Results 71 to 80 of about 407 (194)
Enhancement of char gasification in CO2 during chemical looping combustion
Chemical Engineering Journal, 2018 Three chars were gasified in CO2 in a fluidised bed of inert sand or Fe2O3 as an oxygen carrier (either derived from an ore or prepared in the laboratory). Rates of gasification were found to increase with temperature and the presence of active oxygen carriers. The observed change varied both with the chars’ and carriers’ reactivity.
Marek, EJ, Zheng, Yaoyao, Scott, Stuart
openaire +2 more sources
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.A first‐of‐its‐kind review benchmarks three solar methane valorization pathways with unified performance metrics for clean fuel production. Meeting global climate targets and sustainable energy demands requires carbon‐neutral fuels and innovative conversion pathways.
Muhammad Abdulmoez +3 more
wiley +1 more source
ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.Rapid Joule heating induces Ni—Fe exsolution from perovskite oxides, forming Ni–Fe/oxide heterointerfaces that enhance photothermal CO2 methanation activity and selectivity. Achieving selective CO2 methanation under photothermal conditions requires catalysts capable of maintaining non‐equilibrium interfacial states that balance reduction and oxidation ...
Qiankai Zhang +9 more
wiley +1 more source
Chemical Engineering Transactions, 2015 State-of-the-art integrated processes for hydrogen production from low rank coal (LRC) consisting of drying, gasification, chemical looping, and hydrogenation is proposed based on enhanced process integration (EPI).
M. Aziz, T. Oda, T. Kashiwagi
doaj +1 more source
Production of hydrogen from algae: Integrated gasification and chemical looping
Energy Procedia, 2017 Due to their high potential and beneficial characteristics, algae is considered as very promising energy source in future.
Muhammad Aziz, Ilman Nuran Zaini
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Energy Science &Engineering, EarlyView.ABSTRACT Thermochemical gasification is one of the most efficient methods for producing solid waste synthesis gas. Therefore, to predict and analyze the process of gasification of municipal solid waste (MSW) in a downdraft fixed‐bed gasification reactor with a thermal capacity of 2.1 kW, a comprehensive numerical modeling approach based on Gibbs free ...
Mohammad Reza Gharib +2 more
wiley +1 more source
Meitan kexue jishuSewage sludge and ultra-low concentration methane are typical solid wastes and greenhouse gases, posing urgent environmental and energy challenges due to their inefficient resource utilization.
Shengtai YAN +6 more
doaj +1 more source
Dry Reforming of Biogas Over Li–Ni–Al Catalysts: Influence of Li Incorporation Method
Greenhouse Gases: Science and Technology, EarlyView.ABSTRACT Hydrogen is a promising source of energy, given the current context of depletion of fossil fuels and increased emissions of greenhouse gases. The technological route for obtaining this fuel from the dry reforming of biogas has received considerable attention from researchers, as it converts the polluting gases CH4 and CO2 into synthesis gas ...
Cristine Munari Steffens +1 more
wiley +1 more source
Energy Conversion and Management: XBiomass chemical looping gasification (BCLG) is emerging as a promising alternative to conventional gasification, addressing inherent limitations. This study systematically compares BCLG with conventional methods like air and air/steam gasification ...
Avishek Goel +6 more
doaj +1 more source
Oil & Gas Science and Technology, 2011 When using solid fuel in a chemical looping system, the char fraction of the fuel needs to be gasified before syngas react with the oxygen carrier.
Leion H., Mattisson T., Lyngfelt A.
doaj +1 more source