Waste alkali slag from refineries
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What are the main sources of waste alkaline slag from refineries?
Alkali slag, as the name implies, is the waste residue resulting from the use of alkalis. Alkalis are primarily used in oil refining plants for desulfurization, including the desulfurization of gasoline, diesel, and liquefied gas. When alkalis react with sulfides, alkali slag is formed. However, with the development of cleaner production processes, the alkali washing method has gradually been phased out
There is a new technology for desulfurization of liquefied gas, which achieves zero emissions of alkaline sludge; it allows for control at the source – since no alkaline sludge is generated, there is no need for any treatment! http://bbs.hcbbs.com/thread-1422362-1-1.html