hydrogen analysis Articles

  • Efficiency analysis of hydrogen production methods from biomass

    Hydrogen is considered as a universal energy carrier for the future, and biomass has the potential to become a sustainable source of hydrogen. This article presents an efficiency analysis of hydrogen production processes from a variety of biomass feedstocks by a thermochemical method – gasification as well as biochemical methods – fermentation and anaerobic digestion. The exergetic ...


    By Inderscience Publishers

  • Two Detector Solution to Analyzing Sulfur

    Sulfur compounds are reactive, corrosive to pipes, and destructive to catalysts in petroleum refineries. Sulfur emission are strictly regulated globally. When released into the atmosphere sulfur dioxide converts to sulfuric acid resulting in adverse effects on human health and the environment. Sulfur detection is found useful in many other industries; therefore, detection of sulfur compounds in ...


    By Restek Corporation

  • Hydrogen Generator Fuel

    Hydrogen is a very valuable alternative to fossil fuel for distributed energy generation, delivering a high powered solution with minimal environmental and safety concerns. Green businesses, telecomm providers, governments, and renewable energy advocates can now produce on-demand energy for their assets, at minimal cost and using commercially available equipment. This article will look at the ...


    By Verde LLC

  • Exergy analysis and environmental impact assessment of a photovoltaic-hydrogen production system

    In this study, exergy analysis and environmental impact assessment of a Photovoltaic (PV)-hydrogen production system and its components are carried out. Actual data measured in the system are employed for analysis purposes. Daily hydrogen production amount from solar energy through water electrolysis is 4.43 kg. The average system exergy efficiency is determined to be 3.18%. It is found that the ...


    By Inderscience Publishers

  • GC/MS analysis of a complex sample in DCM using hydrogen carrier gas

    Labs worldwide have recently found that helium has been in short supply, leaving a number of labs without carrier gas. Added to this, helium prices have doubled over the past 10 years causing a number of labs to look into alternative carrier gases for GC, such as nitrogen and hydrogen. As well as lower price and unlimited availability, hydrogen has a number of potential advantages over helium, ...

  • An empirical analysis of institutional barriers to European hydrogen RD&D cooperation

    This paper applies and elaborates environmental and evolutionary theorising in the context of international research, development and demonstration (RD&D) cooperation. The theoretical framework of analysis lays particular emphasis on identifying and overcoming institutional barriers to international cooperation for the RD&D that contributes to radical and environmentally friendly systemic ...


    By Inderscience Publishers

  • Automobile technology, hydrogen and climate change: a long term modelling analysis

    The transitions in the global automobile sector in the 21st century are uncertain both in terms of technologies and energy carriers. A key driving force of technological change in the long term could be the need to mitigate GHG emissions. This paper examines the role of the passenger car sector in a GHG mitigation strategy and presents a scenario of the automobile technology choices when a price ...


    By Inderscience Publishers

  • The hydrogen materials community: its history and current status in the World Hydrogen Movement

    This review briefly summarises the history of the hydrogen materials community as an important part of the World Hydrogen Movement. It analysis the history and current status of the interrelation between the Hydrogen Energy (HE) and Hydrogen Materials (HM) communities. During the last 15 years, great advances in this cooperation have come about, thanks to the thorough activities of the Permanent ...


    By Inderscience Publishers

  • The technoeconomic assessment of the hydrogen fuel chain

    Options for hydrogen fuel chain are compared with the existing petroleum-based fuel chain for transportation. The criteria used are the life cycle cost (Rs/km), Greenhouse Gas (GHG) emissions (g/km) and Nonrenewable Energy (NRE) consumption (MJ/km). Four hydrogen production methods, one hydrogen transport method, three hydrogen storage methods and two on-board energy conversion methods are ...


    By Inderscience Publishers

  • Modelling and simulation with experimental verification of hydrogen-diesel dual-fuel premixed combustion and emission analysis

    This paper deals with an application of advanced simulation methods to the modelling of Duel-Fuelled engines (Hydrogen/Diesel) in which the premixed Hydrogen gas is ignited by the combustion flame initiated by a diesel spray. The model consists of a diesel auto-ignition model and a modified combustion model. The influence of main engine parameters i.e., injection advance, and various percentages ...


