April 19, 2024
Babak Aghel

Babak Aghel

Academic rank: Associate professor
Address: Department of Chemical Engineering, Faculty of Energy, Kermanshah University of Technology (KUT), Imam Khomeini Highway, Kermanshah, Iran
Education: Ph.D in Chemical Engineering
Phone: 083-38305000 (1168)
Faculty: Faculty of Engineering

Research

Title
Stripping of hydrogen sulfide from crude oil desalter effluent via different adsorbents
Type Article
Keywords
Adsorption · Crude oil desalter efuent · Copper oxide · Hydrogen sulfde · Reboiler limescale · Activated carbon
Researchers fateme karami، Babak Aghel، Peyman Moradi، Mehdi Karimi

Abstract

This study investigated the removal of H2S from the effluent of the crude oil desalting plant using batch mode adsorption. Three adsorbents, including Cu2O, reboiler limescale, and activated carbon were used for H2S removal. Initial concentration, adsorbent dosage, and pH were also examined using Box–Behnken design and the H2S removal rate was considered as the response. The highest H2S removal rate for Cu2O under optimum conditions was 95%, obtained at pH = 5.6, an adsorbent dosage of 1830 mg/l, and an initial concentration of 435.9 mg/l. To achieve the highest removal of H2S, the optimum conditions were determined as pH = 9, an adsorbent dosage of 1670 mg/l, and an initial concentration of 445.7 mg/l for reboiler limescale, and pH = 5.4, an adsorbent dosage of 1750 mg/l, and an initial concentration of 282.82 mg/l for activated carbon. At these conditions, the removal percentage of H2S were 45.6 and 51.45 for reboiler limescale and activated carbon, respectively. Also for a more detailed study, the physicochemical properties of adsorbents were also investigated using FT-IR, SEM, and BET techniques.