It is the source of heat for powering the endothermic reaction, and it removes coke that tends to form on the iron oxide catalyst through the water gas shift reaction.
22.
The process utilizes a specially designed reactor and depends upon a proprietary metal catalyst to promote chemical conversion at the low temperatures where the water gas shift reaction and methanation take place.
23.
Further stages of efficient combustion ( with or without char deposits ) are known as gasification reactions, ending quickly when the reversible gas phase of the water gas shift reaction is reached.
24.
Ammonia production was one of the first commercial processes that required the production of hydrogen, and the cheapest and best way to obtain hydrogen was via the water-gas shift reaction.
25.
Catalytic amounts of water are used in both processes, but the Cativa process requires less, so the water-gas shift reaction is suppressed, and fewer by-products are formed.
26.
Carbon monoxide dehydrogenase ( CODH ) catalyzes the water gas shift reaction which provides CO for the biosynthesis of acetylcoenzyme A . The latter step is effected by the Ni-Fe enzyme acetylCoA synthase.
27.
The interest of cuprospinel arises in that magnetite is a widely used catalyst for many industrial chemical reactions, such as the Fischer Tropsch process, the Haber Bosch process and the water-gas shift reaction.
28.
With regard to synthetic fuels, an old but still important process is the Fischer-Tropsch synthesis of hydrocarbons from synthesis gas, which itself is processed via water-gas shift reactions, catalysed by iron.
29.
If, however, hydrogen is the desired end-product, the coal gas ( primarily the CO product ) undergoes the water gas shift reaction where more hydrogen is produced by additional reaction with water vapor:
30.
The different intermediates that is suggested are : HOCO, HCO and HCOO . In 2009 there are in total three mechanisms that are proposed for the water-gas shift reaction over Cu ( 111 ), given below.
