نتایج جستجو برای: clean hydrogen

تعداد نتایج: 176961  

2006
Ilgi Karapinar Kapdan Fikret Kargi

Hydrogen is a valuable gas as a clean energy source and as feedstock for some industries. Therefore, demand on hydrogen production has increased considerably in recent years. Electrolysis of water, steam reforming of hydrocarbons and auto-thermal processes are well-known methods for hydrogen gas production, but not cost-effective due to high energy requirements. Biological production of hydroge...

Journal: :Indian Scientific Journal Of Research In Engineering And Management 2022

Over the past fifty years, there has been a sharp surge in search for clean, high-energy fuels. Fossil fuels, which are primary source of energy, release harmful air pollutants into environment posing substantial pollution issue. Compared to fossil hydrogen gas is clean and having high heating value. Hydrogen thought be main energy carrier future can utilised fuel cells produce electricity. The...

Journal: :Energies 2023

Climate change primarily caused by the greenhouse gases emitted as a result of consumption carbon-based fossil fuels is considered one biggest challenges that humanity has ever faced. Moreover, Ukrainian crisis in 2022 complicated global energy and food status quo more than ever. The permanency this multifaceted fragility implies need for increased efforts to have independence requires long-ter...

2016
S. E. Moradi

The production of hydrogen (as a clean energy carrier that could replace fossil fuels) nowadays attracts much attention because of environmental pollution and energy demands1–3. Recently, hydrogen evolution technologies, such as production by steam reforming4, electrolysis5, degradation of organic pollutants in wastewater6, and photoelectrochemical splitting of water7 have been investigated. Am...

Journal: :Physical chemistry chemical physics : PCCP 2013
Yang Song

In addressing the global demand for clean and renewable energy, hydrogen stands out as the most suitable candidate for many fuel applications that require practical and efficient storage of hydrogen. Supplementary to the traditional hydrogen storage methods and materials, the high-pressure technique has emerged as a novel and unique approach to developing new potential hydrogen storage material...

Journal: :iranian journal of catalysis 0
mohammad bakherad school of chemistry, shahrood university of technology, shahrood 3619995161, iran rahele doosti school of chemistry, shahrood university of technology, shahrood 3619995161, iran mahdi mirzaee school of chemistry, shahrood university of technology, shahrood 3619995161, iran khosrow jadidi department of chemistry, shahid beheshti university, tehran 1983963113, iran.

the reaction of 3-chloropropyl boehmite nanoparticles with caffeine and sulfuric acid afforded bnps-3-propyl-imidazolopyridinium hydrogen sulfate [bnps-caff]hso4 as a new bnps-supported ionic liquid (il) catalyst. [bnps-caff]hso4 proved to be an efficient heterogeneous catalyst for the synthesis of pyrazolopyranopyrimidines via a one-pot four-component reaction of hydrazine hydrate, ethyl aceto...

2014
J. N. Chung

*Correspondence: J. N. Chung, Department of Mechanical and Aerospace Engineering, University of Florida, Gainesville, FL 32611, USA e-mail: [email protected] Two concept systems that are based on the thermochemical process of high temperature steam gasification of lignocellulosic biomass and municipal solid waste are introduced.The primary objectives of the concept systems are (1) to develop the ...

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