Production of Ethylene from Ethane Fraction by a Method Alternative to Steam Cracking

Герзелиев, И. М.; Fairuzov, D. Kh.; ГЕРЗЕЛИЕВА, Ж.И.; Максимов, А. Л.

doi:10.1134/s1070427219110120

Cited by 7 publications

(8 citation statements)

References 10 publications

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“…The composition of initial ethane fraction: methane-0.17 wt.%, ethane-99.83 wt.%. As can be seen from the presented data, the ethylene selectivity for the developed technology significantly exceeds the level of the thermal pyrolysis technology [18]. Our calculations showed that the specific capital costs (ethylene productivity of 300 thousand tons/year) for the developed technology for the oxidative conversion of ethane to ethylene with separate feed and an oxidizer in comparison with thermal pyrolysis of ethane are 630 and 1035 USD/t of ethylene, respectively.…”

Section: Chemical Looping Oxidative Dehydrogenationmentioning

confidence: 76%

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Catalytic Dehydrogenation of Ethane: A Mini Review of Recent Advances and Perspective of Chemical Looping Technology

et al. 2021

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Dehydrogenation processes play an important role in the petrochemical industry. High selectivity towards olefins is usually hindered by numerous side reactions in a conventional cracking/pyrolysis technology. Herein, we show recent studies devoted to selective ethylene production via oxidative and non-oxidative reactions. This review summarizes the progress that has been achieved with ethane conversion in terms of the process effectivity. Briefly, steam cracking, catalytic dehydrogenation, oxidative dehydrogenation (with CO2/O2), membrane technology, and chemical looping are reviewed.

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Section: Chemical Looping Oxidative Dehydrogenationmentioning

confidence: 76%

“…Steam cracking process produces about >140 megatons of ethylene per year, converting ethane to ethylene through a single-pass yield of approximately 50% at high temperatures (up to 1100 • C) [2,18]. High ethylene yield is limited due to endothermic cracking reactions.…”

Section: Steam Cracking Processmentioning

confidence: 99%

Catalytic Dehydrogenation of Ethane: A Mini Review of Recent Advances and Perspective of Chemical Looping Technology

et al. 2021

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“…It utilized statistical analysis to improve olefin yield, conversion, and selectivity (from steam amount). The study using RSM was then continued 45) in the pilot-scale experiment, with a focus on the effect of conversion selectivity towards olefins yield.…”

Section: Introductionmentioning

confidence: 99%

Propylene Yield Assessment utilizing Response Surface Methodology for Naphtha Pyrolysis Cracking

Zakria¹,

Jaafar²,

Nawawi³

et al. 2023

Evergreen

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The study was carried out at the steam cracker furnace, Short Residence Time (SRT) VII type to investigate the impact of selected input variables on the Propylene Product Yield. The statistical analysis was conducted as normal data after successful outliers and residuals clearance using data stability and normality verification tests. The Response Surface Methodology (RSM) analysis was performed to establish the reliable Propylene Product Yield model using statistical software, Minitab version 21. RSM is a robust statistical approach that may utilize the available statistical software that is cheaper and practical to be used by Operations personnel at the olefin plant. It is an excellent alternative to the Olefins Licensor's simulation software that is currently used by the olefin plant worldwide. The analysis of variance (ANOVA) table was utilized to select only significant variables with a p-value of <0.05 for the model. The established final model indicated that Coil Outlet Temperature (COT) was the most important input variable for the Propylene Product Yield generation with a factor of 49.4, compared to -7.76 for Flow of Naphtha, -4.3 for Flow of Integral Burner, 0.292 for Flow of Dilution Steam, and 0.05947 for Flow of Hearth Burner. Besides, the Response Optimizer evaluated that the Propylene Product Yield at the studied SRT VII could be maximized at 13.24% by controlling the process operating parameters with; Flow of Hearth Burner at 9476 kg/hr, Flow of Integral Burner at 609 kg/hr, Flow of Dilution Steam at 40960 kg/hr, Flow of Naphtha at 63.50 t/hr, and COT at 810 °C.

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“…[1][2][3][4][5][6] The prevailing C 2 H 4 production route is the steam cracking of hydrocarbons. [1][2][3][4][6][7][8][9][10][11][12][13][14] The steam cracking of ethane (C 2 H 6 ) produces C 2 H 4 and hydrogen (H 2 ) as shown below. [1][2][3]5,6,14,15…”

mentioning

confidence: 99%

“…The combination of C 2 H 6 and O 2 created a potentially explosive mixture, detracting from industrial implementation. 1,3,5,7,11,13,15 In addition, O 2 co-feed promotes non-selective oxidation of the desired alkene products to carbon oxides, decreasing C 2 H 4 selectivity and yield. 3,[5][6][7]13,17,20 Further, the co-feed approach requires a cryogenic air separation unit for obtaining high-purity O 2 , both energy and capital intensive.…”

mentioning

confidence: 99%

Electro-Oxidative Dehydrogenation of Ethane to Ethylene Using Lanthanum-Strontium-Iron Oxide Perovskite Electrocatalysts

Kasick,

Hajer,

Wolfe

et al. 2023

J. Electrochem. Soc.

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Developing alternative, industrially viable ethylene production routes has received important research attention. One chemical pathway of interest is the oxidative dehydrogenation (ODH) of ethane, although issues such as product selectivity, combustion hazards, and oxidizer supply have hindered the practical scale-up of this technology. The presented work describes the use of a solid oxide fuel cell (SOFC) platform employing lanthanum-strontium-iron oxide perovskite (La1-xSrxFeO3-δ, or LSFx) electrocatalysts to perform electrochemical-ODH (e-ODH), a process design that has the potential to address the challenges of ODH implementation. The effects of La and Sr stoichiometry, operating temperature, and current density are reported. The highest performance was observed using a La:Sr ratio of 0.50 (LSF0.50) at 750°C and a current density of 0.50 A·cm-2, achieving an ethane conversion of 18.7 ± 0.3%, ethylene selectivity of 91.4 ± 1.9%, and ethylene yield of 17.1 ± 0.1%. These results demonstrate several potential advantages for utilizing a SOFC platform to perform e-ODH of ethane to ethylene.

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Production of Ethylene from Ethane Fraction by a Method Alternative to Steam Cracking

Cited by 7 publications

References 10 publications

Catalytic Dehydrogenation of Ethane: A Mini Review of Recent Advances and Perspective of Chemical Looping Technology

Catalytic Dehydrogenation of Ethane: A Mini Review of Recent Advances and Perspective of Chemical Looping Technology

Propylene Yield Assessment utilizing Response Surface Methodology for Naphtha Pyrolysis Cracking

Electro-Oxidative Dehydrogenation of Ethane to Ethylene Using Lanthanum-Strontium-Iron Oxide Perovskite Electrocatalysts

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