Chaitanya Dhoke

ORCID: 0000-0001-5580-1962
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About
Contact & Profiles
Research Areas
  • Chemical Looping and Thermochemical Processes
  • Carbon Dioxide Capture Technologies
  • Phase Equilibria and Thermodynamics
  • Catalysts for Methane Reforming
  • Adsorption and Cooling Systems
  • Thermochemical Biomass Conversion Processes
  • Membrane Separation and Gas Transport
  • Carbon dioxide utilization in catalysis
  • Catalytic Processes in Materials Science
  • Catalysis and Oxidation Reactions

SINTEF Industry
2022-2023

SINTEF
2022-2023

Norwegian University of Science and Technology
2018-2021

Adsorption-based CO2 capture has enjoyed considerable research attention in recent years. Most of the efforts focused on sorbent development to reduce energy penalty. However, use suitable gas–solid contacting systems is key for extracting full potential from minimize operating and capital costs accelerate commercial deployment technology. This paper reviews several reactor configurations that were proposed adsorption-based capture. The fundamental behavior adsorption different contactors...

10.1021/acs.iecr.0c04547 article EN cc-by Industrial & Engineering Chemistry Research 2021-03-05

Steam methane reforming with CO2 capture (blue hydrogen) and water electrolysis based on renewable electricity (green are commonly assumed to be the main supply options in a future hydrogen economy. However, another promising method is emerging form of natural gas pyrolysis (turquoise pure carbon as valuable by-product. To better understand potential turquoise hydrogen, this study presents techno-economic assessment molten salt process. Results show that moderate reactor pressures around 12...

10.1016/j.enconman.2021.115187 article EN cc-by-nc-nd Energy Conversion and Management 2022-01-06

Adsorption-based post-combustion CO2 capture is enjoying significant research attention due to its potential for reductions in energy penalty, cost and environmental impact. Recent sorbent development work has focussed on polyethyleneimine (PEI) dry sorbents that exhibit attractively low regeneration requirements. The main objective of this study identify best suitable the recently published swing adsorption reactor cluster (SARC) concept. screening results four indicated two PEI be good...

10.1016/j.cej.2019.122201 article EN cc-by-nc-nd Chemical Engineering Journal 2019-07-11

This paper reports the experimental demonstration of novel swing adsorption reactor cluster (SARC) concept in a multistage fluidized bed with inbuilt heat-transfer surfaces for postcombustion CO2 capture at capacity up to 24 kg-CO2/day. SARC employs combined temperature and vacuum swings (VTSA), driven by heat pumps, regenerate solid sorbent after capture. The laboratory-scale utilized pump heating oil loop (emulating pump) demonstrate 90% from an N2/CO2 mixture approximating coal power...

10.1021/acs.iecr.0c05951 article EN Industrial & Engineering Chemistry Research 2020-12-13

Partial decarbonization of natural gas has the potential to kickstart hydrogen economy. Up 20% volume can be safely accommodated in existing networks, removing problem insufficient distribution and end-use infrastructure for pure hydrogen. The present work investigates a technological pathway producing such partially decarbonized (PDG) at zero or negative cost: molten salt pyrolysis. When PDG with H2 instead hydrogen, demands on pyrolysis process become considerably lighter: reactor operated...

10.1016/j.ijhydene.2023.11.124 article EN cc-by International Journal of Hydrogen Energy 2023-11-22

Momentum is gathering behind the goal of achieving net-zero CO2 emissions by 2050 in Europe and around world. Negative via biomass or waste combustion with capture can make net zero considerably easier to achieve. This study investigates from combined heat power (CHP) plants that often use bio-based fuels. However, most processes require large amounts heat, potentially consuming CHP plant's primary product. The novel continuous swing adsorption reactor (CSAR) concept provides a promising...

10.1021/acs.energyfuels.3c00885 article EN cc-by Energy & Fuels 2023-08-07

New process concepts, such as the swing adsorption reactor cluster (SARC) CO2 capture process, are often techno-economically investigated using idealized modeling assumptions. This study quantifies impact of this practice by updating a previous economic assessment with results from an improved model validated against recently completed SARC lab-scale demonstration experiments. The experimental comparison showed that assumption chemical equilibrium was valid, previously employed heat transfer...

10.1021/acs.iecr.1c00357 article EN Industrial & Engineering Chemistry Research 2021-08-10

This study investigates CO2 capture from combined heat and power (CHP) plants that often use bio-based fuels. However, most processes require large amounts of heat, potentially consuming the CHP plant's primary product. The novel continuous swing adsorption reactor (CSAR) concept provides a promising solution by capturing using electrically driven vacuum pumps. Techno-economic assessments conducted in this work illustrate CSAR clearly outperforms an MEA benchmark when plant sells throughout...

10.2139/ssrn.4254426 article EN SSRN Electronic Journal 2022-01-01
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