ChemInform Abstract: EFFECTIVE HYDROGEN GENERATION SYSTEM BY USE OF ASCORBIC ACID AS A REVERSIBLE ELECTRON DONOR

1981 ◽  
Vol 12 (36) ◽  
Author(s):  
I. TABUSHI ◽  
A. YAZAKI
Keyword(s):  
Ascorbic Acid ◽  
Electron Donor ◽  
Hydrogen Generation ◽  
Generation System ◽  
Effective Hydrogen

Fuzzy Control of Hydrogen Generation by the Reaction of Activated Aluminum Particles and Water

2017 ◽  
Vol 5 (1) ◽  
pp. 1-7
Author(s):  
Bui Trong Giap ◽  
Kenji Takahara ◽  
Toshinori Kajiwara ◽  
Koji Maekawa
Keyword(s):  
Control System ◽  
Fuzzy Control ◽  
Hydrogen Generation ◽  
Pressure Sensors ◽  
Experimental System ◽  
Reaction Vessel ◽  
Water Tank ◽  
Generation System ◽  
Aluminum Particles ◽  
Fuzzy Control System

The purpose of this paper is to design a fuzzy control system for generating hydrogen at a desired level by a reaction between water and activated aluminum particles. The activated aluminum particles are produced shredded aluminum sawdust. It is difficult to characterize the reaction quantitatively because the characteristics of hydrogen generating reaction vary as depending on the samples, the environment of the reaction and so on. The experimental system consists of a fuel cell (FC) of 100[W], a water tank, a reaction vessel, pressure sensors, a water pump, a radiator and a one-chip microcomputer. The fuzzy control system is designed to determine the quantum of water which is supplied to the activated aluminum particles. The error forms a desired value of the pressure of the reaction vessel and the change of the error are chosen as the labels of the fuzzy membership functions. The proposed fuzzy control system is applied to maintain the pressure of the reaction vessel of the developed hydrogen generation system at a certain level. The developed hydrogen generation system is confirmed to provide hydrogen to the FC by experiments under various conditions.

A Novel Chemical-Looping Hydrogen Generation System With Multi-Input Fossil Fuels

2013 ◽  
Author(s):  
Xiaosong Zhang ◽  
Hongguang Jin
Keyword(s):  
Hydrogen Production ◽  
Natural Gas ◽  
Fossil Fuels ◽  
Hydrogen Generation ◽  
Chemical Looping ◽  
Generation System ◽  
System A ◽  
Energy Penalty ◽  
Burning Coal ◽  
Chemical Looping Hydrogen Generation

This paper proposes a multi-input chemical looping hydrogen generation system (MCLH), which generates hydrogen, through the use of natural gas and coal. In this system, a new type of oven, burning coal instead of natural gas as heating resource for hydrogen production reaction, is adopted. Coal can be converted to hydrogen indirectly without gasification. Benefits from the chemical looping process, the CO2 can be captured without energy penalty. With the same inputs of fuel, the new system can product about 16% more hydrogen than that of individual systems. As a result, the energy consumption of the hydrogen production is about 165J/mol-H2. Based on the exergy analyses, it is disclosed that the integration of synthetic utilization of natural gas and coal plays a significant role in reducing the exergy destruction of the MCLH system. The promising results obtained may lead to a clean coal technology that will utilize natural gas and coal more efficiently and economically.

An in situ electron donor consumption strategy for photoelectrochemical biosensing of proteins based on ternary Bi2S3/Ag2S/TiO2 NT arrays

2018 ◽  
Vol 54 (7) ◽  
pp. 806-809 ◽  
Author(s):  
Bing Wang ◽  
Jun-Tao Cao ◽  
Yu-Xiang Dong ◽  
Fu-Rao Liu ◽  
Xiao-Long Fu ◽  
...  
Keyword(s):  
Ascorbic Acid ◽  
Electron Donor ◽  
Acid Oxidase ◽  
Ascorbic Acid Oxidase ◽  
First Time

An ascorbic acid oxidase–ascorbic acid bioevent-based electron donor consumption mode is introduced into the PEC bioassay for the first time.

Small-Scale, Green-Powered Hydrogen Generation System

2008 ◽  
Author(s):  
David Arruda ◽  
David Browne ◽  
Chris Thongkham ◽  
Mansour Zenouzi
Keyword(s):  
Fossil Fuels ◽  
Hydrogen Generation ◽  
Low Cost ◽  
Hydrogen Gas ◽  
Thermal Design ◽  
Small Scale ◽  
Attractive Alternative ◽  
Hydrogen Fuel ◽  
Generation System ◽  
Average Consumer

One of the major road blocks in the transition from the current oil economy to the future hydrogen fuel economy is the availability of low cost hydrogen fuel for the average consumer. Currently, the price per kilogram of hydrogen fuel is higher than the cost of an equivalent measure of gasoline and its availability is limited to large metropolitan areas. Both of these factors prevent hydrogen from being an attractive alternative to gasoline for most consumers. The goal of this project, in a senior thermal design course, is to design and construct a low-cost hydrogen generation system for residential hydrogen fuel production and storage. The system will be powered by renewable sources of energy; namely a micro-scale wind turbine and a solar panel. The power generated will be used to power a small-scale PEM electrolyzer to produce hydrogen gas that will then be stored at low pressure in a safe, metal hydride storage tank. This relatively low cost system will provide the average consumer with the ability to safely produce hydrogen fuel for use in residential fuel cells or fuel cell-powered vehicles, making hydrogen fuel an attractive alternative to fossil fuels.

scholarly journals Anchoring carbon nanotubes and post-hydroxylation treatment enhanced Ni nanofiber catalysts towards efficient hydrous hydrazine decomposition for effective hydrogen generation

2019 ◽  
Vol 55 (61) ◽  
pp. 9011-9014 ◽  
Author(s):  
Pan Yang ◽  
Lijun Yang ◽  
Qiang Gao ◽  
Qiang Luo ◽  
Xiaochong Zhao ◽  
...  
Keyword(s):  
Activation Energy ◽  
Carbon Nanotubes ◽  
Hydrogen Generation ◽  
Hydrazine Decomposition ◽  
Effective Hydrogen

CNTs and hydroxylation enhanced Ni nanofibers for decomposing hydrous hydrazine with a reduced activation energy down to 51.05 kJ mol−1.

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