104
0
Full metadata record
| DC Field | Value | Language |
|---|---|---|
| dc.contributor.advisor | 김진국 | - |
| dc.contributor.author | 원아연 | - |
| dc.date.accessioned | 2024-03-01T07:32:37Z | - |
| dc.date.available | 2024-03-01T07:32:37Z | - |
| dc.date.issued | 2023.2 | - |
| dc.identifier.uri | http://hanyang.dcollection.net/common/orgView/200000651270 | en_US |
| dc.identifier.uri | https://repository.hanyang.ac.kr/handle/20.500.11754/188225 | - |
| dc.description.abstract | Thegoalofreachingnetzeroby2050hasbeenestablishedtoaddressexistingenvironmentalconcerns.Hydrogenisanticipatedtoplayakeyroleinachievingtheenergytransitionsinceitcanbeutilizedasvarioustypesoffuelstogeneratedifferentkindsofenergy.Itismainlyproducedbysteammethanereforming(SMR)technologyusingnaturalgasinthepresent,althoughthisusesalotofsteamandthermalenergy,bothofwhichhaveahighCO2cost. Todevelopenvironmentallyadvancedhydrogenproductionprocesses,otherreactions,includingauto-thermalreforming(ATR)andpartialoxidation(POX),havebeensuggestedinthisresearch.Additionally,electricheatersreplacedtheconventionalfurnacesintheSMRandATRprocesses,andtheOrganicRankineCycle(ORC)convertedleftoverheattoelectricity.Finally,thecarboncaptureunithasbeenintegratedintoeachprocessforthesakeofcarbonreduction.TheprocessesaredescribedinthereportbyIEAGHGandsimulatedthroughAspenHYSYS®.Then,theenvironmentaleffectswerequantifiedfromprocessdatausingSimaPro®aspartofthelife-cycleassessmentprocess,specificallytheglobalwarmingpotential(GWP).TheassessmentsfollowedIPCC2013GWP100amethodwithEcoinvent3database. TheSMRprocesshada77.6%largeremissionwithane-furnacethanthebasecasebecausethereactorisincapableofburningallthemethanebyitselfandtheoff-gaswasassumedtobereleaseddirectlytotheair.Eventhecarboncapturecannotdroptill10.44GWPofthebasescenariosincetheCH4accountingratiowasfartoohigh.So,itneededanadditionalfurnaceafterthePSAunit,whichcandecreasetheemissionto2.62GWPand-1.51GWPwiththecarboncapture.Otherwise,ATRreactorcanutilizethemethaneforcombustionreactions,resultingin11.01GWP,whichisalowervaluethantheSMRelectrificationcaseandtheATRbasecase.Also,mostoftheemissionwasconsistofCO2,whichcanbecapturedbytheunit,sothattheelectrificationandcarboncapturecasehadarelativelylowemissionof4.66kg.Lastly,POXhasbenefitedfromtheprocessrenovation,asithastheabilitytodirectlyburnmethaneinthereactor.Itimpliesthattheoff-gasdidnotcontainCH4andthattheCO2wascapturedbythemonoethanolamine(MEA).TheprocesswiththeORCsystemhad11.03GWP,whichis0.29lowerthanthebasecase,andthecarboncapturereduceditsvalueto2.55GWP.Inconclusion,theSMRprocesswithanelectricheateristheworstoption,sothatitneedsanadditionalburner.ThePOXprocesswithORCandcarboncaptureisoneoftheenvironment-friendlyscenarios,evenwithoutafurnace. | - |
| dc.publisher | 한양대학교 | - |
| dc.title | SustainableProcessDesignandLife-cycleAssessment(LCA)ofHydrogenProductionusingNaturalGas | - |
| dc.title.alternative | 천연가스를이용한수소생산기술의지속가능한공정설계와전과정환경성평가 | - |
| dc.type | Theses | - |
| dc.contributor.googleauthor | 원아연 | - |
| dc.contributor.alternativeauthor | AhyeonWon | - |
| dc.sector.campus | S | - |
| dc.sector.daehak | 대학원 | - |
| dc.sector.department | 화학공학과 | - |
| dc.description.degree | Master | - |
| dc.contributor.affiliation | 공정설계 | - |
- Appears in Collections:
- GRADUATE SCHOOL[S](대학원) > CHEMICAL ENGINEERING(화학공학과) > Theses (Master)
- Files in This Item:
There are no files associated with this item.
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.
