Chemical Process
Kopper-Totzek coal gasifier

Can give ammonia synthesis gas (H₂ + N₂)
Is a moving bed reactor
Operate at very high pressure
Cannot use coking coal

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Chemical Process
One of the steps during refining of cane sugar consists of addition of hydrated lime to the sugar syrup followed by carbonation of the resulting solution. The purpose of this step is to

Remove the coloring matter from the syrup
Reduce the viscosity of the syrup
Improve the rate of crystallisation of sugar
Adjust the pH of the syrup

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