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Encyclopedia > Water gas shift reaction

The water gas shift reaction is an inorganic chemical reaction in which water and carbon monoxide react to form carbon dioxide and hydrogen (water splitting): An inorganic chemical reaction describes a chemical reaction of an inorganic compound. ... Impact from a water drop causes an upward rebound jet surrounded by circular capillary waves. ... Carbon monoxide, with the chemical formula CO, is a colorless, odorless, and tasteless gas. ... Carbon dioxide (chemical formula: ) is a chemical compound composed of two oxygen atoms covalently bonded to a single carbon atom. ... This article is about the chemistry of hydrogen. ... Water splitting is the general term for a chemical reaction in which water is converted into oxygen and hydrogen. ...

CO + H2O → CO2 + H2

The water gas shift reaction is part of steam reforming of hydrocarbons[1] and is involved in the chemistry of catalytic converters. It was discovered by Italian physicist Felice Fontana in 1780. The reaction is slightly exothermic.[1] Steam reforming, hydrogen reforming or catalytic oxidation, is a method of producing hydrogen from hydrocarbons. ... Look up Hydrocarbon in Wiktionary, the free dictionary. ... Catalytic converter on a Dodge Ram Van. ... Felice Fontana (15 April 1730, Pomarolo - 10 March 1805, Florence) was an italian physicist who discovered the water gas shift reaction in 1780. ... 1780 was a leap year starting on Saturday (see link for calendar). ... In thermodynamics, the word exothermic outside heating describes a process or reaction that releases energy usually in the form of heat, but it can also release energy in form of light (e. ...


While this reaction could be used to produce hydrogen, the high temperatures required make it cost-prohibitive. The generation of hydrogen itself has significant promise as a replacement clean burning fuel itself however this reaction is usually done via the byproducts of fossil fuel combustion. The carbon monoxide can also be generated by bogs or other waste regenerative means. Hydrogen production is commonly completed from hydrocarbon fossil fuels via a chemical path. ...


Attempts to lower the reaction temperature of this reaction have been done primarily with a catalyst such as Fe3O4 (magnetite), or other transition metals and transition metal oxides. It has been suggested that this article or section be merged into Catalysis. ... Magnetite is a ferrimagnetic mineral with chemical formula Fe3O4, one of several iron oxides and a member of the spinel group. ... This article is in need of attention. ...


The reverse water gas shift reaction has recently found a possible application in In-Situ Resource Utilization on Mars to provide oxygen for fuel. In astronautics, In-Situ Resource Utilization (ISRU) is the way to describe the use the resources of the planetary body which is explored (Moon, Mars,...) to provide propellant, energy or consumables to the science payload or to the crew which has been deployed there. ...


The water gas shift reaction is sensitive to temperature, with the tendency to shift towards reactants as temperature increases due to Le Chatelier's principle. In fuel-rich hydrocarbon combustion processes, the water gas reaction at equilibrium state is often employed as a means to provide estimates for molar concentrations of burnt gas constituents. In chemistry, Le Chateliers principle, also called the Le Chatelier-Braun principle, can be used to predict the effect of a change in conditions on a chemical equilibrium. ...


See also

Water gas is a method of hydrogen production that combines steam and coke gas In the following chemical reaction: CO + H2O → CO2 + H2 In 1873, Professor Thaddeus S. C. Lowe developed and patented a process by which large amounts of hydrogen gas could be generated for residential and commercial use... In astronautics, In-Situ Resource Utilization (ISRU) is the way to describe the use the resources of the planetary body which is explored (Moon, Mars,...) to provide propellant, energy or consumables to the science payload or to the crew which has been deployed there. ...

References

  1. ^ a b HFCIT Hydrogen Production: Natural Gas Reforming (HTML). United States Department of Energy (2006-11-08). Retrieved on 2008-01-07.
HTML, an initialism of HyperText Markup Language, is the predominant markup language for web pages. ... The United States Department of Energy (DOE) is a Cabinet-level department of the United States government responsible for energy policy and nuclear safety. ... Year 2006 (MMVI) was a common year starting on Sunday of the Gregorian calendar. ... is the 312th day of the year (313th in leap years) in the Gregorian calendar. ... 2008 (MMVIII) is the current year, a leap year that started on Tuesday of the Anno Domini (or common era), in accordance to the Gregorian calendar. ... is the 7th day of the year in the Gregorian calendar. ...

  Results from FactBites:
 
Water gas shift reaction - Wikipedia, the free encyclopedia (179 words)
The water gas shift reaction is an organic reaction in which water and carbon monoxide react to form carbon dioxide and hydrogen (water splitting)
O → CO The water gas shift reaction is part of steam reforming of hydrocarbons and is involved in the chemistry of catalytic converters
The generation of hydrogen itself has significant promise as a replacement clean burning fuel itself however this reaction is usually done via the byproducts of fossil fuel combustion.
Title page for ETD etd-07062004-092012 ( Browse | Search ) All Available ETDs (355 words)
THE HIGH-TEMPERATURE, HIGH-PRESSURE HOMOGENEOUS WATER-GAS SHIFT REACTION IN A MEMBRANE REACTOR
One alternative for achieving this goal is to conduct the water-gas shift reaction under the high temperature and pressure conditions present at the coal gasifier outlet.
The gas-phase reaction kinetics were studied in the presence of an inert material (quartz), a common high-temperature construction material (Inconel®600) and potential membrane materials (Pd and a Pd-Cu alloy) in an effort to assess if the reaction can proceed at rates high enough to preclude the need for added catalysts.
  More results at FactBites »

 
 

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