Browsing NTNU Open by Author "Rout, Kumar Ranjan"
Now showing items 1-20 of 21
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A Performance and Kinetic Study of PEI-Impregnated Mesoporous Silica Spheres for Low-Temperature Carbon Capture.
Grinna, Jørgen Lausund (Master thesis, 2020)Karbon-fangst av røykgass er en av de mest lovende teknologiene for å bekjempe de alltid økende utslippene av drivhusgasser. Adsorpsjon av CO2 fra røykgass ved bruk av effektive solide sorbenter har vist mange fordeler, ... -
A study of the sorption-enhanced steam methane reforming process
Rout, Kumar Ranjan (Doktoravhandlinger ved NTNU, 1503-8181; 2012:371, Doctoral thesis, 2012) -
Catalytic Steam Reforming of Hydrocarbon Impurities from Biomass Gasification
Kristin Øxnevad Madsen (Master thesis, 2021)En bærekraftig framtid fordrer avkarbonisering av energisystemene våre ved å omstille oss fra et fossilt til et fornybart samfunn. Flytende drivstoff kan produseres fra fornybar biomasse ved å kombinere gassifisering av ... -
Cluster-size-dependent interaction between ethylene and CuCl2 clusters supported via γ-alumina
Qi, Yanying; Fenes, Endre; Ma, Hongfei; Wang, Yalan; Rout, Kumar Ranjan; Fuglerud, Terje; Marco, Piccinini; Chen, De (Peer reviewed; Journal article, 2020)Alumina-supported copper chloride serves as an industrial catalyst for ethylene oxychlorination, resulting from its high activity and selectivity. A better understanding of the detailed active site structure and reaction ... -
Critical review of catalysis for ethylene oxychlorination
Ma, Hongfei; Wang, Yalan; Qi, Yanying; Rout, Kumar Ranjan; Chen, De (Peer reviewed; Journal article, 2020)Ethylene oxychlorination is the key technology in vinyl chloride (VCM, the monomer of PVC, polyvinyl chloride) production to close the chlorine loop by consuming the HCl released from the former cracking step. Due to the ... -
Effect of oxide additives on the hydrotalcite derived Ni catalysts for CO2 reforming of methane
Niu, Juntian; Liland, Shirley Elisabeth; Yang, Jia; Rout, Kumar Ranjan; Ran, Jingyu; Chen, De (Journal article; Peer reviewed, 2018)Here we provide new mechanistic and kinetic insights into the functions of oxides on Ni catalysts in methane dry reforming combining kinetic studies with density functional theory (DFT) calculations. Hydrotalcite derived ... -
Fischer-Tropsch synthesis over an alumina-supported cobalt catalyst in a fixed bed reactor – Effect of process parameters
Gavrilovic, Ljubisa; Jørgensen, Erik Andreas; Pandey, Umesh; Putta, Koteswara Rao; Rout, Kumar Ranjan; Rytter, Erling; Hillestad, Magne; Blekkan, Edd Anders (Peer reviewed; Journal article, 2020)Fischer-Tropsch synthesis has been investigated over a commercial type cobalt-based catalyst (20 %Co/0.5 %Re/γ-Al2O3) by varying the H2/CO ratio (2.55–1.12), CO conversion (15–75 %), reaction temperature (210 °C, 230 °C), ... -
Fischer-Tropsch Synthesis: Conversion of Bio-Syngas to Hydrocarbons
Jørgensen, Erik Andreas (Master thesis, 2019)Dette prosjektet omhandler Fischer-Tropsch syntese over cobolt-baserte katalysatorer. Tolv eksperimenter ble utført i en to-reaktor rigg ved en rekke reaksjonsbetingelser, med formål om å innhente eksperimentell data til ... -
High-temperature desulfurization of biomassderived synthesis gas using solid sorbents
Ma, Jianyu (Doctoral theses at NTNU;2021:14, Doctoral thesis, 2021)Conversion of synthesis gas from biomass gasification to fuels or other valuable chemicals is regarded as a sustainable and renewable pathway to solve the energy crisis. However, the sulfur impurities, normally in the form ... -
Highly selective CO removal by sorption enhanced Boudouard reaction for hydrogen production
Rout, Kumar Ranjan; Gil Matellanes, Maria Victoria; Chen, De (Journal article, 2019)The development of an energy-efficient and cost-effective technology for the purification of a hydrogen rich stream to achieve a CO concentration below 10 ppm, suitable for low temperature fuel cell applications, is one ... -
