Page 94 - Chemical and process design handbook
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Speight_Part II_A 11/7/01 3:16 PM Page 2.35
ALKANOLAMINES 2.35
Product (gas)
Absorber Regenerator
Feedstock (gas)
FIGURE 2 Gas cleaning using an aqueous alkanolamine.
ture of oxides reacting with ammonia. A variety of substituted alka-
nolamines can also be made by reaction of oxide with the appropriate
amine.
Alkanolamines are used for gas cleaning (i.e., to remove carbon dioxide
and hydrogen sulfide from gas streams) (Fig. 2), particularly in the petro-
leum and natural gas industries.
