The effect of hydrothermal liquefaction of black liquor in bio-oil quality

Kristian Melin (Corresponding author), Alexi Välimäki, Anja Oasmaa, Juha Lehtonen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

Abstract

This work addresses optimization of the hydrothermal liquefaction (HTL) black liquors originating from Kraft pulp mills using glycerol as a hydrogen donor, and sodium hydroxide as alkali at different reaction temperatures employing different dry solids contents of black liquors. The aim was to find optimal conditions for producing high-quality bio-oil. The desired HTL product properties were: the product is a fluid at room temperature, high heating value (HHV), low oxygen content, low molecular weight, as well as low sodium and ash content. The impact of wheat straw lignin addition to black liquor was also studied. The best bio-oil quality was obtained at the conditions of black liquor dry solids of 34 wt.-%, 12 wt.-% of sodium hydroxide, glycerol 59 wt.-% and temperature 360 °C.
Original languageEnglish
Title of host publicationEuropean Biomass Conference and Exhibition Proceedings
PublisherETA-Florence Renewable Energies
Pages1144-1145
Number of pages2
Publication statusPublished - May 2019
MoE publication typeA4 Article in a conference publication
Event27th European Biomass Conference and Exhibition, EUBCE 2019: EUBCE 2019 - Lisbon, Portugal
Duration: 27 May 201930 May 2019

Conference

Conference27th European Biomass Conference and Exhibition, EUBCE 2019
CountryPortugal
CityLisbon
Period27/05/1930/05/19

Fingerprint

waste liquors
Liquefaction
liquefaction
Sodium
sodium
Ashes
Glycerol
oils
hydroxide
oil
sodium hydroxide
glycerol
Kraft pulp
Paper and pulp mills
Straw
Lignin
kraft pulp
Temperature
straw
lignin

Keywords

  • Biofuel
  • Liquefaction
  • Liquid biofuel
  • Paper production
  • Quality
  • Thermochemical conversion

Cite this

Melin, K., Välimäki, A., Oasmaa, A., & Lehtonen, J. (2019). The effect of hydrothermal liquefaction of black liquor in bio-oil quality. In European Biomass Conference and Exhibition Proceedings (pp. 1144-1145). ETA-Florence Renewable Energies. European Biomass Conference and Exhibition Proceedings
Melin, Kristian ; Välimäki, Alexi ; Oasmaa, Anja ; Lehtonen, Juha. / The effect of hydrothermal liquefaction of black liquor in bio-oil quality. European Biomass Conference and Exhibition Proceedings. ETA-Florence Renewable Energies, 2019. pp. 1144-1145 (European Biomass Conference and Exhibition Proceedings).
@inproceedings{e6e6bae22595428badb23555aa0dc3d5,
title = "The effect of hydrothermal liquefaction of black liquor in bio-oil quality",
abstract = "This work addresses optimization of the hydrothermal liquefaction (HTL) black liquors originating from Kraft pulp mills using glycerol as a hydrogen donor, and sodium hydroxide as alkali at different reaction temperatures employing different dry solids contents of black liquors. The aim was to find optimal conditions for producing high-quality bio-oil. The desired HTL product properties were: the product is a fluid at room temperature, high heating value (HHV), low oxygen content, low molecular weight, as well as low sodium and ash content. The impact of wheat straw lignin addition to black liquor was also studied. The best bio-oil quality was obtained at the conditions of black liquor dry solids of 34 wt.-{\%}, 12 wt.-{\%} of sodium hydroxide, glycerol 59 wt.-{\%} and temperature 360 °C.",
keywords = "Biofuel, Liquefaction, Liquid biofuel, Paper production, Quality, Thermochemical conversion",
author = "Kristian Melin and Alexi V{\"a}lim{\"a}ki and Anja Oasmaa and Juha Lehtonen",
year = "2019",
month = "5",
language = "English",
pages = "1144--1145",
booktitle = "European Biomass Conference and Exhibition Proceedings",
publisher = "ETA-Florence Renewable Energies",
address = "Italy",

}

Melin, K, Välimäki, A, Oasmaa, A & Lehtonen, J 2019, The effect of hydrothermal liquefaction of black liquor in bio-oil quality. in European Biomass Conference and Exhibition Proceedings. ETA-Florence Renewable Energies, European Biomass Conference and Exhibition Proceedings, pp. 1144-1145, 27th European Biomass Conference and Exhibition, EUBCE 2019, Lisbon, Portugal, 27/05/19.

The effect of hydrothermal liquefaction of black liquor in bio-oil quality. / Melin, Kristian (Corresponding author); Välimäki, Alexi; Oasmaa, Anja; Lehtonen, Juha.

European Biomass Conference and Exhibition Proceedings. ETA-Florence Renewable Energies, 2019. p. 1144-1145 (European Biomass Conference and Exhibition Proceedings).

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review

TY - GEN

T1 - The effect of hydrothermal liquefaction of black liquor in bio-oil quality

AU - Melin, Kristian

AU - Välimäki, Alexi

AU - Oasmaa, Anja

AU - Lehtonen, Juha

PY - 2019/5

Y1 - 2019/5

N2 - This work addresses optimization of the hydrothermal liquefaction (HTL) black liquors originating from Kraft pulp mills using glycerol as a hydrogen donor, and sodium hydroxide as alkali at different reaction temperatures employing different dry solids contents of black liquors. The aim was to find optimal conditions for producing high-quality bio-oil. The desired HTL product properties were: the product is a fluid at room temperature, high heating value (HHV), low oxygen content, low molecular weight, as well as low sodium and ash content. The impact of wheat straw lignin addition to black liquor was also studied. The best bio-oil quality was obtained at the conditions of black liquor dry solids of 34 wt.-%, 12 wt.-% of sodium hydroxide, glycerol 59 wt.-% and temperature 360 °C.

AB - This work addresses optimization of the hydrothermal liquefaction (HTL) black liquors originating from Kraft pulp mills using glycerol as a hydrogen donor, and sodium hydroxide as alkali at different reaction temperatures employing different dry solids contents of black liquors. The aim was to find optimal conditions for producing high-quality bio-oil. The desired HTL product properties were: the product is a fluid at room temperature, high heating value (HHV), low oxygen content, low molecular weight, as well as low sodium and ash content. The impact of wheat straw lignin addition to black liquor was also studied. The best bio-oil quality was obtained at the conditions of black liquor dry solids of 34 wt.-%, 12 wt.-% of sodium hydroxide, glycerol 59 wt.-% and temperature 360 °C.

KW - Biofuel

KW - Liquefaction

KW - Liquid biofuel

KW - Paper production

KW - Quality

KW - Thermochemical conversion

UR - http://www.scopus.com/inward/record.url?scp=85071065286&partnerID=8YFLogxK

M3 - Conference article in proceedings

SP - 1144

EP - 1145

BT - European Biomass Conference and Exhibition Proceedings

PB - ETA-Florence Renewable Energies

ER -

Melin K, Välimäki A, Oasmaa A, Lehtonen J. The effect of hydrothermal liquefaction of black liquor in bio-oil quality. In European Biomass Conference and Exhibition Proceedings. ETA-Florence Renewable Energies. 2019. p. 1144-1145. (European Biomass Conference and Exhibition Proceedings).