Investigations of molybdenum-promoted manganese-based solid sorbents for H2S capture
Ma, Jianyu; Rout, Kumar Ranjan; Sauer, Maximilian; Mahmoodinia, Mehdi; Blekkan, Edd Anders (Peer reviewed; Journal article, 2020)The promotion effect of Mo-addition to alumina-supported Mn-based sorbents for high-temperature desulphurization was explored. A series of Mn-based sorbents with fixed Mn-loading and different Mo-loadings were prepared by ... -
Jet fuel range hydrocarbon production from propanal: Mechanistic insights into active site requirement of a dual-bed catalyst
Yeboah, Isaac; Feng, Xiang; Wang, Gang; Rout, Kumar Ranjan; Cai, Zhenping; Duan, Xuezhi; Zhou, Xinggui; Chen, De (Peer reviewed; Journal article, 2020)Utilization of sustainable biomass to produce jet fuel range hydrocarbons is imperatively needed to mitigate CO2 emissions and to liberate the over-reliance on fossil resources. Using propanal as the feedstock, an excellent ... -
Kinetic modeling of dynamic changing active sites in a Mars-van Krevelen type reaction: Ethylene oxychlorination on K-doped CuCl2/Al2O3
Ma, Hongfei; Sollund, Erling S.; Zhang, Wei; Fenes, Endre; Qi, Yanying; Wang, Yalan; Rout, Kumar Ranjan; Fuglerud, Terje; Piccinini, Marco; Chen, De (Peer reviewed; Journal article, 2020)A kinetic model was developed by taking into account the dynamic nature of the active sites in Mars–van Krevelen type catalytic reactions to predict the evolution of the reactant and product composition in the gas phase ... -
Kinetic Modeling of Oxychlorination Reaction
Wiker, Ellinor Sofie Smith (Master thesis, 2016)Polyvinyl chloride is a widely produced plastic polymer due to its various applications and relatively low cost. Oxychlorination of ethylene to 1,2-dichloroethane is an important step in the production of vinyl chloride ... -
Kinetic study and reactor modeling of ethylene oxychlorination
Sollund, Erling Olav (Master thesis, 2018)Oxychlorination of ethylene to 1,2-dichloroethane is a vital step in the production of polyvinyl chloride. Polyvinyl chloride is a plastic polymer that is widely used, especially in construction. The reaction is usually ... -
Low temperature carbon dioxide capture by PEI-modified mesoporous silica: synthesis and performance analysis
Liu, Yun (Master thesis, 2021)Mesoporøse silisiumdioksydmidler ble fremstilt ved forskjellige synteseforhold ved konvensjonelle sol-gel-metoder. De stive sfæriske silisiumdioksidene med høyt overflateareal og høy porøsitet i smal distribusjon ble ... -
Nitrogen‐Doped Carbon-Assisted One‐pot Tandem Reaction for Vinyl Chloride Production via Ethylene Oxychlorination
Ma, Hongfei; Ma, Guoyan; Qi, Yanying; Wang, Yalan; Chen, Qingjun; Rout, Kumar Ranjan; Fuglerud, Terje; Chen, De (Peer reviewed; Journal article, 2020)A bifunctional catalyst comprising CuCl2/Al2O3 and nitrogen‐doped carbon was developed for an efficient one‐pot ethylene oxychlorination process to produce vinyl chloride monomer (VCM) up to 76 % yield at 250 °C and under ... -
Production of high pressure pure H2 by pressure swing sorption enhanced steam reforming (PS-SESR) of byproducts in biorefinery
Gil, Maria V; Rout, Kumar Ranjan; Chen, De (Peer reviewed; Journal article, 2018)Hydrogen is highly demanded in biorefinery, and hydrogen production from renewable sources is essential to produce truly green transportation fuels from biomass. The present work demonstrates experimentally the production ... -
Regenerable Sorbents for High-Temperature Desulfurization of Syngas from Biomass Gasification
Ma, Jianyu; Mahmoodinia, Mehdi; Rout, Kumar Ranjan; Blekkan, Edd A. (Peer reviewed; Journal article, 2021)Single-metal high-temperature solid sorbents for syngas cleaning using Mn, Ca, Fe, Cu, or Mo supported on γ-Al2O3 were synthesized, characterized, and tested in a fixed-bed reactor. H2S and SO2 concentrations in the gas ... -
SYNTHESIS OF LOW-TEMPERATURE SORBENTS FOR CO2 CAPTURE
Wang, Siyu (Master thesis, 2019)