Reactive distillation of tertiary olefin etherification for the purification of C8 α-olefin from F-T synthetic products

Ren, Tongtong; Liu, Suli; Li, Hong; Zhang, Angui; Li, Xingang; Yuan, Wei; Gao, Xin

doi:10.1016/j.seppur.2021.120012

Cited by 9 publications

(4 citation statements)

References 29 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…6,7 However, the ethylene cracking process also results in the generation of a signicant quantity of low-value by-products, including hexene, octene, and other long chain a-olens (C 4+ ). Although these a-olens are valuable non-renewable petrochemical resources, [8][9][10][11][12] their chemical inertness poses a signicant challenge when attempting to broaden their applications. 13,14 In fact, a portion of these olens are presently being combusted, leading to a substantial waste of precious petroleum resources and a rise in carbon emissions.…”

Section: Introductionmentioning

confidence: 99%

Achieving high molecular weight alternating copolymers of 1-octene with methyl acrylate via Lewis acid catalyzed copolymerization

Wan,

Dan,

Huang

et al. 2024

RSC Adv.

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Achieving high molecular weight alternating copolymers of 1-octene with methyl acrylate via Lewis acid catalyzed copolymerization

Wan,

Dan,

Huang

et al. 2024

RSC Adv.

View full text Add to dashboard Cite

show abstract

“…Although the included α-olefins impart gasoline with high octane number, they also lead to serious environmental problems and engine breakdown . In order to alleviate such problems, technologies have been developed to reduce olefin content in gasoline, including converting tert -olefins in FCC light gasoline into ethers . However, it is difficult for the ether products to be separated and purified effectively, which limits their application as solvents, etc.…”

Section: Introductionmentioning

confidence: 99%

A Novel Family of Stable Polyelectrolyte Complexes Based on Mixed Olefins–Maleic Anhydride Copolymer

et al. 2023

View full text Add to dashboard Cite

In the present study, the copolymer of mixed olefins included in unetherified gasoline and maleic anhydride (PUGM) was prepared by self-stabilized precipitation polymerization (2SP) and employed for the synthesis of a new family of stable polyelectrolyte complexes (PECs). Polyanionic saponified PUGM partially grafted with methoxy poly(ethylene glycol) (PUGMS-g-mPEG) and polycationic quaternized PUGM (PUGMQ) were both derived from PUGM via the facile modification of anhydride groups. The particle size, zeta potential, morphology, and stability of self-assembled PEC particles were investigated thoroughly. Strikingly, the introduction of long mPEG side chains (M n = 4000) had a remarkable effect on the self-assembled particles, which displayed a constant particle size of ∼200 nm regardless of varying n+/n−. Moreover, it also enhanced the salt tolerance and long-term stability of PEC particles significantly. Our work not only provides an effective approach to PECs from petroleum resources with low cost but also deepens the understanding of the relationship between the chain structure of polyelectrolytes and the stability of PECs.

show abstract

“…In our previous work, a great number of methods such as narrow cut, reactive distillation, adsorption, urea-adduction and extractive distillation were used to remove components other than ⊍-olefin in F-T synthetic products. [9][10][11][12] Among these methods, urea-adduction is the most pragmatic for separating iso-hydrocarbons and n-hydrocarbons.…”

Section: Introductionmentioning

confidence: 99%

“…With an arrange of iso‐hydrocarbons and n ‐hydrocarbons, F–T synthetic products suffer from disadvantages, including complex composition and difficult separation. In our previous work, a great number of methods such as narrow cut, reactive distillation, adsorption, urea‐adduction and extractive distillation were used to remove components other than α‐olefin in F–T synthetic products 9–12 …”

Section: Introductionmentioning

confidence: 99%

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

Self Cite

View full text Add to dashboard Cite

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).

show abstract

Reactive distillation of tertiary olefin etherification for the purification of C8 α-olefin from F-T synthetic products

Cited by 9 publications

References 29 publications

Achieving high molecular weight alternating copolymers of 1-octene with methyl acrylate via Lewis acid catalyzed copolymerization

Achieving high molecular weight alternating copolymers of 1-octene with methyl acrylate via Lewis acid catalyzed copolymerization

A Novel Family of Stable Polyelectrolyte Complexes Based on Mixed Olefins–Maleic Anhydride Copolymer

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

Contact Info

Product

Resources

About