Mitigate fouling in ebullated-bed hydrocrackers
New monitoring tools help track and control asphaltene levels and solubility issues in resid products
The global supply of high-quality crude is decreasing and,
at the same time, the requirement for clean sulfur-free
products is increasing. During the last decade, ebullated-bed
residue hydrocracking has gained increasing interest due to its
capability to produce high-quality, light and middle
distillates in an economically effective way from heavy
residuum oils.1 Major economical drivers for
ebullated-bed hydrocracker processes are run length, maintenance costs and most
important, the achieved conversion. Very often, a compromise is
made between unit operations and conversion due to
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