Cationic Oligomerization of Octene Fraction under Flow Conditions

Tsvetkov, O. N.; Максимов, А. Л.; Toporishcheva, R. I.; Kolesova, G. E.; Cheremiskin, A. L.

doi:10.1134/s0965544119110136

Cited by 3 publications

(3 citation statements)

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“…Liquids flow system and solids flow system are separated by the CFuge (i.e. centrifugal filter) model 4 in order to obtain urea‐adduction products. According to the study on Fu et al ., 36 as PENG‐ROB is more suitable for ternary hydrocarbon mixtures, including linear alkanes and alkenes, the components in the C8 fraction of F–T fit this model well 32 .…”

Section: Modeling Design and Tac Calculationmentioning

confidence: 99%

“…As an important organic chemical raw material and intermediate, α‐olefin is a linear olefin containing only a single terminal CC double bond and has been under the spotlight in light of its potential applications in the areas of polyethylene plastics 1 and poly alpha olefin (PAO) lubricants 2–4 . Thanks to its polymerizability and linearity, low‐cost exploitation of α‐olefin has been investigated worldwide 5–7 .…”

Section: Introductionmentioning

confidence: 99%

“…As an important organic chemical raw material and intermediate, ⊍-olefin is a linear olefin containing only a single terminal C C double bond and has been under the spotlight in light of its potential applications in the areas of polyethylene plastics 1 and poly alpha olefin (PAO) lubricants. [2][3][4] Thanks to its polymerizability and linearity, low-cost exploitation of ⊍-olefin has been investigated worldwide. [5][6][7] Under the basic national conditions of rich coal and less oil, it would be energy-efficient if the separation of a-olefins from Fischer-Tropsch (F-T) products using fine chemicals was feasible.…”

Section: Introductionmentioning

confidence: 99%

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Performance improvement potential of integrated process of urea‐adduction and distillation for separation of 1‐octene from F–T synthetic products

Ren

Liu²,

et al. 2022

J of Chemical Tech & Biotech

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BACKGROUND C8 α‐olefins are regarded as top value‐added compounds from Fischer–Tropsch (F−T) products. However, the separation of purified C8 α‐olefins has proven to be a daunting challenge owing to their relative volatility. As the traditional methods for C8 α‐olefins purification are energy‐ and capital cost‐intensive, an efficient method for the separation of n‐hydrocarbons and iso‐hydrocarbons will provide a valuable and more sustainable alternative to address these challenges. RESULTS In the urea‐adduction method, the purity of 1‐octene was increased from 96.02 to 98.04 wt%, and the yield was 93.62 %, which broke the limitation of traditional distillation on the purification of 1‐octene. By combining the urea‐adduction method and distillation, a promising and energy‐efficient integrated separation process was proposed. First, it recovers C8 n‐hydrocarbons through adduction reactions. Second, 1‐octene and n‐octane are separated with integrated distillation technology. The results indicated that this process can be utilized to recover 1‐octene from the C8 fraction of F–T synthetic products with a recovery yield of 93.6 % and an increase in purity from 65.6 to 98.7 wt%. As shown in Fig. 6(b), process modeling demonstrates that it trims energy consumption to 50.1% and total TAC to 55.1% in comparison with the traditional separation process. CONCLUSION It was found that the integrated process can produce high‐purity 1‐octene, indicating that the integration process demonstrates clear potential advantages, such as reducing energy consumption and increasing economic value. This approach can be adopted on an industrial scale. © 2022 Society of Chemical Industry (SCI).

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Section: Modeling Design and Tac Calculationmentioning

confidence: 99%