نوع مقاله : پژوهشی
نویسندگان
1 دانشجوی دکترا، گروه مهندسی شیمی، دانشگاه فردوسی مشهد، مشهد، ایران
2 کارمند پالایشگاه گاز شهید هاشمینژاد، سرخس، ایران
3 دانشجوی کارشناسی ارشد، دانشکده مهندسی پلیمر و رنگ، دانشگاه صنعتی امیرکبیر، تهران، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
In sulfur recycling units (SRU), due to environmental considerations, increasing efficiency and reducing pollutants have been prioritized, and the importance factors affecting them are process design and the use of appropriate catalysts. In this study, in order to increase the process efficiency, feedback and feedforward control loops along with a high percentage (85%) TiO2 catalyst have been used, and economic aspects were investigated. The results obtained from SRU Unit 4 of Shahid Hasheminejad Refinery show that the new catalyst increases the temperature difference between different parts of the substrate compared to the usual catalyst. Also, its increases the hydrolysis of sulfur compounds and conversion efficiency. The optimal case and the lowest error are created in the case of simultaneous use of both control loops. According to economic estimates, the return on investment is a maximum of one month, and as a result, this plan is economically viable.
کلیدواژهها [English]