    By Inderscience Publishers

  • Analysis of availability and accessibility of hydrogen production: An approach to a sustainable energy system using methane hydrate resources

    It is considered that use of hydrogen as an energy source may contribute to environmental improvement and provide an alternative energy system. Moreover, it is anticipated that hydrogen will be in great demand in the near future for use in such vehicles as fuel cell-based cars. Research and development of a number of advanced methods of hydrogen production (OTEC, water photolysis using a ...


    By Springer

  • A review of thermochemical cycles for hydrogen production: analysis of potential of membrane technology in I–S, UT–3 and CuCl cycles

    Global warming and climate change necessitate a serious move away from fossil–based systems toward hydrogen economy. A study has been carried out on different thermochemical cycles for hydrogen production to bring about their important aspects. The study involves process description of different routes followed by thermochemical cycles. These include metal oxide processes, sulphur family ...


    By Inderscience Publishers

  • Conversion of food waste into hydrogen by thermophilic acidogenesis

    Conversion of food waste into hydrogen by thermophilic acidogenesis was investigated as a function of organic loading rate (OLR), hydraulic retention time (HRT) and pH in a continuous stirred tank reactor. In order to identify hydrogen-producing microorganisms, denaturing gradient gel electrophoresis (DGGE) of the polymerase chain reaction (PCR) – amplified V3 region of 16S rDNA analysis was ...


    By Springer

  • Complex Mixture Using Hydrogen as a Carrier Gas

    The following technical brief aims to demonstrate the performance of GC-MS using hydrogen as a carrier gas. Here we compare the performance of hydrogen and helium for the analysis of a complex mixture. The results show that by using hydrogen, chromatographers can achieve superior results to helium, with faster run times and taller, sharper ...

  • Transition to hydrogen: road to China's energy sustainable development

    Based on the analysis of the status quo and the outlook for China's energy, challenges facing China in energy sector are presented. Basic characteristics that should be stressed by China’s energy sustainable development are brought forward. It is concluded that transition to hydrogen is an effective solution to the energy problems and challenges. China's strategy toward hydrogen is also shortly ...


    By Inderscience Publishers

  • Novel catalytic and mechanistic studies on wastewater denitrification with hydrogen

    The present work reports up-to-date information regarding the reaction mechanism of the catalytic hydrogenation of nitrates in water media. In the present mechanistic study, an attempt is made, for the first time, to elucidate the crucial role of several catalysts and reaction parameters in the mechanism of the NO3−/H2 reaction. Steady-state isotopic transient kinetic ...


    By IWA Publishing

  • Energy and exergy analyses of a steam reforming process for hydrogen production

    Hydrocarbon steam reforming is an important process for hydrogen production. In petroleum refineries, steam reforming is most commonly used for hydrogen production from naphtha and light hydrocarbon gases (methane, ethane and propane). Since the hydrocarbon steam reforming system is one of the highest energy intensive systems in a petroleum refinery it should be directed to a more efficient use ...


    By Inderscience Publishers

  • Alternative fuels and sustainable mobility: is the future road paved by biofuels, electricity or hydrogen?

    This paper compares 16 alternative energy chains in a Well-to-Wheel analysis including three indicators: energy use, emissions of climate gases and emissions of local/regional pollutants. The analysis includes a private car which uses natural gas, biological fuels, electricity and hydrogen, respectively. The analysis shows that an alternative which scores favourably on one indicator often scores ...


    By Inderscience Publishers

  • Cost implications of hydrogen donor selection for in-situ bioremediation of chlorinated solvents

    The use of enhanced anaerobic bioremediation for treatment of chlorinated solvents in groundwater has increased at a rapid rate within the past three years. Since there are a number of different hydrogen donors that can potentially be used, it is important that practitioners understand the cost implications of the hydrogen donor(s) selected for the project. A comparative economic analysis is ...


    By Terra Systems, Inc. (TSI)

  • Life cycle costing of a self-sufficient solar-hydrogen system

    In a renewable energy-based system, energy storage must match the energy demand with supply. Usually a lead-acid battery is utilised as a short-term energy buffer. A system, which has a combination of an electrolyser and a high-pressure hydrogen tank for long-term energy storage, is considered in this paper. The cost intensive components are sized considering the least cost and by performing a ...


    By Inderscience Publishers

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