Hydrothermal liquefaction of Cyanidioschyzon merolae and the influence of catalysts on products

Tapaswy Muppaneni; Harvind K. Reddy; Thinesh Selvaratnam; Kodanda Phani Raj Dandamudi; Barry Dungan; Nagamany Nirmalakhandan; Tanner Schaub; F. Omar Holguin; Wayne Voorhies; Peter Lammers; Shuguang Deng

doi:10.1016/j.biortech.2016.10.022

Hydrothermal liquefaction of Cyanidioschyzon merolae and the influence of catalysts on products

Tapaswy Muppaneni, Harvind K. Reddy, Thinesh Selvaratnam, Kodanda Phani Raj Dandamudi, Barry Dungan, Nagamany Nirmalakhandan, Tanner Schaub, F. Omar Holguin, Wayne Voorhies, Peter Lammers, Shuguang Deng

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

92 Scopus citations

Abstract

This work investigates the hydrothermal liquefaction (HTL) of Cyanidioschyzon merolae algal species under various reaction temperatures and catalysts. Liquefaction of microalgae was performed with 10% solid loading for 30 min at temperatures of 180–300 °C to study the influences of two base and two acid catalysts on HTL product fractions. Maximum biocrude oil yield of 16.98% was obtained at 300 °C with no catalyst. The biocrude oil yield increased to 22.67% when KOH was introduced into the reaction mixture as a catalyst. The algal biocrude and biochar has a higher heating values (HHV) of 32.22 MJ kg⁻¹ and 20.78 MJ kg⁻¹ respectively when no catalyst was used. Gas chromatography time of flight mass spectrometry (GC/TOFMS) was employed to analyze the biocrude oil composition, and elemental analysis was performed on the algae, biocrude and biochar samples. Analysis of the HTL aqueous phase revealed the presence of valuable products.

Original language	English (US)
Pages (from-to)	91-97
Number of pages	7
Journal	Bioresource Technology
Volume	223
DOIs	https://doi.org/10.1016/j.biortech.2016.10.022
State	Published - Jan 1 2017

Keywords

Algae biocrude
Catalyst
Catalytic hydrothermal liquefaction
Elemental analysis

ASJC Scopus subject areas

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

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10.1016/j.biortech.2016.10.022

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title = "Hydrothermal liquefaction of Cyanidioschyzon merolae and the influence of catalysts on products",

abstract = "This work investigates the hydrothermal liquefaction (HTL) of Cyanidioschyzon merolae algal species under various reaction temperatures and catalysts. Liquefaction of microalgae was performed with 10% solid loading for 30 min at temperatures of 180–300 °C to study the influences of two base and two acid catalysts on HTL product fractions. Maximum biocrude oil yield of 16.98% was obtained at 300 °C with no catalyst. The biocrude oil yield increased to 22.67% when KOH was introduced into the reaction mixture as a catalyst. The algal biocrude and biochar has a higher heating values (HHV) of 32.22 MJ kg−1 and 20.78 MJ kg−1 respectively when no catalyst was used. Gas chromatography time of flight mass spectrometry (GC/TOFMS) was employed to analyze the biocrude oil composition, and elemental analysis was performed on the algae, biocrude and biochar samples. Analysis of the HTL aqueous phase revealed the presence of valuable products.",

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author = "Tapaswy Muppaneni and Reddy, {Harvind K.} and Thinesh Selvaratnam and Dandamudi, {Kodanda Phani Raj} and Barry Dungan and Nagamany Nirmalakhandan and Tanner Schaub and {Omar Holguin}, F. and Wayne Voorhies and Peter Lammers and Shuguang Deng",

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AU - Muppaneni, Tapaswy

AU - Reddy, Harvind K.

AU - Selvaratnam, Thinesh

AU - Dandamudi, Kodanda Phani Raj

AU - Dungan, Barry

AU - Nirmalakhandan, Nagamany

AU - Schaub, Tanner

AU - Omar Holguin, F.

AU - Voorhies, Wayne

AU - Lammers, Peter

AU - Deng, Shuguang

PY - 2017/1/1

Y1 - 2017/1/1

N2 - This work investigates the hydrothermal liquefaction (HTL) of Cyanidioschyzon merolae algal species under various reaction temperatures and catalysts. Liquefaction of microalgae was performed with 10% solid loading for 30 min at temperatures of 180–300 °C to study the influences of two base and two acid catalysts on HTL product fractions. Maximum biocrude oil yield of 16.98% was obtained at 300 °C with no catalyst. The biocrude oil yield increased to 22.67% when KOH was introduced into the reaction mixture as a catalyst. The algal biocrude and biochar has a higher heating values (HHV) of 32.22 MJ kg−1 and 20.78 MJ kg−1 respectively when no catalyst was used. Gas chromatography time of flight mass spectrometry (GC/TOFMS) was employed to analyze the biocrude oil composition, and elemental analysis was performed on the algae, biocrude and biochar samples. Analysis of the HTL aqueous phase revealed the presence of valuable products.

AB - This work investigates the hydrothermal liquefaction (HTL) of Cyanidioschyzon merolae algal species under various reaction temperatures and catalysts. Liquefaction of microalgae was performed with 10% solid loading for 30 min at temperatures of 180–300 °C to study the influences of two base and two acid catalysts on HTL product fractions. Maximum biocrude oil yield of 16.98% was obtained at 300 °C with no catalyst. The biocrude oil yield increased to 22.67% when KOH was introduced into the reaction mixture as a catalyst. The algal biocrude and biochar has a higher heating values (HHV) of 32.22 MJ kg−1 and 20.78 MJ kg−1 respectively when no catalyst was used. Gas chromatography time of flight mass spectrometry (GC/TOFMS) was employed to analyze the biocrude oil composition, and elemental analysis was performed on the algae, biocrude and biochar samples. Analysis of the HTL aqueous phase revealed the presence of valuable products.

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KW - Catalyst

KW - Catalytic hydrothermal liquefaction

KW - Elemental analysis

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Hydrothermal liquefaction of Cyanidioschyzon merolae and the influence of catalysts on products

Abstract

Keywords

ASJC Scopus subject areas

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