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Transformations of Methane and Carbon Dioxide to Chemical Feedstocks, Fuels, and Materials
Transformations of Methane and Carbon Dioxide to Chemical Feedstocks, Fuels, and Materials
Transformations of Methane and Carbon Dioxide to Chemical Feedstocks, Fuels, and Materials

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자료유형  
 학위논문 서양
최종처리일시  
20260209102840
ISBN  
9798290625973
DDC  
000
저자명  
Sun, Edward.
서명/저자  
Transformations of Methane and Carbon Dioxide to Chemical Feedstocks, Fuels, and Materials
발행사항  
[Sl] : Stanford University, 2023
발행사항  
Ann Arbor : ProQuest Dissertations & Theses, 2023
형태사항  
199 p
주기사항  
Source: Dissertations Abstracts International, Volume: 87-01, Section: B.
주기사항  
Advisor: Majumdar, Arunava.
학위논문주기  
Thesis (Ph.D.)--Stanford University, 2023.
초록/해제  
요약Global warming and associated climate change effects are the defining issue of the 21st century and decarbonization of all sectors is imperative to mitigate the worst consequences of climate change. Of particular importance are new, cost-effective, and greenhouse-gas-emissions-free chemical transformation processes to convert CO2into chemicals, fuels, and materials. This is in contrast to today's processes for producing chemicals, fuels, and materials, as nearly every such process produces direct and/or indirect CO2emissions. As a result, the paradigm shift that needs to occur is the transition from fossil-based sources for chemicals, fuels, and materials production to the use of CO2itself to produce these products, as this would allow for negative emissions by sequestering CO2in solid form.However, due to CO2's negligible value from a thermodynamic standpoint; nearly every CO2transformation is endothermic, requiring energy. This required energy can take the form of clean, emissions-free electricity obtained from solar and wind, for example, but widespread proliferation of renewable sources of electricity generation has yet to occur and the challenge of grid-scale energy storage has not yet been adequately addressed. A better alternative for this required energy exists in the form of a co-reactant with high enthalpy, such as CH4. CH4is arguably the most advantageous co-reactant due to its abundance and relatively low cost. Therefore, CH4and CO2are expected to be the feedstocks of the future to produce fuels, chemicals, and materials.Three such processes to transform CO2and CH4to chemical and fuels are discussed at length in this dissertation: 1) low temperature CO2utilization via reverse water-gas-shift chemical-looping, 2) CH4pyrolysis for the production of CO2-free H2and carbon nanotubes, and 3) photocatalytic direct CH4to CH3OH.
일반주제명  
Nuclear reactors
일반주제명  
Carbon sequestration
일반주제명  
Gases
일반주제명  
Oxidation
일반주제명  
Spectrum analysis
일반주제명  
Nuclear magnetic resonance--NMR
일반주제명  
Methane
일반주제명  
Carbon dioxide
일반주제명  
Tuition
일반주제명  
Global warming
일반주제명  
Metal oxides
일반주제명  
Energy
일반주제명  
Chromatography
일반주제명  
Carbon cycle
일반주제명  
Catalysis
일반주제명  
Photocatalysis
일반주제명  
Climate change
기타저자  
Stanford University.
기본자료저록  
Dissertations Abstracts International. 87-01B.
전자적 위치 및 접속  
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MARC

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■1001  ▼aSun,  Edward.
■24510▼aTransformations  of  Methane  and  Carbon  Dioxide  to  Chemical  Feedstocks,  Fuels,  and  Materials
■260    ▼a[Sl]▼bStanford  University▼c2023
■260  1▼aAnn  Arbor▼bProQuest  Dissertations  &  Theses▼c2023
■300    ▼a199  p
■500    ▼aSource:  Dissertations  Abstracts  International,  Volume:  87-01,  Section:  B.
■500    ▼aAdvisor:  Majumdar,  Arunava.
■5021  ▼aThesis  (Ph.D.)--Stanford  University,  2023.
■520    ▼aGlobal  warming  and  associated  climate  change  effects  are  the  defining  issue  of  the  21st  century  and  decarbonization  of  all  sectors  is  imperative  to  mitigate  the  worst  consequences  of  climate  change.  Of  particular  importance  are  new,  cost-effective,  and  greenhouse-gas-emissions-free  chemical  transformation  processes  to  convert  CO2into  chemicals,  fuels,  and  materials.  This  is  in  contrast  to  today's  processes  for  producing  chemicals,  fuels,  and  materials,  as  nearly  every  such  process  produces  direct  and/or  indirect  CO2emissions.  As  a  result,  the  paradigm  shift  that  needs  to  occur  is  the  transition  from  fossil-based  sources  for  chemicals,  fuels,  and  materials  production  to  the  use  of  CO2itself  to  produce  these  products,  as  this  would  allow  for  negative  emissions  by  sequestering  CO2in  solid  form.However,  due  to  CO2's  negligible  value  from  a  thermodynamic  standpoint;  nearly  every  CO2transformation  is  endothermic,  requiring  energy.  This  required  energy  can  take  the  form  of  clean,  emissions-free  electricity  obtained  from  solar  and  wind,  for  example,  but  widespread  proliferation  of  renewable  sources  of  electricity  generation  has  yet  to  occur  and  the  challenge  of  grid-scale  energy  storage  has  not  yet  been  adequately  addressed.  A  better  alternative  for  this  required  energy  exists  in  the  form  of  a  co-reactant  with  high  enthalpy,  such  as  CH4.  CH4is  arguably  the  most  advantageous  co-reactant  due  to  its  abundance  and  relatively  low  cost.  Therefore,  CH4and  CO2are  expected  to  be  the  feedstocks  of  the  future  to  produce  fuels,  chemicals,  and  materials.Three  such  processes  to  transform  CO2and  CH4to  chemical  and  fuels  are  discussed  at  length  in  this  dissertation:  1)  low  temperature  CO2utilization  via  reverse  water-gas-shift  chemical-looping,  2)  CH4pyrolysis  for  the  production  of  CO2-free  H2and  carbon  nanotubes,  and  3)  photocatalytic  direct  CH4to  CH3OH.
■590    ▼aSchool  code:  0212.
■650  4▼aNuclear  reactors
■650  4▼aCarbon  sequestration
■650  4▼aGases
■650  4▼aOxidation
■650  4▼aSpectrum  analysis
■650  4▼aNuclear  magnetic  resonance--NMR
■650  4▼aMethane
■650  4▼aCarbon  dioxide
■650  4▼aTuition
■650  4▼aGlobal  warming
■650  4▼aMetal  oxides
■650  4▼aEnergy
■650  4▼aChromatography
■650  4▼aCarbon  cycle
■650  4▼aCatalysis
■650  4▼aPhotocatalysis
■650  4▼aClimate  change
■690    ▼a0791
■690    ▼a0404
■71020▼aStanford  University.
■7730  ▼tDissertations  Abstracts  International▼g87-01B.
■790    ▼a0212
■791    ▼aPh.D.
■792    ▼a2023
■793    ▼aEnglish
■85640▼uhttp://www.riss.kr/pdu/ddodLink.do?id=T17365856▼nKERIS▼z이  자료의  원문은  한국교육학술정보원에서  제공합니다.

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