Repair of crude oil filter elements
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The filter element tubes for the feed oil in the petrochemical hydrogenation workshop are designed and manufactured by the American company PALI. They have a filtration precision of 20 μm and consist of sintered mesh filters. As a result of prolonged use over a period of 1.5 years for filtering and separating feed oil, oil-based impurities and coke particles accumulate on the surface inside and outside the filter elements, as well as in the gaps between them, leading to the formation of tar-like deposits that cause severe blockages within the filters, preventing them from functioning properly. This in turn blocks the catalysts, affecting production quality significantly. Chemical cleaning methods combined with high-pressure water jet technology were used to clean these filter elements, achieving satisfactory results. **It reduces production costs.
The raw oil filter elements in the petrochemical hydrogenation plant became severely clogged due to prolonged use; however, through chemical cleaning and high-pressure water jet technology, their functionality was effectively restored, thereby reducing production costs. .
We call this a javelin filter element; it can be treated with acid-base solutions, high-pressure water jets, or calcination, and its performance can be restored to about 70% of that of domestic counterparts, at a price of less than one-third