The presence of chloride in refinery streams typically has two sources: crude oil and the catalytic reforming unit. While less common, certain crude oil assays do contain species of organic chlorides that are not removed in the desalter. The most common source of chloride, however, is the catalytic reforming unit.
These units utilise metal and acid functionality, with chloride injected and adsorbed onto the catalyst to provide the acid function necessary for optimal conversion and selectivity.
Chemicals, oil and gas, petrochemicals
This chloride is not permanently bound to the support and is therefore sent out with all product streams. Effects of chloride in downstream operations can be:
- corrosion of austenitic stainless steels
- ammonium chloride salting - corrosion and pressure drop issues
- corrosion of downstream piping/equipment
A fixed bed of PURASPEC chloride removal adsorbent is the best solution for this problem. We offer sorbents for the removal of inorganic and organic chloride; levels which can vary depending on the chloride source among other factors. Johnson Matthey can provide a tailored solution that is specific to the application and offers technology packages beyond absorbents and adsorbents where requested.
Performance is key when it comes to chloride sorption. Poor materials will result in the formation of harmful actors such as organic chlorides or green oils. These will result in premature and very expensive outages of equipment and refinery processes. PURASPEC adsorbents have been formulated to provide the best protection against these undesired products, giving the user peace of mind that they are doing the most that they can to maximize profitability and reliability within their plant.