Market Drivers


Simpler ODS technology results
in a cleaner plant


With a dramatic increase in the cost of crude oil, hydrogen, and plant construction, HDS could become prohibitively expensive, particularly if any further hydrogen demand has to be met using capacity expansion, larger Claus plants and/or new hydrogen plants. Furthermore, producing more hydrogen from carbonaceous fuels such as coal or coke will result in increased greenhouse gas emissions.

ODS requires neither hydrogen nor a Claus plant and operates at much milder conditions (low pressure and temperature) compared to HDS. HDS removes the sulfur as hydrogen sulfide gas that requires further Claus and tail gas treatment. ODS, on the other hand, uses an oxidant such as atmospheric oxygen or hydrogen peroxide to convert the sulfur to an easily absorbable and extractable high sulfur fraction.


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