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Revamping Fluid Catalytic Cracking Unit, and Optimizing Catalyst to Process Heavier Feeds

التفاصيل البيبلوغرافية
العنوان: Revamping Fluid Catalytic Cracking Unit, and Optimizing Catalyst to Process Heavier Feeds
المؤلفون: Dicho Stratiev, Mihail Ivanov, Ivan Chavdarov, Georgi Argirov, Giulia Strovegli
المصدر: Applied Sciences, Vol 13, Iss 3, p 2017 (2023)
بيانات النشر: MDPI AG, 2023.
سنة النشر: 2023
المجموعة: LCC:Technology
LCC:Engineering (General). Civil engineering (General)
LCC:Biology (General)
LCC:Physics
LCC:Chemistry
مصطلحات موضوعية: fluid catalytic cracking, VGO, H-Oil VGO, revamp, catalyst activity, coke selectivity, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999
الوصف: H-Oil gas oils have a higher density and higher nitrogen content, and consequently much lower reactivity than straight-run vacuum gas oils during fluid catalytic cracking (FCC). The conversion of H-Oil gas oils observed in a laboratory catalytic cracking unit at constant operating conditions showed a 20 wt.% lower conversion rate than straight-run hydrotreated vacuum gas oil. Thus, a revamp of commercial FCC units, and the selection of a higher activity catalyst with lower coke selectivity is needed to provide the stable trouble-free operation of the unit. The performed revamp of the commercial FCC unit allowed a stable operation at a higher throughput. It also allowed an increased riser outlet temperature from 532 to 550 °C; increased maximum allowable regenerator temperature from 705 to 730 °C; decreased afterburning from 12 to 6 °C; decreased NOx emissions in the flue gas from 250 to 160 mg/Nm3; improved catalyst regeneration; decreased catalyst losses to 0.0142 kg/t feed; and improved catalyst circulation at a higher throughput. It was confirmed in the commercial FCC unit that the H-Oil light vacuum gas oil is the least reactive H-Oil gas oil during catalytic cracking.
نوع الوثيقة: article
وصف الملف: electronic resource
اللغة: English
تدمد: 2076-3417
Relation: https://www.mdpi.com/2076-3417/13/3/2017; https://doaj.org/toc/2076-3417
DOI: 10.3390/app13032017
URL الوصول: https://doaj.org/article/50a79437474e441e9a76f7e765e3ade5
رقم الأكسشن: edsdoj.50a79437474e441e9a76f7e765e3ade5
قاعدة البيانات: Directory of Open Access Journals
الوصف
تدمد:20763417
DOI:10.3390/app13032017