Utilization of α-olefins obtained by pyrolysis of waste high density polyethylene to synthesize α-olefin-succinic-anhydride based cold flow improvers

N. Miskolczi, Richard Sági, L. Bartha, Lívia Forcek

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

A new route of utilization of α-olefin rich hydrocarbon fractions obtained by waste polymer pyrolysis was investigated. α-olefin-succinic-anhydride intermediate-based pour point depressant additives for diesel fuel were synthesized, in which reactions needed α-olefins were obtained by pyrolysis of waste high-density polyethylene (HDPE). Fraction of α-olefins was produced by the de-polymerization of plastic waste in a tube reactor at 500°C in the absence of catalysts and air. C17-22 range of mixtures of olefins and paraffins were separated for synthesis and then, these hydrocarbons were reacted with maleic-anhydride (MA) for formation of α-olefin-succinic-anhydride intermediates. The olefin-rich hydrocarbon fraction contained approximately 60% of olefins, including 90%-95% α-olefins. Other intermediates were produced in the same way by using commercial C20 α-olefin instead of C17-22 olefin mixture. The two different experimental intermediates with number average molecular weights of 1850 g/mol and 1760 g/mol were reacted with different alcohols: 1-butanol, 1-hexanol, 1-octanol, i-butanol, and c-hexanol to produce their ester derivatives. The synthesized ten experimental pour point depressants were added in different concentrations to conventional diesel fuel, which had no other additive content before. The structure and efficiency of experimental additives were followed by different standardized and non-standardized methods. Results showed that the experimental additives on the basis of the product of waste pyrolysis were able to decrease not only the pour but also the cloud point and cold filter plugging point (CFPP) of diesel fuel, whose effects could be observed even if the concentration of additives was low. Furthermore, all additives had anti-wear and anti-friction effects in diesel fuel.

Original languageEnglish
Pages (from-to)302-310
Number of pages9
JournalRanliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology
Volume37
Issue number3
Publication statusPublished - Jun 2009

Fingerprint

Alkenes
Polyethylene
anhydrides
High density polyethylenes
alkenes
Olefins
pyrolysis
polyethylenes
Pyrolysis
diesel fuels
Diesel fuels
depressants
Hydrocarbons
hydrocarbons
Butenes
succinic anhydride
Maleic Anhydrides
Hexanols
1-Octanol
depolymerization

Keywords

  • α-olefin-succinic-anhydride intermediate based pour point depressant
  • Antiwear and antifriction effects
  • Chemical recycling
  • Petrochemical utilization
  • Waste polymer

ASJC Scopus subject areas

  • Chemical Engineering(all)
  • Physical and Theoretical Chemistry
  • Fuel Technology

Cite this

@article{41507716d5534a7ea1a50ccd3a561ee8,
title = "Utilization of α-olefins obtained by pyrolysis of waste high density polyethylene to synthesize α-olefin-succinic-anhydride based cold flow improvers",
abstract = "A new route of utilization of α-olefin rich hydrocarbon fractions obtained by waste polymer pyrolysis was investigated. α-olefin-succinic-anhydride intermediate-based pour point depressant additives for diesel fuel were synthesized, in which reactions needed α-olefins were obtained by pyrolysis of waste high-density polyethylene (HDPE). Fraction of α-olefins was produced by the de-polymerization of plastic waste in a tube reactor at 500°C in the absence of catalysts and air. C17-22 range of mixtures of olefins and paraffins were separated for synthesis and then, these hydrocarbons were reacted with maleic-anhydride (MA) for formation of α-olefin-succinic-anhydride intermediates. The olefin-rich hydrocarbon fraction contained approximately 60{\%} of olefins, including 90{\%}-95{\%} α-olefins. Other intermediates were produced in the same way by using commercial C20 α-olefin instead of C17-22 olefin mixture. The two different experimental intermediates with number average molecular weights of 1850 g/mol and 1760 g/mol were reacted with different alcohols: 1-butanol, 1-hexanol, 1-octanol, i-butanol, and c-hexanol to produce their ester derivatives. The synthesized ten experimental pour point depressants were added in different concentrations to conventional diesel fuel, which had no other additive content before. The structure and efficiency of experimental additives were followed by different standardized and non-standardized methods. Results showed that the experimental additives on the basis of the product of waste pyrolysis were able to decrease not only the pour but also the cloud point and cold filter plugging point (CFPP) of diesel fuel, whose effects could be observed even if the concentration of additives was low. Furthermore, all additives had anti-wear and anti-friction effects in diesel fuel.",
keywords = "α-olefin-succinic-anhydride intermediate based pour point depressant, Antiwear and antifriction effects, Chemical recycling, Petrochemical utilization, Waste polymer",
author = "N. Miskolczi and Richard S{\'a}gi and L. Bartha and L{\'i}via Forcek",
year = "2009",
month = "6",
language = "English",
volume = "37",
pages = "302--310",
journal = "Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology",
issn = "0253-2409",
publisher = "Science Press",
number = "3",

}

TY - JOUR

T1 - Utilization of α-olefins obtained by pyrolysis of waste high density polyethylene to synthesize α-olefin-succinic-anhydride based cold flow improvers

AU - Miskolczi, N.

