Catalytic flash pyrolysis of biomass: catalyst and process development for production of a fuel precursor

A. Ali Imran

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

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Abstract

Flash pyrolysis of biomass is a promising technology to produce pyrolysis-oil (bio-oil). However, the presently produced bio-oil is not suitable for direct use as a transportation fuel or as a fuel additive/precursor. The presence of oxygenated compounds in the bio-oil mainly contributes to its deleterious properties such as high viscosity, high acidity and resulting corrosiveness, instability upon storage, lower energy density than the conventional fuels by 50%, incompatibility and immiscibility with fossil fuels, thermal instability and tendency to polymerize under exposure of air. Catalytic de-oxygenation is considered as a first line option to overcome the problematic characteristics of the bio-oil. However, the challenge in de-oxygenation catalyst development is to design a catalyst that selectively removes the problematic oxygenates in the bio-oil and not the desired components. This thesis work aims to develop an efficient in-situ de-oxygenation catalyst to upgrade bio-oil into a high-quality fuel precursor. The second part of the thesis is focused on the catalytic flash pyrolysis of different triglycerides containing lignocellulosic feedstocks and triglycerides incorporated wood. The here applied online catalytic flash pyrolysis aims at the production of a hydrocarbons rich bio-oil that can be readily refined into transportation fuels using conventional technologies.
Original languageEnglish
QualificationDoctor of Philosophy
Awarding Institution
  • University of Twente
Supervisors/Advisors
  • Brem, Gerrit , Supervisor
Award date27 Jun 2019
Place of PublicationEnschede
Publisher
Print ISBNs978-90-365-4794-9
DOIs
Publication statusPublished - 27 Jun 2019

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Biomass
Pyrolysis
Catalysts
Oxygenation
Fuel additives
Oils
Fossil fuels
Acidity
Feedstocks
Wood
Solubility
Hydrocarbons
Viscosity
Air

Cite this

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title = "Catalytic flash pyrolysis of biomass: catalyst and process development for production of a fuel precursor",
abstract = "Flash pyrolysis of biomass is a promising technology to produce pyrolysis-oil (bio-oil). However, the presently produced bio-oil is not suitable for direct use as a transportation fuel or as a fuel additive/precursor. The presence of oxygenated compounds in the bio-oil mainly contributes to its deleterious properties such as high viscosity, high acidity and resulting corrosiveness, instability upon storage, lower energy density than the conventional fuels by 50{\%}, incompatibility and immiscibility with fossil fuels, thermal instability and tendency to polymerize under exposure of air. Catalytic de-oxygenation is considered as a first line option to overcome the problematic characteristics of the bio-oil. However, the challenge in de-oxygenation catalyst development is to design a catalyst that selectively removes the problematic oxygenates in the bio-oil and not the desired components. This thesis work aims to develop an efficient in-situ de-oxygenation catalyst to upgrade bio-oil into a high-quality fuel precursor. The second part of the thesis is focused on the catalytic flash pyrolysis of different triglycerides containing lignocellulosic feedstocks and triglycerides incorporated wood. The here applied online catalytic flash pyrolysis aims at the production of a hydrocarbons rich bio-oil that can be readily refined into transportation fuels using conventional technologies.",
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Catalytic flash pyrolysis of biomass : catalyst and process development for production of a fuel precursor. / Ali Imran, A.

Enschede : University of Twente, 2019. 142 p.

Research output: ThesisPhD Thesis - Research UT, graduation UTAcademic

TY - THES

T1 - Catalytic flash pyrolysis of biomass

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AB - Flash pyrolysis of biomass is a promising technology to produce pyrolysis-oil (bio-oil). However, the presently produced bio-oil is not suitable for direct use as a transportation fuel or as a fuel additive/precursor. The presence of oxygenated compounds in the bio-oil mainly contributes to its deleterious properties such as high viscosity, high acidity and resulting corrosiveness, instability upon storage, lower energy density than the conventional fuels by 50%, incompatibility and immiscibility with fossil fuels, thermal instability and tendency to polymerize under exposure of air. Catalytic de-oxygenation is considered as a first line option to overcome the problematic characteristics of the bio-oil. However, the challenge in de-oxygenation catalyst development is to design a catalyst that selectively removes the problematic oxygenates in the bio-oil and not the desired components. This thesis work aims to develop an efficient in-situ de-oxygenation catalyst to upgrade bio-oil into a high-quality fuel precursor. The second part of the thesis is focused on the catalytic flash pyrolysis of different triglycerides containing lignocellulosic feedstocks and triglycerides incorporated wood. The here applied online catalytic flash pyrolysis aims at the production of a hydrocarbons rich bio-oil that can be readily refined into transportation fuels using conventional technologies.

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M3 - PhD Thesis - Research UT, graduation UT

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