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Chemical and Biological Process Development

Alan Zacher

Alan Zacher

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352

Biography

Alan joined Pacific Northwest National Laboratory (PNNL) in 1993. During his career at PNNL, he has been involved in a wide variety of research areas including catalytic and non-catalytic hydrothermal processing, thermochemical biomass conversion, technology development for waste treatment, domestic and international security efforts, Hanford site related research, as well as practical and platform teaching experience. Notably among them is being on the team that developed PGRS, the commercialized industrial process for producing propylene glycol from renewable resources. Over the years, he has been involved in pilot plant design, construction, commissioning, troubleshooting, and modification of fixed facility and mobile systems both on and off site. Alan is currently working in the field thermochemical conversion of biomass to fuels. His current efforts are mainly associated with biomass pyrolysis and/or catalytic upgrading of bio-oil into fungible fuel blend stocks.

PNNL Patents

Research Interests

  • Biomass conversion to fuels and chemicals
  • Pilot and demonstration plant development

Education and Credentials

  • B.S., Chemical Engineering, Washington State University
  • B.S., Chemistry, Washington State University

Awards and Recognitions

  • Named a Battelle Distinguished Inventor in 2008
  • R&D 100 Award, Propylene Glycol from Renewable Sources (PGRS), Research & Development Magazine, 2010
  • Award for Excellence in Technology Transfer, PGRS, Federal Laboratory Consortium, 2011

PNNL Publications

2017

  • Hubbard LR, CL Arendt, DF Dye, CK Clayton, ME Lerchen, NJ Lombardo, CA Lavender, and AH Zacher. 2017. U-10Mo Baseline Fuel Fabrication Process DescriptionPNNL-26880, Pacific Northwest National Laboratory, Richland, WA. 
  • Li Z, JS Choi, H Wang, AW Lepore, RM Connatser, S Lewis, H Meyer, DM Santosa, and AH Zacher. 2017. "Sulfur-Tolerant Molybdenum Carbide Catalysts Enabling Low-Temperature Stabilization of Fast Pyrolysis Bio-Oil." Energy and Fuels 31(9):9585-9594.  doi:10.1021/acs.energyfuels.7b01707

2016

  • Wang H, SJ Lee, MV Olarte, and AH Zacher. 2016. "Bio-oil stabilization by hydrogenation over reduced metal catalysts at low temperatures." ACS Sustainable Chemistry & Engineering 4(10):5533-5545.  doi:10.1021/acssuschemeng.6b01270
  • Choi JS, AH Zacher, H Wang, MV Olarte, BL Armstrong, H Meyer, II Soykal, and V Schwartz. 2016. "Molybdenum carbides, active and in situ regenerable catalysts in hydroprocessing of fast pyrolysis bio-oil." Green Chemistry 30(6):5016-5026.  doi:10.1021/acs.energyfuels.6b00937
  • Jones SB, LJ Snowden-Swan, PA Meyer, AH Zacher, MV Olarte, H Wang, and C Drennan. 2016. Fast Pyrolysis and Hydrotreating: 2015 State of Technology R&D and Projections to 2017 PNNL-25312, Pacific Northwest National Laboratory, Richland, WA. 
  • Olarte MV, AH Zacher, AB Padmaperuma, SD Burton, HM Job, TL Lemmon, MS Swita, LJ Rotness, Jr, GG Neuenschwander, JG Frye, and DC Elliott. 2016. "Stabilization of Softwood-Derived Pyrolysis Oils for Continuous Bio-oil Hydroprocessing." Topics in Catalysis 59(1):55-64.  doi:10.1007/s11244-015-0505-7

2015

2014

  • White JF, JE Holladay, AH Zacher, JG Frye, and TA Werpy. 2014. "Challenges in Catalytic Manufacture of Renewable Pyrrolidinones from Fermentation Derived Succinate." Topics in Catalysis 57(17):1325-1334.  doi:10.1007/s11244-014-0299-z
  • Elliott DC, TR Hart, GG Neuenschwander, LJ Rotness, Jr, G Roesijadi, AH Zacher, and JK Magnuson. 2014. "Hydrothermal Processing of Macroalgal Feedstocks in Continuous-Flow Reactors ." ACS Sustainable Chemistry & Engineering 2(2):207-215.  doi:10.1021/sc400251p
  • Jones SB, LJ Snowden-Swan, PA Meyer, AH Zacher, MV Olarte, and C Drennan. 2014. Fast Pyrolysis and Hydrotreating 2013 State of Technology R&D and Projections to 2017PNNL-23294, Pacific Northwest National Laboratory, Richland, WA. 
  • Zacher AH, MV Olarte, DM Santosa, DC Elliott, and SB Jones. 2014. "A Review and Perspective of Recent Bio-Oil Hydrotreating Research ." Green Chemistry 16(2):885-896.  doi:10.1039/c3gc41782d
  • Zacher AH, DC Elliott, MV Olarte, DM Santosa, F Preto, and K Iisa. 2014. "Pyrolysis of Woody Residue Feedstocks: Upgrading of Bio-Oils from Mountain-Pine-Beetle-Killed Trees and Hog Fuel." Energy and Fuels 28(12):7510-7516.  doi:10.1021/ef5017945

2013

  • Elliott DC, TR Hart, AJ Schmidt, GG Neuenschwander, LJ Rotness, Jr, MV Olarte, AH Zacher, KO Albrecht, RT Hallen, and JE Holladay. 2013. "Process Development for Hydrothermal Liquefaction of Algae Feedstocks in a Continuous-Flow Reactor ." Algal Research 2(4):445-454. 

