DuPont signs contract with ISAB S.R.L. for IsoTherming Hydroprocessing technology 2/23/2021 DuPont Clean Technologies announced it has signed a contract with ISAB S.r.l. (“ISAB”, wholly owned by LUKOIL) to revamp the refinery’s existing trickle bed diesel hydrotreater at the Priolo Refinery in Siracusa, Italy with the IsoTherming® Hydroprocessing Technology. ISAB commissioned DuPont for the project in an effort to increase unit capacity to a target of 205 m3/hr (31,000 bpsd), while also extending catalyst cycle length. IsoTherming® Diesel Hydrotreaters enable refiners to produce high-quality, low-sulfur fuels that comply with increasingly stringent environmental requirements, but at lower energy consumption rates and operating costs than trickle bed hydroprocessing units. The IsoTherming® technology is commercially proven to process a wide range of feedstocks, from kerosene to vacuum gas oil, including 100 percent light cycle oil. The units are designed to provide refiners with consistent utility savings of 30-60% and capital cost savings potential up to 30% compared to trickle bed technologies.