Performance of Liquids from Slow Pyrolysis and Hydrothermal Carbonization in Plant Protection

Marleena Hagner, Kari Tiilikkala, Isa Lindqvist, Klaus Niemelä, Hanne Wikberg, Anssi Källi, Kimmo Rasa

Research output: Contribution to journalArticleScientificpeer-review

1 Citation (Scopus)

Abstract

The feasibility of thermochemical biomass conversion technologies can be improved if value-added applications for all fractions can be developed. One of such approaches is the use of liquid by-products from slow pyrolysis and hydrothermal carbonization (HTC) in plant protection. Liquids produced from slow pyrolysis of pine bark, pine forest residues, wheat straw, and willow, and from hydrothermal carbonization of willow, were analyzed in this study. In particular, potential active compounds were analyzed, covering the main volatile, simple organic compounds and numerous phenolic substances. Effectivity tests of the liquids as pest repellent (Arianta arbustorum), herbicide (Brassica rapa), and insecticide (Rhopalosiphum padi) indicated that slow pyrolysis liquid from willow was the most effective pesticide, followed by the liquid from wheat, bark, and forest residues. HTC liquid did not show any pesticidal activity due to low concentration of organic compounds. High content of acetic acid and other carboxylic acids, and the presence of dozens of different phenolic compounds seem to be the main reason for the higher pesticidal activity of willow-derived pyrolysis liquid. Temperature-separated slow pyrolysis liquids proved to be suitable to be used as pesticides. Consequently there is possibility to improve the feasibility of thermochemical biomass conversion technologies remarkably by developing the liquid factions to value-added pesticides. Graphical Abstract: [Figure not available: see fulltext.].
Original languageEnglish
Pages (from-to)1-12
JournalWaste and Biomass Valorization
DOIs
Publication statusE-pub ahead of print - 19 Dec 2018
MoE publication typeNot Eligible

Fingerprint

Carbonization
pyrolysis
Pyrolysis
liquid
Liquids
Pesticides
pesticide
Organic compounds
bark
Biomass
wheat
plant protection
Insecticides
Herbicides
biomass
Straw
phenolic compound
carboxylic acid
Carboxylic acids
Acetic acid

Keywords

  • Hydrothermal carbonization
  • Pine
  • Plant protection
  • Pyrolysis liquids
  • Slow pyrolysis
  • Wheat straw
  • Willow

Cite this

Hagner, Marleena ; Tiilikkala, Kari ; Lindqvist, Isa ; Niemelä, Klaus ; Wikberg, Hanne ; Källi, Anssi ; Rasa, Kimmo. / Performance of Liquids from Slow Pyrolysis and Hydrothermal Carbonization in Plant Protection. In: Waste and Biomass Valorization. 2018 ; pp. 1-12.
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Performance of Liquids from Slow Pyrolysis and Hydrothermal Carbonization in Plant Protection. / Hagner, Marleena; Tiilikkala, Kari; Lindqvist, Isa; Niemelä, Klaus; Wikberg, Hanne; Källi, Anssi; Rasa, Kimmo.

In: Waste and Biomass Valorization, 19.12.2018, p. 1-12.

Research output: Contribution to journalArticleScientificpeer-review

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