Abstract
| Original language | English |
|---|---|
| Pages (from-to) | 48-55 |
| Number of pages | 8 |
| Journal | Bioresource Technology |
| Volume | 126 |
| DOIs | |
| Publication status | Published - 2012 |
| MoE publication type | A1 Journal article-refereed |
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Keywords
- biomass
- HDO
- olefins
- steam cracking
- tall oil
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Wood-derived olefins by steam cracking of hydrodeoxygenated tall oils. / Pyl, S.P.; Dijkmans, T.; Manjaly Anthonykutty, Jinto; Reyniers, M.-F.; Harlin, Ali; Van Geem, K.M. (Corresponding Author); Marin, G.B.
In: Bioresource Technology, Vol. 126, 2012, p. 48-55.Research output: Contribution to journal › Article › Scientific › peer-review
TY - JOUR
T1 - Wood-derived olefins by steam cracking of hydrodeoxygenated tall oils
AU - Pyl, S.P.
AU - Dijkmans, T.
AU - Manjaly Anthonykutty, Jinto
AU - Reyniers, M.-F.
AU - Harlin, Ali
AU - Van Geem, K.M.
AU - Marin, G.B.
N1 - Project code: 82227
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
VL - 126
SP - 48
EP - 55
JO - Bioresource Technology
JF - Bioresource Technology
SN - 0960-8524
ER -