Upgrading of crude algal bio-oil in supercritical water

Peigao Duan; Phillip E. Savage

doi:10.1016/j.biortech.2010.08.013

Upgrading of crude algal bio-oil in supercritical water

Peigao Duan
, Phillip E. Savage

Chemical Engineering

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

287 Scopus citations

Abstract

We determined the influence of a Pt/C catalyst, high-pressure H₂, and pH on the upgrading of a crude algal bio-oil in supercritical water (SCW). The SCW treatment led to a product oil with a higher heating value (∼42MJ/kg) and lower acid number than the crude bio-oil. The product oil was also lower in O and N and essentially free of sulfur. Including the Pt/C catalyst in the reactor led to a freely flowing liquid product oil with a high abundance of hydrocarbons. Overall, many of the properties of the upgraded oil obtained from catalytic treatment in SCW are similar to those of hydrocarbon fuels derived from fossil fuel resources. Thus, this work shows that the crude bio-oil from hydrothermal liquefaction of a microalga can be effectively upgraded in supercritical water in the presence of a Pt/C catalyst.

Original language	English (US)
Pages (from-to)	1899-1906
Number of pages	8
Journal	Bioresource technology
Volume	102
Issue number	2
DOIs	https://doi.org/10.1016/j.biortech.2010.08.013
State	Published - Jan 2011

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 7 Affordable and Clean Energy

All Science Journal Classification (ASJC) codes

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

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10.1016/j.biortech.2010.08.013

Cite this

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title = "Upgrading of crude algal bio-oil in supercritical water",

abstract = "We determined the influence of a Pt/C catalyst, high-pressure H2, and pH on the upgrading of a crude algal bio-oil in supercritical water (SCW). The SCW treatment led to a product oil with a higher heating value (∼42MJ/kg) and lower acid number than the crude bio-oil. The product oil was also lower in O and N and essentially free of sulfur. Including the Pt/C catalyst in the reactor led to a freely flowing liquid product oil with a high abundance of hydrocarbons. Overall, many of the properties of the upgraded oil obtained from catalytic treatment in SCW are similar to those of hydrocarbon fuels derived from fossil fuel resources. Thus, this work shows that the crude bio-oil from hydrothermal liquefaction of a microalga can be effectively upgraded in supercritical water in the presence of a Pt/C catalyst.",

author = "Peigao Duan and Savage, \{Phillip E.\}",

note = "Funding Information: We gratefully acknowledge financial support from the University of Michigan College of Engineering and from the US National Science Foundation ( CBET-0755617 , EFRI-0937992 ). ",

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doi = "10.1016/j.biortech.2010.08.013",

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AU - Duan, Peigao

AU - Savage, Phillip E.

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AB - We determined the influence of a Pt/C catalyst, high-pressure H2, and pH on the upgrading of a crude algal bio-oil in supercritical water (SCW). The SCW treatment led to a product oil with a higher heating value (∼42MJ/kg) and lower acid number than the crude bio-oil. The product oil was also lower in O and N and essentially free of sulfur. Including the Pt/C catalyst in the reactor led to a freely flowing liquid product oil with a high abundance of hydrocarbons. Overall, many of the properties of the upgraded oil obtained from catalytic treatment in SCW are similar to those of hydrocarbon fuels derived from fossil fuel resources. Thus, this work shows that the crude bio-oil from hydrothermal liquefaction of a microalga can be effectively upgraded in supercritical water in the presence of a Pt/C catalyst.

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Upgrading of crude algal bio-oil in supercritical water

Abstract

UN SDGs

All Science Journal Classification (ASJC) codes

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