desalting

The experimental results concerning demulsified ability of block copolymers of ethylene and propylene oxides wich may be used as  demulsifiers for oil emulsions have been represented. The dependence of their efficiency on the content of oxyethylene and oxypropylene groups in the molecule has been determined. The dependence of their degree of dehydration on the temperature and emulsion composition has been determined. 

Наведено результати лабораторного дослідження деемульгаційної здатності нового
деемульгатора ДМ-3 на основі суміші оксидів етилену та пропілену, порівняння його
ефективності з промисловими деемульгаторами. Після одержання позитивних
результатів лабораторних досліджень проведено промисловий пробіг деемульгатора ПМ
1441 марки Б, який має подібний склад до ДМ-3, та порівняння з імпортним
деемульгатором Demtrol 4225. Результати роботи в промислових умовах деемульгатора
ПМ-1441 марки Б дають підстави для проведення промислових випробувань

The review of methods of industrial equipment corrosion prevention is presented. Application of technological means using chemical reagents and surface-active substances is considered, namely dehydration and desalting of hydrocarbon products of deposits by surface-active substances – so called demulsifiers. Corrosion inhibitors and neutralizing agents for protection of condensation-refrigeration equipment and overheads of atmospheric columns are examined. The amount of reagents to be used and the process conditions were determined.

The investigation results about physico-chemical properties of block copolymers based on ethylene and propylene oxides and their solutions which may be used as demulsifiers for oil emulsions have been represented. The dependence of their physico-chemical properties on the content of oxyethylene and oxypropylene groups in the molecule has been determined. On the basis of the technological suitability a series of block copolymers was chosen and their demulsified ability was examined.