2026-09-21T17:41:52Z https://www.ideals.illinois.edu/oai-pmh

oai:www.ideals.illinois.edu:2142/117878 2023-07-11 col_2142_5131 col_2142_11615 com_2142_5130 com_2142_9130 com_2142_8903

Guironnet, Damien S. Guironnet, Damien S. Peters, Baron G. Zimmerman, Steven C. Su, Xiao 2022-05 application/pdf en text Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-05-11 without embargo terms The student, Nicholas Wang, accepted the attached license on 2022-04-20 at 09:47. The student, Nicholas Wang, submitted this Dissertation for approval on 2022-04-20 at 10:01. This Dissertation was approved for publication on 2022-04-21 at 17:32. DSpace SAF Submission Ingestion Package generated from Vireo submission #17833 on 2023-05-11 at 16:57:48 Homogeneous flow catalysis strategies for lab-scale kinetic investigation and reaction development Wang, Nicholas Mason 2022-04-21 Flow Chemistry Organometallics Heterogenization Reactor Engineering Predicated on vapor-liquid separations, we have developed methodologies to effectively immobilize homogeneous organometallic catalysts within a continuous reactor. Compared to the traditional investigation of these catalysts in a batch system, our advanced analysis under steady-state flow provides chemical insight that is not, otherwise, easily accessible. In this dissertation, we detail the design and implementation of these flow methodologies; and overall, the accumulation of our efforts demonstrates the benefit of coupling engineering and chemistry fundamentals toward the development of meaningful catalytic reactions. Chapter 1 contains a brief introduction to catalysis in addition to a mini-review of separation technologies used for the continuous processing of homogeneous catalysts. In Chapter 2, we introduce the catalytic ethanol coupling reaction (the Guerbet reaction), and we provide a detailed mechanistic investigation of a homogeneous ruthenium catalyst within a continuously stirred tank reactor. In a second project described in Chapter 3, we develop supported liquid phase catalysts to effectively immobilize two organometallic complexes for study in a packed bed reactor. We begin Chapter 4 with a summary of current polyolefin depolymerization strategies prior to introducing a new chemical depolymerization technique. By implementing tandem catalytic reactions (dehydrogenation, isomerization, and metathesis) we seek to selectively convert polyethylene to monomer (propylene and butene). Chapter 5 contains an extension of our depolymerization efforts to several promising heterogeneous catalysts. Thesis eng https://hdl.handle.net/2142/117878 Copyright 2022 Nicholas Wang Ph.D. Dissertation Chemical Engineering University of Illinois at Urbana-Champaign Chemical & Biomolecular Engr