Results 61 to 70 of about 149,555 (323)

Investigation of Underground Coal Gasification in Laboratory Conditions: A Review of Recent Research

open access: yesEnergies, 2023
The underground coal gasification (UCG) technology converts coal into product gas and provides the option of environmentally and economically attractive coal mining. Obtained syngas can be used for heating, electricity, or chemical production.
Ján Kačur   +3 more
doaj   +1 more source

Microwave Ultrafast Heating on Iron‐based Nanogap Catalysts for CO2 Reduction Coupling with Coke Removal

open access: yesAdvanced Science, EarlyView.
This study employs a nanogap‐induced microwave discharge strategy to pretreat coke deposits on iron‐based catalysts with engineered nanogaps, causing ultrarapid heating to 1990 K within seconds, selectively eliminating >70% surface carbon deposits and converting waste plastics and greenhouse gases into syngas.
Xi Shen   +4 more
wiley   +1 more source

Fixed bed gasification of wood char: characterisation of a new continuous downdraft reactor [PDF]

open access: yes, 2009
A staged gasification process coupled with a gas engine is one of the most promising technologies for small and medium sized electricity production. The purpose of this work was to design and build new experimental equipment to characterise the wood char
Martin, Eric   +3 more
core  

Pyrolysis-catalytic reforming/gasification of waste tires for production of carbon nanotubes and hydrogen [PDF]

open access: yes, 2015
The production of high-value carbon nanotubes and hydrogen from the two-stage pyrolysis catalytic-steam reforming/gasification of waste tires have been investigated. The catalysts used were Co/Al₂ O₃ , Cu/Al₂ O₃ , Fe/Al₂ O₃ and Ni/Al₂ O₃ .
Nahil, Mohamad A.   +3 more
core   +3 more sources

Ruddlesden–Popper Structured Sr3Fe2O7−δ as Redox‐Activated CO2 Sorbents for Green Hydrogen Production

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
A‐site and B‐site doped strontium ferrite‐type Ruddlesden–Popper oxides are evaluated as CO2 sorbents for glycerol‐based hydrogen production via sorption‐enhanced steam reforming. A Sr1.4Ca0.6Fe0.9Ni0.1O4−δ composition forms an active Sr3Fe2O7 phase, achieving ≈95 vol% H2 purity and over sixfold longer CO2 prebreakthrough time (tpb) than its perovskite
Mahe Rukh   +6 more
wiley   +1 more source

Influence of the catalyst support on the steam reforming performance of toluene as tar model compound [PDF]

open access: yes, 2018
The large amount of tar produced along with the syngas during biomass gasification is one of the major obstacle for the diffusion of gasifiers at industrial scale. Catalytic cracking and reforming are the most suitable processes for the transformation of
Asbel, Hernandez   +6 more
core   +1 more source

The Future of Hydrogen‐Powered Aviation: Technologies, Challenges, and a Strategic Roadmap for Sustainable Decarbonization

open access: yesAdvanced Energy and Sustainability Research, EarlyView.
Hydrogen‐powered aviation offers a transformative pathway to zero‐emission flight by eliminating in‐flight CO2 emissions. Key considerations include propulsion systems (fuel cells and hydrogen combustion), cryogenic storage and insulation challenges, infrastructure and cost barriers, and supply‐chain constraints.
Mubasshira   +4 more
wiley   +1 more source

Detailed gasification process of woody biomass-derived char with H2O and CO2 gasifying agents

open access: yesJournal of Thermal Science and Technology, 2020
To effectively utilize renewable biomass resources, gasification technology is being actively developed. Many studies have been performed regarding the gasification of biomass-derived char (i.e., biochar), where the gasification rate varies greatly with ...
Yukihiko OKUMURA
doaj   +1 more source

Kinetic Modelling for Tar Evolution and Formation in a Downdraft Gasifier [PDF]

open access: yes, 2018
Biomass gasification modeling is a powerful tool used to optimize the design of a gasifier. A detailed kinetic model was built by the current authors [1] to predict the behavior of air blown downdraft gasifier for a wide range of materials within the
Kumar, U., Paul, M.C., Salem, A.M.
core  

Investigating the impact and reaction pathway of toluene on a SOFC running on syngas [PDF]

open access: yes, 2014
The integration of solid oxide fuel cells (SOFCs) with gasification systems have theoretically been shown to have a great potential to provide highly efficient distributed generation energy systems that can be fuelled by biomass including municipal solid
Aravind   +28 more
core   +1 more source

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