AU - Sági, Richard

AU - Bartha, L.

AU - Forcek, Lívia

PY - 2009/6

Y1 - 2009/6

N2 - A new route of utilization of α-olefin rich hydrocarbon fractions obtained by waste polymer pyrolysis was investigated. α-olefin-succinic-anhydride intermediate-based pour point depressant additives for diesel fuel were synthesized, in which reactions needed α-olefins were obtained by pyrolysis of waste high-density polyethylene (HDPE). Fraction of α-olefins was produced by the de-polymerization of plastic waste in a tube reactor at 500°C in the absence of catalysts and air. C17-22 range of mixtures of olefins and paraffins were separated for synthesis and then, these hydrocarbons were reacted with maleic-anhydride (MA) for formation of α-olefin-succinic-anhydride intermediates. The olefin-rich hydrocarbon fraction contained approximately 60% of olefins, including 90%-95% α-olefins. Other intermediates were produced in the same way by using commercial C20 α-olefin instead of C17-22 olefin mixture. The two different experimental intermediates with number average molecular weights of 1850 g/mol and 1760 g/mol were reacted with different alcohols: 1-butanol, 1-hexanol, 1-octanol, i-butanol, and c-hexanol to produce their ester derivatives. The synthesized ten experimental pour point depressants were added in different concentrations to conventional diesel fuel, which had no other additive content before. The structure and efficiency of experimental additives were followed by different standardized and non-standardized methods. Results showed that the experimental additives on the basis of the product of waste pyrolysis were able to decrease not only the pour but also the cloud point and cold filter plugging point (CFPP) of diesel fuel, whose effects could be observed even if the concentration of additives was low. Furthermore, all additives had anti-wear and anti-friction effects in diesel fuel.

AB - A new route of utilization of α-olefin rich hydrocarbon fractions obtained by waste polymer pyrolysis was investigated. α-olefin-succinic-anhydride intermediate-based pour point depressant additives for diesel fuel were synthesized, in which reactions needed α-olefins were obtained by pyrolysis of waste high-density polyethylene (HDPE). Fraction of α-olefins was produced by the de-polymerization of plastic waste in a tube reactor at 500°C in the absence of catalysts and air. C17-22 range of mixtures of olefins and paraffins were separated for synthesis and then, these hydrocarbons were reacted with maleic-anhydride (MA) for formation of α-olefin-succinic-anhydride intermediates. The olefin-rich hydrocarbon fraction contained approximately 60% of olefins, including 90%-95% α-olefins. Other intermediates were produced in the same way by using commercial C20 α-olefin instead of C17-22 olefin mixture. The two different experimental intermediates with number average molecular weights of 1850 g/mol and 1760 g/mol were reacted with different alcohols: 1-butanol, 1-hexanol, 1-octanol, i-butanol, and c-hexanol to produce their ester derivatives. The synthesized ten experimental pour point depressants were added in different concentrations to conventional diesel fuel, which had no other additive content before. The structure and efficiency of experimental additives were followed by different standardized and non-standardized methods. Results showed that the experimental additives on the basis of the product of waste pyrolysis were able to decrease not only the pour but also the cloud point and cold filter plugging point (CFPP) of diesel fuel, whose effects could be observed even if the concentration of additives was low. Furthermore, all additives had anti-wear and anti-friction effects in diesel fuel.

KW - α-olefin-succinic-anhydride intermediate based pour point depressant

KW - Antiwear and antifriction effects

KW - Chemical recycling

KW - Petrochemical utilization

KW - Waste polymer

UR - http://www.scopus.com/inward/record.url?scp=67650521845&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=67650521845&partnerID=8YFLogxK

M3 - Article

VL - 37

SP - 302

EP - 310

JO - Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology

JF - Ranliao Huaxue Xuebao/Journal of Fuel Chemistry and Technology

SN - 0253-2409

IS - 3

ER -