68 / 222
البحـث الأول
مجلة النفط والتعاون العربي
161
العدد
- 2017
أربعون
المجلد الثالث و ال
2016
أوابك العلمية لعام
�
ص لبحوث العلمية الفائزة بجائزة
�
عدد خا
61
51
Fig (14) - Dollbergen Process - Source 1, 24
Other Processes:
There are other processes which are either not widely used or discontinued for
various reasons or very expensive to build and run. Briefly some of these are:
1-
The Phillips Petroleum PRPO process
1, 3
involves treatment with di-
ammonium phosphate, clay and hydro-treatment and fractionation. It is
expensive to build and run and the disposal of waste is environmentally
problematic.
2-
The Atomic vacuum Company Process
1, 3
involves treatment with
polymers to separate sludge and then followed by molecular distillation
and clay treatment to get refined base oils. Used in a plant in Mumbai,
India.
3-
The Interline Process1, 3 is an acid treatment process where the acid
and contaminants are neutralized by ammonium hydroxide and
potassium hydroxide. With the exception of a plant in Spain all the
plants of UK, South Korea and US were closed for environmental
reasons. Therefore, this process did not live up to the expectations,
when it came in 1994, of low investment and operating cost in addition
to its suitability for small plants.
There are other prototypes or pilot plants processes that have not been tried on
commercial scale such as but not limited to the: Bechtel MP process, Kellogg
ROSE process, Exxon process, German Entra process and so on.