Catalytic cracking of crude oil to light olefins and naphtha: Experimental and kinetic modeling

Usman, Abdulhafiz; Siddiqui, M. Abdul Bari; Hussain, Abdelrahman; Aitani, Abdullah M.; Al-Khattaf, S.

doi:10.1016/j.cherd.2017.01.027

Cited by 77 publications

(82 citation statements)

References 39 publications

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“…The choice of temperature of the process and appropriate catalyst is crucial for the successful course of the reaction and its yield. The latter depends not only on the catalyst activity but also on its selectivity, which permits avoiding side reactions (Abbasov et al, ; Bulushev and Ross, ; Mortensen et al, ; Ong and Bathia, ; Siswanto et al, ; Stefanidis et al, ; Usmana et al, ; Zhang et al, ; Zhu et al, ). The presented research was not intended to simulate the cracking process in conditions similar to real ones but to indicate the possibility of quick testing and selection of the process catalysts by their selectivity to specific product fractions.…”

Section: Introductionmentioning

confidence: 99%

Catalytic Cracking of Rapeseed Oil with Binary Oxide Systems: An Alternative to Production of Petrochemicals

Przekop

Osińska-Broniarz

Martyła

et al. 2020

J Americ Oil Chem Soc

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The aim of this work is to evaluate analytical tools for fast assessment of the catalysts' ability to conduct a catalytic cracking process with the use of vegetable oils. The practical context of the presented concept relates to the use of cracking reaction products as valuable chemical raw materials. The proposed analytical tools allow for quick assessment of reaction products, indication of the molecular weight range, or the presence of specific functional groups. We want to emphasize that vegetable oils can not only be raw products for biofuels but also an alternative to petrochemicals. The study was undertaken to determine the influence of acid-base properties of catalysts on the rapeseed oil conversion process at 500 C. The effect of these properties on the character of the process and quality of the products obtained was shown to be very high. Basic correlations between the formation of coke, gaseous products and dehydrogenation products, and acid-base parameters of the individual catalysts have been observed. The use of spectroscopic methods (FTIR -Fourier Transform Infrared Spectroscopy, 1 H NMR -Nuclear Magnetic Resonance) for fast qualitative analysis of the products is described.

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Section: Introductionmentioning

confidence: 99%

Catalytic Cracking of Rapeseed Oil with Binary Oxide Systems: An Alternative to Production of Petrochemicals

Przekop

Osińska-Broniarz

Martyła

et al. 2020

J Americ Oil Chem Soc

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“…There is a need for a fundamentally-based understanding of the processes affecting coke formation [25][26][27]. Issues with coke are particularly relevant for FCC riser operation and for the implementation of downflow reactors, where there are claims that higher catalyst/oil ratios (C/O) lead to enhanced unit performance [28][29][30].…”

Section: Introductionmentioning

confidence: 99%

Catalyst/Feedstock Ratio Effect on FCC Using Different Catalysts Samples

Alkhlel

Lasa

2019

Catalysts

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The present study is a follow-up to a recent authors contribution which describes the effect of the C/O (catalyst/oil) ratio on catalytic cracking activity and catalyst deactivation. This study, while valuable, was limited to one fluidized catalytic cracking (FCC) catalyst. The aim of the present study is to consider the C/O effect using three FCC catalysts with different activities and acidities. Catalysts were characterized in terms of crystallinity, total acidity, specific surface Area (SSA), temperature programmed ammonia desorption (NH3-TPD), and pyridine chemisorption. 1,3,5-TIPB (1,3,5-tri-isopropyl benzene) catalytic cracking runs were carried out in a bench-scale mini-fluidized batch unit CREC (chemical reactor engineering centre) riser simulator. All data were taken at 550 °C with a contact time of 7 s. Every experiment involved 0.2 g of 1,3,5-TIPB with the amount of catalyst changing in the 0.12–1 g range. The resulting 0.6–5 g oil/g cat ratios showed a consistent 1,3,5-TIPB conversion increasing first, then stabilizing, and finally decreasing modestly. On the other hand, coke formation and undesirable benzene selectivity always rose. Thus, the reported results show that catalyst density affects both catalyst coking and deactivation, displaying an optimum C/O ratio, achieving maximum hydrocarbon conversions in FCC units.

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“…A number of lumps for catalytic cracking were reported in the literature but most of them lumped the gaseous products in a single lump, thereby making it difficult to optimize or maximize a particular gas, for instance propylene. Usman et al [14] conducted experiment using three different crudes (Super Light, Extra Light and Arab Light) catalytically cracked to produce light olefins, where they presented propane and propylene as different lumps. They used different catalysts: base-equilibrated catalyst and others; (Z30 and Z1500) which are the base-equilibrated catalyst + MFI Zeolite at varying Si/Al ratio.…”

Section: Introductionmentioning

confidence: 99%

Maximization of propylene in an industrial FCC unit

2018

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The FCC riser cracks gas oil into useful fuels such as gasoline, diesel and some lighter products such as ethylene and propylene, which are major building blocks for the polyethylene and polypropylene production. The production objective of the riser is usually the maximization of gasoline and diesel, but it can also be to maximize propylene. The optimization and parameter estimation of a six-lumped catalytic cracking reaction of gas oil in FCC is carried out to maximize the yield of propylene using an optimisation framework developed in gPROMS software 5.0 by optimizing mass flow rates and temperatures of catalyst and gas oil. The optimal values of 290.8 kg/s mass flow rate of catalyst and 53.4 kg/s mass flow rate of gas oil were obtained as propylene yield is maximized to give 8.95 wt%. When compared with the base case simulation value of 4.59 wt% propylene yield, the maximized propylene yield is increased by 95%.

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Catalytic cracking of crude oil to light olefins and naphtha: Experimental and kinetic modeling

Cited by 77 publications

References 39 publications

Catalytic Cracking of Rapeseed Oil with Binary Oxide Systems: An Alternative to Production of Petrochemicals

Catalytic Cracking of Rapeseed Oil with Binary Oxide Systems: An Alternative to Production of Petrochemicals

Catalyst/Feedstock Ratio Effect on FCC Using Different Catalysts Samples

Maximization of propylene in an industrial FCC unit

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