feedback (IF-AT; scratch-off) forms in large classes,” Advances in Engineering Education, 2017, accepted.

18)   Ilic, B. and Wettstein, S.G., “A review of adsorbate and temperature-induced zeolite framework flexibility,” Micro. and Mesoporous Mat., 239, 2017, 221-234.

17)   Bruce, S.M., Zong, Z., Chatzidimitriou, A., Avci, L.E., Bond, J.Q., Carreon, M.A., Wettstein, S.G., “Small pore zeolite catalysts for furfural synthesis from xylose and switchgrass in a γ-valerolactone/water solvent,” J. Mol. Catal. A.:Chem., 442, 2016, 18-22.

16)   Martin Alonso, Wettstein, S.G., and Dumesic, J.A., “Gamma-valerolactone, a sustainable platform molecule derived from lignocellulosic biomass,” Green Chem., 15, 2013, 584-595.

15)   Gürbüz, E.I., Gallo, J.M.R., Martin Alonso, D., Wettstein, S.G., Lim, W.Y., and Dumesic, J.A., "Conversion of hemicellulose into furfural using solid acid catalysts in γ-valerolactone," Angew. Chem. Int. Ed., 52, 2013, 1270-1274.

14)   Martin Alonso, D., Gallo, J.M.R., Meller, M.A., Wettstein, S.G., and Dumesic, J.A., “Direct conversion of cellulose to levulinic acid and gamma-valerolactone using solid acid catalysts,” Catal.Sci. Tech., 3, 2013, 4, 927-931.

13)   Martin Alonso, D., Wettstein, S.G., Meller, M.A., Gürbüz, E.I., and Dumesic, J.A., “Integrated conversion of hemicellulose and cellulose from lignocellulosic biomass,” Energy Environ.Sci., 2013, 6, 76-80.

12)   Sen, S.M., Martin Alonso D., Wettstein, S.G., Gurbuz, E.I., Henao, C.A., Dumesic, J.A., Maravelias, C., “A sulfuric acid management strategy for the production of liquid hydrocarbon fuels via catalytic conversion of biomass-derived levulinic acid,” Energy Environ.Sci., 2012, 5, 9690-9697.

11)   Sen, S.M., Gurbuz, E.I., Wettstein, S.G., Martin Alonso D., Dumesic, J.A., Maravelias, C., “Production of butene oligomers as transportation fuels using butene for esterification of levulinic acid from lignocellulosic biomass: Process synthesis and technoeconomic evaluation,” Green Chem., 2012, 14, 3289-3294.

10)   Martin Alonso D., Wettstein, S.G., Dumesic, J.A., “Bimetallic catalysts to upgrade biomass to fuels and chemicals,” Chem. Soc. Rev., 2012, 41, 8075-8098. (Inside cover image)

9)     Wettstein, S.G., Martin Alonso D., Chong, Y., Dumesic, J.A., “Production of levulinic acid and gamma-valerolactone (GVL) from cellulose using GVL as a solvent in biphasic systems,” Energy Environ.Sci., 2012, 5, 8199-8203.

8)     Wettstein, S.G., Martin Alonso D., Gürbüz, E.I., Dumesic, J.A., “A roadmap for conversion of lignocellulosic biomass to chemicals and fuels,” Curr. Opin. Chem. Eng., invited opinion, 2012, 1, 218-224. (#1 Hottest article for July to Sept. 2012)

7)     Wettstein, S.G., Bond, J.Q., Martin Alonso D., Pham, H.N., Datye, A.K., Dumesic, J.A., “RuSn bimetallic catalysts for selective hydrogenation of levulinic acid to γ-valerolactone,” Applied Cat. B. Envion., 117-118, 2012, 321-329.

6)     Gürbüz, E.I., Wettstein, S.G., Dumesic, J.A., “Conversion of hemicellulose to furfural and levulinic acid using biphasic reactors with alkylphenol solvents,” ChemSusChem., 2012, 5, 383-387.

5)     Martin Alonso D., Wettstein, S.G., Bond, J.Q., Dumesic, J.A., “Production of biofuels from cellulose and corn stover using alkylphenol solvents,” ChemSusChem, 2011, 4, 1078-1081.

4)     Sorenson, S.G., Payzant, E.A., Gibbons, W.T., Soydas, B., Kita, H., Noble, R.D., Falconer, J.L., “Influence of zeolite crystal expansion/contraction on NaA zeolite membrane separations,” J. Mem. Sci., 2010, 366, 413-420.

3)     Sorenson, S.G., Payzant, E.A., Noble, R.D., Falconer, J.L., “Influence of crystal expansion/contraction on zeolite membrane permeation,” J. Mem. Sci., 2010, 357, 98-104.

2)     Sorenson, S.G., Smyth, J.R., Noble, R.D., Falconer, J.L., “Correlation of silicalite-1 crystal expansion and MFI membrane properties,” Ind. Eng. Chem. Res., 2009, 48, 10021-10024.

1)     Sorenson, S.G., Smyth, J.R., Kocirik, M., Zikanova, A., Noble, R.D., Falconer, J.L., “Adsorbate-induced expansion of silicalite-1 crystals,” Ind. Eng. Chem. Res., 2008, 47, 9611-9616.