Thermal and catalytic cracking of whole crude oils at high severity

被引:58
作者
Al-Absi, Akram A. [1 ]
Aitani, Abdullah M. [2 ]
Al-Khattaf, Sulaiman S. [3 ]
机构
[1] Univ Calgary, Schulich Sch Engn, Dept Chem & Petr Engn, Calgary, AB T2N 1N4, Canada
[2] King Fahd Univ Petr & Minerals, Ctr Refining & Petrochem, Res Inst, Dhahran 31261, Saudi Arabia
[3] Tasnee Petrochem, Natl Industrializat Co, Jubail Ind City 31961, Saudi Arabia
关键词
Crude oil; Catalytic cracking; Thermal cracking; Light olefins; Ethylene; Propylene; LIGHT OLEFINS; FCC; ZSM-5; CONVERSION; ZEOLITES; NAPHTHA; HZSM-5;
D O I
10.1016/j.jaap.2019.104705
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
The catalytic and thermal cracking of three types of whole crude oils, having API gravity at 34 degrees (AL), 39 degrees (AXL) and 51 degrees (ASL), were investigated via a fixed-bed micro-activity test (MAT) unit at high temperature between 600 and 650 degrees C. Equilibrium FCC catalyst (E-Cat)/ZSM-5 additive was used for catalytic cracking tests at 30 s and catalyst/oil (C/O) ratio of 2.0-6.0. For both thermal and catalytic cracking of all crude oils, the increase in reaction temperature resulted in higher conversion and enhanced yields of C-2-C-4 light olefins, LPG, coke, and dry gas at the expense of naphtha, heavy cycle oil (HCO), and light cycle oil (LCO). In thermal cracking, the yields of C-2-C-4 olefins at 650 degrees C were as follows: AL (22.8 wt.%) > AXL (19.0 wt.%) > ASL (18.8 wt.%) associated with naphtha yields of 34.4, 38.1 and 48.0 wt.%, respectively. Compared with thermal, catalytic cracking over E-Cat/ZSM-5 enhanced conversion, doubled the yields of light olefins and showed an increase in aromatics content of naphtha fraction. Contrary to thermal cracking, the yields of C-2-C-4 olefins in catalytic cracking were as follows: ASL (42.9 wt.%) > AXL (41 wt.%) > AL (39.1 wt.%) associated with naphtha yields of 31.7, 27.5, and 23.0 wt. %, respectively.
引用
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页数:11
相关论文
共 38 条
  • [1] Maximization of FCC light olefins by high severity operation and ZSM-5 addition
    Aitani, A
    Yoshikawa, T
    Ino, T
    [J]. CATALYSIS TODAY, 2000, 60 (1-2) : 111 - 117
  • [2] Conversion of Arabian Light Crude Oil to Light Olefins via Catalytic and Thermal Cracking
    Al-Absi, Akram A.
    Al-Khattaf, Sulaiman S.
    [J]. ENERGY & FUELS, 2018, 32 (08) : 8705 - 8714
  • [3] Catalytic Cracking of Light Crude Oil to Light Olefins and Naphtha over E-Cat and MFI: Microactivity Test versus Advanced Cracking Evaluation and the Effect of High Reaction Temperature
    Al-Khattaf, Sulaiman
    Saeed, Mian Rahat
    Aitani, Abdullah
    Klein, Michael T.
    [J]. ENERGY & FUELS, 2018, 32 (05) : 6189 - 6199
  • [4] Catalytic Cracking of Arab Super Light Crude Oil to Light Olefins: An Experimental and Kinetic Study
    Al-Khattaf, Sulaiman S.
    Ali, Syed A.
    [J]. ENERGY & FUELS, 2018, 32 (02) : 2234 - 2244
  • [5] New Trends in Olefin Production
    Amghizar, Ismael
    Vandewalle, Laurien A.
    Van Geem, Kevin M.
    Marin, Guy B.
    [J]. ENGINEERING, 2017, 3 (02) : 171 - 178
  • [6] [Anonymous], 2018, The future of petrochemicals
  • [7] [Anonymous], GRACE CATAL TECHNOL
  • [8] Effect of HZSM-5 zeolite addition to a fluid catalytic cracking catalyst.: Study in a laboratory reactor operating under industrial conditions
    Arandes, JM
    Abajo, I
    Fernández, I
    Azkoiti, MJ
    Bilbao, J
    [J]. INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2000, 39 (06) : 1917 - 1924
  • [9] Modified HZSM-5 as FCC additive for enhancing light olefins yield from catalytic cracking of VGO
    Awayssa, O.
    Al-Yassir, N.
    Aitani, A.
    Al-Khattaf, S.
    [J]. APPLIED CATALYSIS A-GENERAL, 2014, 477 : 172 - 183
  • [10] Application of ferrierite zeolite in high-olefin catalytic cracking
    Bastiani, Raquel
    Lam, Yiu Lau
    Henriques, Cristiane Assumpcao
    da Silva, Victor Teixeira
    [J]. FUEL, 2013, 107 : 680 - 687