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PRODUCTS
INTRODUCTION
COMPLETE SETS
OF AC&DC DESALTING EQUIPMENT
[BACKGROUND INTRODUCTION]
From 1993,the requirements of more efficient desalting
mentioned by refinery plant was stricter than before
concerning result of desalter to prevent catalytic cracking
heavy crude oil technology in China. A group established
by our company, Beijing Design Institute and Nanjing
Refinery Plant of Jingling Petrochemical Corporation
developed new AC&DC desalting equipment considering
and applying the function of AC&DC to coalescence
of water drops. The new equipment means the technology
was advanced in the world and means the beginning of
desalting time with high efficiency. Many experts in
petroleum refinery and technicians in refinery plants
approved the technology. The application of the technology
entered into peak time with more and more attention
to prevent equipment from corrosion and had been used
widely in refinery equipment in petrochemical industry.
Sets of AC&DC desalting equipment which exported
to Sudan Khartoum Refinery Plant expresses its smart
to the world.
[EQUIPMENT COMPOSITION]
[TECHNICAL FEATURE]
As positive electro plate is adjacent negative electro
plates and negative eletro plate is adjacent positive
eletro plates along with axis of vessel one by one,
the electric fields are light AC field, light DC field
and strong DC field. In light AC field, emulsified films
around the water drops oscillate and break down under
the changeable AC field effect. They coalesce to bigger
water drops and settle down from oil phrase. Then the
crude oil enter into the DC field. Under the DC field
effect, the different kinds of small water drops occur
electrophoresis and coalescence in the electro plates.
At the meaning horizonal electrophoretic collide with
vertical settling drops greatly so that the drops coalescence
and settle down furtherm. It is prior to AC desalting
technology with high efficiency of desalting and dehydrating,
stable operation, wide application for different crude
oil, low consumption of energy and convenient maintenance
etc.
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