DuPont launches alkylation conversion technology
DuPont Clean Technologies ( DuPont) launched DuPont ConvEx HF alkylation conversion technology. It enables refiners to convert volatile and toxic hydrofluoric acid (HF) alkylation units to the safer sulfuric acid alkylation technology. According to DuPont, the new technology also offers refiners the opportunity for capacity increases at minimal additional cost.
Conversion with DuPont ConvEx technology is reportedly estimated to be lower – approximately 40-60% of the cost of a grassroots sulfuric acid alkylation unit. In situations where plot space is available near the existing facility, downtime can be reduced by installing new equipment during normal operations, according to the company.
DuPont ConvEx technology is the difference in the way in which isobutane is recycled between the HF and sulfuric acid alkylation technologies. According to DuPont this difference is significant, , as conversion from HF to sulfuric acid alkylation means isobutane required from fractionation is cut in half, freeing up fractionation space and, therefore, effectively doubling the capacity of the alkylation unit without requiring any significant changes to the fractionation equipment.