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Chemical and Biological Process Development

Andy Zwoster

Andy Zwoster

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352


Andy Zwoster is an experienced technician in microbiological, chemical process and mechanical fields. His experience includes operation, maintenance and modifications to experimental reactor systems. Research areas include the study of filamentous fungi for conversion of biomass feedstocks to fuels or chemical products and CO2 capture from exhaust gas emission sources.

Education and Credentials

  • AAAS Biotechnology SCC

PNNL Publications


  • Fifield LS, M Correa, Jr, and A Zwoster. 2017. Crystal River 3 Cable Materials for Thermal and Gamma Radiation AgingPNNL-26785, Pacific Northwest National Laboratory, Richland, WA. 
  • Whyatt GA, A Zwoster, F Zheng, RJ Perry, BR Wood, I Spiry, CJ Freeman, and DJ Heldebrant. 2017. "Measuring CO2 and N2O Mass Transfer into GAP-1 CO2-Capture Solvents at Varied Water Loadings." Industrial Engineering Chemistry Research 56(16):4830-4836.  doi:10.1021/acs.iecr.7b00193


  • Fifield LS, Q Huang, MI Childers, M Correa, Jr, Y Shin, and A Zwoster. 2016. Progress in Characterizing Thermal Degradation of Ethylene-Propylene RubberPNNL-25713; M3LW-16OR0404014, Pacific Northwest National Laboratory, Richland, WA. 
  • Whyatt GA, CJ Freeman, A Zwoster, and DJ Heldebrant. 2016. "Measuring Nitrous Oxide Mass Transfer into Non-Aqueous CO2BOL CO2 Capture Solvents." Industrial and Engineering Chemistry Research 55(16):4720-4725.  doi:10.1021/acs.iecr.6b00390
  • Zheng F, DJ Heldebrant, PM Mathias, PK Koech, M Bhakta, CJ Freeman, MD Bearden, and A Zwoster. 2016. "Bench-Scale Testing and Process Performance Projections of CO2 Capture by CO2-Binding Organic Liquids (CO2BOLs) With and Without Polarity-Swing-Assisted Regeneration." Energy and Fuels 30(2):1192-1203.  doi:10.1021/acs.energyfuels.5b02437



  • Zhang J, IV Kutnyakov, PK Koech, A Zwoster, CJ Howard, F Zheng, CJ Freeman, and DJ Heldebrant. 2013. "CO2-Binding-Organic-Liquids-Enhanced CO2 Capture using Polarity-Swing-Assisted Regeneration." Energy Procedia 37:285-291.  doi:10.1016/j.egypro.2013.05.113
  • Mathias PM, K Afshar, F Zheng, MD Bearden, CJ Freeman, T Andrea, PK Koech, IV Kutnyakov, A Zwoster, AR Smith, PG Jessop, OG Nik, and DJ Heldebrant. 2013. "Improving the Regeneration of CO2-Binding Organic Liquids with a Polarity Change." Energy and Environmental Science 6(7):2233-2242.  doi:10.1039/C3EE41016A


  • Collett JR, RW Heck, and A Zwoster. 2011. "Dissolved carbonic anhydrase for enhancing post-combustion carbon dioxide hydration in aqueous ammonia." Energy Procedia 4:240-244.  doi:10.1016/j.egypro.2011.01.047

Chemical and Biological Process Development

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