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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 32 for “"methane reforming"”.
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Nickel aluminide coating as catalyst in steam methane reforming microreactor
The catalyst deposition in microreactor for steam methane reforming (SMR) on a micro-scale poses new opportunities due to lack of literatures. Using plate-type catalyst as a basis, a foundation work on the preparation and analysis of catalyst deposition, specifically by dip coating (DC) method was …
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ENGINEERING NI/AL2O3 CATALYSTS BY ATOMIC LAYER DEPOSITION FOR METHANE REFORMING
<p>"Dry reforming of methane (DRM) could be a promising choice to utilize natural gas (mainly methane or CH<sub>4</sub>), recycle captured CO<sub>2</sub>, and produce valuable syngas. Promoters (e.g., CeO<sub>2</sub> and MgO) on Ni/Al<sub>2</sub>O<sub>3</sub> prepared by atomic layer deposition …
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ADVANCED BIFUNCTIONAL CORE-SHELL CATALYSTS FOR METHANE REFORMING USING CARBON DIOXIDE
… and CH4 to produce hydrogen or syngas via dry reforming of methane (DRM) reaction is an environmentally and commercially attractive prospect in view of the escalating global concerns on climate change from anthropogenic CO2 emissions. However, operational challenges stemming from rapid catalyst …
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Platinum group metals catalyzed steam methane reforming via micro-channel reactor
Steam methane reforming is a well-established industrial process used for generating hydrogen and synthesis gas. By performing this reaction in micro-channel reactors it is possible to take advantage of increased heat and mass transfer rates, allowing equipment size and residence times to be …
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Development of new steam methane reforming mobile plant with micro-scale catalytic channels
… hydrogen production is made via catalytic steam methane reforming (SMR). A performing catalyst favors thermodynamic equilibrium that ensures good hydrogen selectivity. This research explores the potential of SMR yield intensification using experimental micro reactor and active noble metal …
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CFD Evaluation of Six Structured Catalysts Manufactured by Robocasting Demonstrated on Steam Methane Reforming
… and Qatar which has not been done yet. Steam methane reforming is selected as an application reaction case to study how these geometries affect the performance of this well-established industrial reactor, which is of high relevance in Qatar. Results showed that geometry D-0^o and D-90^o have …
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Computational heterogeneous catalysis applied to steam methane reforming over nickel and nickel/silver catalysts
The steam methane reforming (SMR) reaction is the primary industrial means for producing hydrogen gas. As such, it is a critical support process for applications including petrochemical processing and ammonia synthesis. In addition, SMR could be an important component of future energy …
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Fabrication SiO2 -NiO foam via replication technique for steam methane reforming catalyst at low temperatures
… properties as a criteria catalyst in the Steam Methane Reforming (SMR) application. In this work, the porous foam fabricated with different compositions of SiO2 as derived from Rice Husk Ash (RHA) (20% to 35%) and at different sintering temperatures (850°C to 1250°C) by using replication sponge …
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A New Thin Layered Structural Coating on a Metal Substrate for Enhanced hydrogen Production from Steam Methane Reforming
… hydrogen produced nowadays comes from the steam reforming of natural gas (SMR), it appears that the most adept way to improve yields is by improving the SMR process. This thesis compiles the efforts taken to characterize the performance and kinetics of a new type of catalyst coating technique …
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Development and characterization of an impedance-based carbon sensor for the detection of catalyst coking in steam-methane and dry-methane reforming systems
… to detect the early stages of catalyst coking in methane reforming systems has been developed. The sensor is similar to the one developed by Wheeler et al., but it has been redesigned to reduce unwanted gas-phase response and increase coking response in methane reforming environments. The sensor …
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Copper Chloride Electrolyzer For the Production of Hydrogen Via the Copper-Chlorine Thermochemical Cycle
… is a promising alternative to steam-methane reforming and electrolytic water splitting for a sustainable method of large-scale hydrogen production. The Copper-Chlorine thermochemical cycle is one of prime contenders among all the other thermochemical cycles being studied because of …
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Optimization of a Hydrogen Alternative Aviation Fuel Supply Chain Under Demand and Emissions Constraints - A Case Study of Canada
… Oxide Electrolysis (SOE), and 2 Steam Methane Reforming Carbon Capture and Storage (SMR-CCS) plants, and another with 24 Alkaline Electrolysis (AE), 7 Nuclear-SOE, and 6 SMR-CCS plants. The 2080 net-zero solution was not found using this model due to GHG emissions in hydrogen production.
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New catalysts for syngas production from carbon dioxide and methane
… carbide material was investigated for CH4/CO2 reforming. The catalyst was found to convert to a very stable, very active, form when heated in CH4/CO 2 at 850°C and 5 atm. Even after 90 hours on stream, CH4 and CO2 rates of 1.3 and 1.25 mmol/min/g respectively are obtained, with CO yields of …
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The development of autocatalytic structural materials for use in the sulfur-iodine process for the production of hydrogen
… of hydrogen production. As opposed to steam methane reforming - the most prevalent method of hydrogen production today - there are no carbon dioxide emissions. Compared to other methods of hydrogen production, the efficiency of the cycle is excellent. Due to the high temperatures necessary …
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High throughput experimentation: a validation study for use in catalyst development
… consists of three catalytic reactions, namely reforming, water - gas shift and a CO clean - up through either selective methanation or preferential oxidation. Focus has been placed on the first two reactions, steam methane reforming (SMR) and medium temperature water - gas shift (WGS), using …
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The production and characterization of ceramic carbon electrode materials for CuCl-HCl electrolysis.
… supplies are primarily produced through steam methane reforming and other fossil fuel based processes. This lack of viable large scale and environmentally friendly H2 gas production has hindered the wide spread adoption of H2 fuel cells. A potential solution to this problem is the Cu-Cl hybrid …
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Techno-economic and life cycle analysis of the conversion of natural gas and biomass to hydrogen and performance carbons
… hydrogen through alternative pathways such as methane pyrolysis and biomass gasification, alongside the production of high-performance carbon materials to lower overall costs. It underscores the urgent need to transition away from Steam Methane Reforming (SMR) for industrial hydrogen production …
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Catalysts for H2 production
… and stable in the hydrogen production from methane, using either a new process, the catalytic partial oxidation (CPO), or a enhanced well-established process, the steam methane reforming (SMR). Two types of catalytic materials were examined: 1) Bulk catalysts, i.e. non-supported materials, …
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Effect of composition and sintering temperature on silica-nickel oxide foams by slurry method
… and will be used for further research in steam methane reforming application.
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Enhanced Methane Oxidation Catalysis Through Feed Modulation And Oxygen Storage
… the development and optimization of novel methane oxidation catalyst. In this project, the catalytic oxidation of methane is examined under lean and stoichiometric conditions across several catalysts and how feed modulations can enhance catalyst performance. In the first section of this …
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