Wood-derived olefins by steam cracking of hydrodeoxygenated tall oils

Stephen P. Pyl; Thomas Dijkmans; Jinto Manjaly Anthonykutty; Marie-Françoise Reyniers; Ali Harlin; Kevin M. van Geem; Guy B. Marin

doi:10.1016/j.biortech.2012.09.037

Wood-derived olefins by steam cracking of hydrodeoxygenated tall oils

Stephen P. Pyl, Thomas Dijkmans, Jinto Manjaly Anthonykutty, Marie-Françoise Reyniers, Ali Harlin, Kevin M. van Geem^*, Guy B. Marin

^*Corresponding author for this work

Ghent University

Research output: Contribution to journal › Article › Scientific › peer-review

43 Citations (Scopus)

Abstract

Tall oil fractions obtained from Norwegian spruce pulping were hydrodeoxygenated (HDO) at pilot scale using a commercial NiMo hydrotreating catalyst. Comprehensive two dimensional gas chromatography (GC × GC) showed that HDO of both tall oil fatty acids (TOFA) and distilled tall oil (DTO) produced highly paraffinic hydrocarbon liquids. The hydrotreated fractions also contained fatty acid methyl esters and norabietane and norabietatriene isomers. Steam cracking of HDO–TOFA in a pilot plant revealed that high light olefin yields can be obtained, with 35.4 wt.% of ethene and 18.2 wt.% of propene at a coil outlet pressure (COP) of 1.7 bara, a dilution of 0.45 kg_steam/kg_HDO–TOFA and a coil outlet temperature (COT) of 820 °C. A pilot plant coking experiment indicated that cracking of HDO–TOFA at a COT of 850 °C results in limited fouling in the reactor. Co-cracking of HDO tall oil fractions with a typical fossil-based naphtha showed improved selectivity to desired light olefins, further demonstrating the potential of large scale olefin production from hydrotreated tall oil fractions in conventional crackers.

Original language	English
Pages (from-to)	48-55
Journal	Bioresource Technology
Volume	126
DOIs	https://doi.org/10.1016/j.biortech.2012.09.037
Publication status	Published - 2012
MoE publication type	A1 Journal article-refereed

Funding

Project code: 82227

Keywords

biomass
HDO
olefins
steam cracking
tall oil

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10.1016/j.biortech.2012.09.037

Cite this

@article{86f21914915a4400a05bd1e35de70aaf,

title = "Wood-derived olefins by steam cracking of hydrodeoxygenated tall oils",

abstract = "Tall oil fractions obtained from Norwegian spruce pulping were hydrodeoxygenated (HDO) at pilot scale using a commercial NiMo hydrotreating catalyst. Comprehensive two dimensional gas chromatography (GC × GC) showed that HDO of both tall oil fatty acids (TOFA) and distilled tall oil (DTO) produced highly paraffinic hydrocarbon liquids. The hydrotreated fractions also contained fatty acid methyl esters and norabietane and norabietatriene isomers. Steam cracking of HDO–TOFA in a pilot plant revealed that high light olefin yields can be obtained, with 35.4 wt.% of ethene and 18.2 wt.% of propene at a coil outlet pressure (COP) of 1.7 bara, a dilution of 0.45 kgsteam/kgHDO–TOFA and a coil outlet temperature (COT) of 820 °C. A pilot plant coking experiment indicated that cracking of HDO–TOFA at a COT of 850 °C results in limited fouling in the reactor. Co-cracking of HDO tall oil fractions with a typical fossil-based naphtha showed improved selectivity to desired light olefins, further demonstrating the potential of large scale olefin production from hydrotreated tall oil fractions in conventional crackers.",

keywords = "biomass, HDO, olefins, steam cracking, tall oil",

author = "Pyl, {Stephen P.} and Thomas Dijkmans and {Manjaly Anthonykutty}, Jinto and Marie-Fran{\c c}oise Reyniers and Ali Harlin and {van Geem}, {Kevin M.} and Marin, {Guy B.}",

year = "2012",

doi = "10.1016/j.biortech.2012.09.037",

language = "English",

volume = "126",

pages = "48--55",

journal = "Bioresource Technology",

issn = "0960-8524",

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TY - JOUR

T1 - Wood-derived olefins by steam cracking of hydrodeoxygenated tall oils

AU - Pyl, Stephen P.

AU - Dijkmans, Thomas

AU - Manjaly Anthonykutty, Jinto

AU - Reyniers, Marie-Françoise

AU - Harlin, Ali

AU - van Geem, Kevin M.

AU - Marin, Guy B.

PY - 2012

Y1 - 2012

N2 - Tall oil fractions obtained from Norwegian spruce pulping were hydrodeoxygenated (HDO) at pilot scale using a commercial NiMo hydrotreating catalyst. Comprehensive two dimensional gas chromatography (GC × GC) showed that HDO of both tall oil fatty acids (TOFA) and distilled tall oil (DTO) produced highly paraffinic hydrocarbon liquids. The hydrotreated fractions also contained fatty acid methyl esters and norabietane and norabietatriene isomers. Steam cracking of HDO–TOFA in a pilot plant revealed that high light olefin yields can be obtained, with 35.4 wt.% of ethene and 18.2 wt.% of propene at a coil outlet pressure (COP) of 1.7 bara, a dilution of 0.45 kgsteam/kgHDO–TOFA and a coil outlet temperature (COT) of 820 °C. A pilot plant coking experiment indicated that cracking of HDO–TOFA at a COT of 850 °C results in limited fouling in the reactor. Co-cracking of HDO tall oil fractions with a typical fossil-based naphtha showed improved selectivity to desired light olefins, further demonstrating the potential of large scale olefin production from hydrotreated tall oil fractions in conventional crackers.

AB - Tall oil fractions obtained from Norwegian spruce pulping were hydrodeoxygenated (HDO) at pilot scale using a commercial NiMo hydrotreating catalyst. Comprehensive two dimensional gas chromatography (GC × GC) showed that HDO of both tall oil fatty acids (TOFA) and distilled tall oil (DTO) produced highly paraffinic hydrocarbon liquids. The hydrotreated fractions also contained fatty acid methyl esters and norabietane and norabietatriene isomers. Steam cracking of HDO–TOFA in a pilot plant revealed that high light olefin yields can be obtained, with 35.4 wt.% of ethene and 18.2 wt.% of propene at a coil outlet pressure (COP) of 1.7 bara, a dilution of 0.45 kgsteam/kgHDO–TOFA and a coil outlet temperature (COT) of 820 °C. A pilot plant coking experiment indicated that cracking of HDO–TOFA at a COT of 850 °C results in limited fouling in the reactor. Co-cracking of HDO tall oil fractions with a typical fossil-based naphtha showed improved selectivity to desired light olefins, further demonstrating the potential of large scale olefin production from hydrotreated tall oil fractions in conventional crackers.

KW - biomass

KW - HDO

KW - olefins

KW - steam cracking

KW - tall oil

U2 - 10.1016/j.biortech.2012.09.037

DO - 10.1016/j.biortech.2012.09.037

M3 - Article

SN - 0960-8524

VL - 126

SP - 48

EP - 55

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Wood-derived olefins by steam cracking of hydrodeoxygenated tall oils

Abstract

Funding

Keywords

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