Comparative analysis of fast pyrolysis and hydrothermal liquefaction as routes for biomass conversion to liquid hydrocarbon fuels

D.C. Elliott, I. Tews, L. Snowden-Swan, Yrjö Solantausta, Kristin Onarheim

Research output: Contribution to conferenceOther conference contributionScientific

Abstract

Conversion of biomass to liquid fuels is a key opportunity for providing renewable sources to displace fossil energy and reduce carbon footprint. Fast pyrolysis of biomass can produce high yields of liquid product from solid lignocellulosic biomass. Subsequent upgrading of the bio-oil product is required prior to introduction of the biofuel into the existing commercial market. The use of catalytic hydroprocessing is an important way to produce infrastructure compatible fuels from bio-oil. Alternatively, hydrothermal liquefaction is a different pathway for direct liquefaction of biomass. Development of the technology and the required hydrotreating of the biocrude are underway in laboratories around the world. A third pathway is also under development wherein fast pyrolysis is accomplished in the presence of catalyst for modifying the bio-oil composition. The different properties of fast pyrolysis bio-oil, with and without catalyst present, and hydrothermal liquefaction biocrude require significantly different processing parameters for the hydrotreating to produce liquid hydrocarbon fuels. Process models have been developed for the three pathways, and equipment has been conceptually sized and costed. In this way the three pathways from biomass to infrastructure compatible fuels can be evaluated and compared. Topics with high impact to the processes operation and cost can be identified in order to guide research for process improvement.
Original languageEnglish
Number of pages25
Publication statusPublished - 2014
EventSymposium on Thermal and Catalytic Sciences for Biofuels and Biobased Products, TCS2014 - Denver, United States
Duration: 2 Sep 20145 Sep 2014

Conference

ConferenceSymposium on Thermal and Catalytic Sciences for Biofuels and Biobased Products, TCS2014
Abbreviated titleTCS2014
CountryUnited States
CityDenver
Period2/09/145/09/14

Fingerprint

Bioconversion
Liquefaction
Biomass
Pyrolysis
Hydrocarbons
Liquids
Carbon footprint
Catalysts
Liquid fuels
Biofuels
Oils
Processing
Chemical analysis
Costs

Cite this

Elliott, D. C., Tews, I., Snowden-Swan, L., Solantausta, Y., & Onarheim, K. (2014). Comparative analysis of fast pyrolysis and hydrothermal liquefaction as routes for biomass conversion to liquid hydrocarbon fuels. Symposium on Thermal and Catalytic Sciences for Biofuels and Biobased Products, TCS2014, Denver, United States.
Elliott, D.C. ; Tews, I. ; Snowden-Swan, L. ; Solantausta, Yrjö ; Onarheim, Kristin. / Comparative analysis of fast pyrolysis and hydrothermal liquefaction as routes for biomass conversion to liquid hydrocarbon fuels. Symposium on Thermal and Catalytic Sciences for Biofuels and Biobased Products, TCS2014, Denver, United States.25 p.
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Elliott, DC, Tews, I, Snowden-Swan, L, Solantausta, Y & Onarheim, K 2014, 'Comparative analysis of fast pyrolysis and hydrothermal liquefaction as routes for biomass conversion to liquid hydrocarbon fuels' Symposium on Thermal and Catalytic Sciences for Biofuels and Biobased Products, TCS2014, Denver, United States, 2/09/14 - 5/09/14, .

Comparative analysis of fast pyrolysis and hydrothermal liquefaction as routes for biomass conversion to liquid hydrocarbon fuels. / Elliott, D.C.; Tews, I.; Snowden-Swan, L.; Solantausta, Yrjö; Onarheim, Kristin.

2014. Symposium on Thermal and Catalytic Sciences for Biofuels and Biobased Products, TCS2014, Denver, United States.

Research output: Contribution to conferenceOther conference contributionScientific

TY - CONF

T1 - Comparative analysis of fast pyrolysis and hydrothermal liquefaction as routes for biomass conversion to liquid hydrocarbon fuels

AU - Elliott, D.C.

AU - Tews, I.

AU - Snowden-Swan, L.

AU - Solantausta, Yrjö

AU - Onarheim, Kristin

N1 - HUO: Oral presentation CA2: BA3123 CA2: BA3125 Project code: 77003

PY - 2014

Y1 - 2014

N2 - Conversion of biomass to liquid fuels is a key opportunity for providing renewable sources to displace fossil energy and reduce carbon footprint. Fast pyrolysis of biomass can produce high yields of liquid product from solid lignocellulosic biomass. Subsequent upgrading of the bio-oil product is required prior to introduction of the biofuel into the existing commercial market. The use of catalytic hydroprocessing is an important way to produce infrastructure compatible fuels from bio-oil. Alternatively, hydrothermal liquefaction is a different pathway for direct liquefaction of biomass. Development of the technology and the required hydrotreating of the biocrude are underway in laboratories around the world. A third pathway is also under development wherein fast pyrolysis is accomplished in the presence of catalyst for modifying the bio-oil composition. The different properties of fast pyrolysis bio-oil, with and without catalyst present, and hydrothermal liquefaction biocrude require significantly different processing parameters for the hydrotreating to produce liquid hydrocarbon fuels. Process models have been developed for the three pathways, and equipment has been conceptually sized and costed. In this way the three pathways from biomass to infrastructure compatible fuels can be evaluated and compared. Topics with high impact to the processes operation and cost can be identified in order to guide research for process improvement.

AB - Conversion of biomass to liquid fuels is a key opportunity for providing renewable sources to displace fossil energy and reduce carbon footprint. Fast pyrolysis of biomass can produce high yields of liquid product from solid lignocellulosic biomass. Subsequent upgrading of the bio-oil product is required prior to introduction of the biofuel into the existing commercial market. The use of catalytic hydroprocessing is an important way to produce infrastructure compatible fuels from bio-oil. Alternatively, hydrothermal liquefaction is a different pathway for direct liquefaction of biomass. Development of the technology and the required hydrotreating of the biocrude are underway in laboratories around the world. A third pathway is also under development wherein fast pyrolysis is accomplished in the presence of catalyst for modifying the bio-oil composition. The different properties of fast pyrolysis bio-oil, with and without catalyst present, and hydrothermal liquefaction biocrude require significantly different processing parameters for the hydrotreating to produce liquid hydrocarbon fuels. Process models have been developed for the three pathways, and equipment has been conceptually sized and costed. In this way the three pathways from biomass to infrastructure compatible fuels can be evaluated and compared. Topics with high impact to the processes operation and cost can be identified in order to guide research for process improvement.

M3 - Other conference contribution

ER -

Elliott DC, Tews I, Snowden-Swan L, Solantausta Y, Onarheim K. Comparative analysis of fast pyrolysis and hydrothermal liquefaction as routes for biomass conversion to liquid hydrocarbon fuels. 2014. Symposium on Thermal and Catalytic Sciences for Biofuels and Biobased Products, TCS2014, Denver, United States.