The Bosch reaction
is a chemical reaction
between carbon dioxide
that produces elemental carbon
and a 10% return of invested heat
. This reaction requires the introduction of iron as a catalyst and requires a temperature level of 530-730 degrees Celsius.
The overall reaction is as follows:
) + 2 H<sub>2</sub>(g) → C(s
) + 2 H<sub>2</sub>O(g)
The above reaction is actually the result of two reactions. The first reaction, the reverse water gas shift reaction
, is a fast one.
CO<sub>2</sub> + H<sub>2</sub> → CO + H<sub>2</sub>O
The second reaction controls the reaction rate
CO + H<sub>2</sub> → C + H<sub>2</sub>O
The overall reaction produces 2.3×10<sup>3</sup> joules
for every gram
of carbon produced at 650 °C
. Reaction temperatures are in the range of 450 to 600 °C.
The reaction can be accelerated in the presence of an iron
or nickel catalyst
also serves to speed up the reaction.
Together with the Sabatier reaction
the Bosch reaction is studied as a way to remove carbon dioxide and to generate clean water aboard a space station
The reaction is also used to produce graphite for radiocarbon dating
with Accelerator Mass Spectrometry
It is named after the German... Read More