Stephen Dewitt is a Research Scientist at Arkema. He possess expertise in chemical separations, chemical process engineering, research, fiber spinning, polymer processing and 1 more skills.
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Research ScientistArkemaKing Of Prussia, Pa, Us -
ScientistArkema Jan 2023 - PresentKing Of Prussia -
Postdoctoral Research AssociateMassachusetts Institute Of Technology Dec 2020 - Dec 2022Cambridge, Massachusetts, United StatesMember of Professor Zachary Smith's and Professor T Alan Hatton's groups focusing on advanced manufacturing and materials development for complex chemical separations• Designed and constructed a single line hollow fiber spinning system for the manufacture of a variety of different asymmetric hollow fiber membranes and asymmetric gas diffusion electrodes• Ongoing work focused on the scale-up and spinning of novel porous polymer materials and MOF mixed matrix membranes into hollow fibers for application to a wide range of gas mixture membrane separations• Designing a process to coat the external surface of fiber support with an active layer to work as an integrated hollow fiber gas diffusion electrode for electrochemical CO2 capture from industrial streams• Developed a post-synthetic ligand exchange process for branched MOF materials, a new metastable morphology of porous crystalline filler, and incorporated the mixed ligand crystals into polymer membranes to study fundamental transport properties. -
Doctoral CandidateGeorgia Institute Of Technology Aug 2015 - Dec 2020Atlanta, GeorgiaGraduate Researcher, The Lively Group• Synthesized, manufactured, and scaled up (~100g) sorbent-polymer composite fibers for adsorptive separation of CO2 from flue gas• Developed, in collaboration with a post-doc, an Aspen Plus model to describe the economic pre- and post-treatment of flue gas and CO2 to enable sub-ambient pressure swing capture of CO2 • Designed and manufactured novel microcapsule-sorbent-polymer fiber composite for the management of heat in adsorption processes, testing performance and long-term stability• Microcapsule-polymer composites, developed in tandem with earlier sorbent composites, have shown promise for textile heat management application, resulting in a new project with industry partners to further develop the technology. • Worked in a team of 11 (five faculty, three post-docs, three graduate students) on DOE grant focused on developing a new approach to adsorptive CO2 capture • Mentored and trained three undergraduate students in materials synthesis, scale-up, and adsorptive separations -
Summer InternIdaho National Laboratory May 2015 - Jul 2015Idaho Falls, Id• Developed several models linking secondary steam from nuclear power cycle to chemical processes including High-Temperature Steam Electrolysis, Biomass, Coal, and Natural Gas to Liquids • Collaborated with industry partners analyzing coupling of next-generation nuclear reactors with various chemical processes• Modeling was primarily carried out in Aspen Plus and Aspen HYSYS, briefly worked with Modelica• Participant in Integrated Nuclear-Renewable Energy Systems: Foundational Workshop Report (2014)• Mentored and trained one undergraduate in process modeling and optimization• Poster Presented at 2015 AIChE Student Conference, Atlanta, GA -
Doe Office Of Science Suli InternIdaho National Laboratory May 2014 - Aug 2014Idaho Falls, Id -
Undergraduate Research AssistantVanderbilt University Jun 2013 - Aug 2013Nashville, TnPintauro Group, Dept of Chemical Engineering• Developed a post-treatment strategy for Aquivion ® membranes using thermally assisted stretching• Explored application of treated membranes for Direct-Methanol Fuel Cells• Tested permeation and conductivity of different materials
Stephen Dewitt Skills
Stephen Dewitt Education Details
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Chemical Engineering -
Chemical Engineering
Frequently Asked Questions about Stephen Dewitt
What company does Stephen Dewitt work for?
Stephen Dewitt works for Arkema
What is Stephen Dewitt's role at the current company?
Stephen Dewitt's current role is Research Scientist.
What schools did Stephen Dewitt attend?
Stephen Dewitt attended Georgia Institute Of Technology, University Of Massachusetts Lowell.
What skills is Stephen Dewitt known for?
Stephen Dewitt has skills like Chemical Separations, Chemical Process Engineering, Research, Fiber Spinning, Polymer Processing, Adsorption.
Who are Stephen Dewitt's colleagues?
Stephen Dewitt's colleagues are Heeik Kang, Ahmed Ferradji Ferradji, Arnaud Delouzilliere, Orazio Mister, Cheryl Holmes, Jéssica Lima, Christopher 'moe' Fournier.
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Stephen DeWitt
Deputy Executive Director At Association For Career And Technical EducationWashington, Dc -
3umich.edu, umich.edu, ornl.gov
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Stephen DeWitt
Dublin, Oh
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