2012

  • Santosa DM, AH Zacher, and DE Eakin. 2012. Fast Pyrolysis Conversion Tests of Forest Concepts' Crumbles. PNNL-21256, Pacific Northwest National Laboratory, Richland, WA. 
  • Elliott DC, TR Hart, GG Neuenschwander, LJ Rotness, Jr, MV Olarte, AH Zacher, and Y Solantausta. 2012. "Catalytic Hydroprocessing of Fast Pyrolysis Bio-oil from Pine Sawdust." Energy and Fuels 26(6):3891-3896.  doi:10.1021/ef3004587
  • Elliott DC, TR Hart, GG Neuenschwander, LJ Rotness, Jr, MV Olarte, and AH Zacher. 2012. "Chemical Processing in High-Pressure Aqueous Environments. 9. Process Development for Catalytic Gasification of Algae Feedstocks." Industrial and Engineering Chemistry Research 51(33):10768-10777.  doi:10.1021/ie300933w

2009

  • Elliott DC, GG Neuenschwander, TR Hart, LJ Rotness, Jr, AH Zacher, DM Santosa, C Valkenburt, SB Jones, and SA Tjokro Rahardjo. 2009. Catalytic Hydrothermal Gasification of Lignin-Rich Biorefinery Residues and Algae Final Report PNNL-18944, Pacific Northwest National Laboratory, Richland, WA. 
  • Elliott DC, TR Hart, GG Neuenschwander, LJ Rotness, Jr, and AH Zacher. 2009. "Catalytic Hydroprocessing of Biomass Fast Pyrolysis Bio-oil to Produce Hydrocarbon Products." Environmental Progress & Sustainable Energy 28(3):441-449. 
  • Zacher AH, JE Holladay, JG Frye, HM Brown, DM Santosa, and AA Oberg. 2009. Final Project Report Project 10749-4.2.2.1 2007-2009PNNL-18407, Pacific Northwest National Laboratory, Richland, WA. 

2007

2005

  • Frye JG, AH Zacher, TA Werpy, and Y Wang. 2005. "Catalytic Preparation of Pyrrolidones from Renewable Resources." Chapter 17 in Catalysis of Organic Reactions, ed. John R. Sowa, Jr., pp. 145-154.  Taylor and Francis, Boca Raton, FL. 
  • Frye JG, AH Zacher, TA Werpy, and Y Wang. 2005. "Catalytic Preparation of Pyrrolidones from Renewable Resources." In Twentieth Conference on the Catalysis of Organic Reactions 2004 : Hilton Head Island, S.C. Chemical industries, vol. 104, ed. John R. Sowa, Jr., pp. 145-154.  CRC Press, Boca Raton, FL. 
  • Zacher AH, JG Frye, TA Werpy, and DJ Miller. 2005. "Catalytic Hydrogenolysis of 5-Carbon Sugar Alcohols." Chapter 19 in Catalysis of Organic Reactions; 20th Conference on Catalysis of Organic Reactions 2004 : Hilton Head Island, S.C. Chemical industries, ed. JR Sowa, Jr., pp. 165-173.  CRC Press, Boca Raton, FL. 

2004

  • Elliott DC, GG Neuenschwander, TR Hart, RS Butner, AH Zacher, MH Engelhard, JS Young, and DE McCready. 2004. "Chemical Processing in High-Pressure Aqueous Environments. 7. Process Development for Catalytic Gasification of Wet Biomass Feedstocks." Industrial and Engineering Chemistry Research 43(9):1999-2004. 

2003

  • Elliott DC, GG Neuenschwander, TR Hart, AH Zacher, and RS Butner. 2003. "Low-Temperature Catalytic Gasification of Wet Biomass." Chapter TH-Envisioning the Bioref in AIChE 2003 Annual Meeting Conference Proceedings, p. n/a.  AIChE, New York, NY. 

1999

  • Elliott DC, GG Neuenschwander, MR Phelps, TR Hart, AH Zacher, and LJ Silva. 1999. "Chemical Processing in High-Pressure Aqueous Environments. 6. Demonstration of Catalytic Gasification for Chemical Manufacturing Wastewater Cleanup in Industrial Plants." Industrial and Engineering Chemistry Research 38(3):879-883. 

Chemical and Biological Process Development

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