Show simple item record

dc.contributor.authorCurrie, Robert
dc.date.accessioned2019-04-22 17:14:43 (GMT)
dc.date.available2019-04-22 17:14:43 (GMT)
dc.date.issued2019-04-22
dc.date.submitted2019-04-17
dc.identifier.urihttp://hdl.handle.net/10012/14542
dc.description.abstractProducing synthetic chemicals and fuels using CO2 as a feedstock through the thermocatalytic hydrogenation of CO2 via the Sabatier reaction to produce synthetic CH4 is both a CO2 emissions reduction strategy and an intermittent energy storage solution. A simulation-based study of novel Sabatier reactor configurations was performed to study the effect a distributed H2 supply would have on Ni-based catalyst deactivation and to optimize the production of CH4 for the purposes of evaluating the economic feasibility of a renewable natural gas production facility. First, a heat-exchanger type, molten salt-cooled membrane reactor is analyzed using a transient mathematical model that accounts for dynamic catalyst deactivation. The simulation results showed significantly lower catalyst deactivation rates in the membrane reactor due to the distributed H2 supply that results in more uniform temperature distribution. The model predicts that, with a proper selection of operating parameters, it is possible to achieve CO2 conversions over 95% over extended periods of operation (10,000 h). Next, a heat-exchanger type, actively cooled Sabatier reactor is analyzed using a transient mathematical model to assess its techno-economic feasibility. Effect of cooling fluid, space velocity, and cooling rate on reactor performance was investigated. Simulation results show that with a proper selection of operating parameters, it is possible to achieve CO2 conversions more than 90% with 100% CH4 selectivity over extended periods of operation for a renewable natural gas production cost of $15/GJ with electricity at $0.05/kWh.en
dc.language.isoenen
dc.publisherUniversity of Waterlooen
dc.subjectCO2 conversionen
dc.subjectrenewable natural gasen
dc.subjectSabatier reactoren
dc.subjectpacked bed reactoren
dc.subjectmembrane reactoren
dc.subjectcatalyst deactivationen
dc.subjectdistributed H2 supplyen
dc.titleDesign and Simulation of Novel Sabatier Reactors for the Thermocatalytic Conversion of CO2 into Renewable Natural Gasen
dc.typeMaster Thesisen
dc.pendingfalse
uws-etd.degree.departmentChemical Engineeringen
uws-etd.degree.disciplineChemical Engineeringen
uws-etd.degree.grantorUniversity of Waterlooen
uws-etd.degreeMaster of Applied Scienceen
uws.contributor.advisorSimakov, David
uws.contributor.advisorFowler, Michael
uws.contributor.affiliation1Faculty of Engineeringen
uws.published.cityWaterlooen
uws.published.countryCanadaen
uws.published.provinceOntarioen
uws.typeOfResourceTexten
uws.peerReviewStatusUnrevieweden
uws.scholarLevelGraduateen


Files in this item

Thumbnail

This item appears in the following Collection(s)

Show simple item record


UWSpace

University of Waterloo Library
200 University Avenue West
Waterloo, Ontario, Canada N2L 3G1
519 888 4883

All items in UWSpace are protected by copyright, with all rights reserved.

DSpace software

Service outages