Co-liquefaction of mixed culture microalgal strains under sub-critical water conditions

Kodanda Phani Raj Dandamudi, Tapaswy Muppaneni, Nilusha Sudasinghe, Tanner Schaub, F. Omar Holguin, Peter Lammers, Shuguang Deng

Research output: Contribution to journalArticle

14 Citations (Scopus)

Abstract

We report the co-liquefaction performance of unicellular, red alga Cyanidioschyzon merolae and Galdieria sulphuraria under sub-critical water conditions within a stainless-steel batch reactor under different temperatures (150–300 °C), residence time (15–60 min), and Cyanidioschyzon merolae to Galdieria sulphuraria mass loading (0–100%). Individual liquefaction of C. merolae and G. sulphuraria at 300 °C achieved maximum biocrude oil yield of 18.9 and 14.0%, respectively. The yield of biocrude oil increased to 25.5%, suggesting a positive synergistic effect during the co-liquefaction of 80–20 mass loading of C. merolae to G. sulphuraria. The biocrude oils were analyzed by FT-ICR MS which showed that co-liquefaction did not significantly affect the distribution of product compounds compared to individual oils. The co-liquefied biocrude and biochar have a higher-heating-value of 35.28 and 7.96 MJ/kg. Ultimate and proximate analysis were performed on algae biomass, biocrude and biochar.

Original languageEnglish (US)
Pages (from-to)129-137
Number of pages9
JournalBioresource Technology
Volume236
DOIs
StatePublished - Jul 1 2017

Fingerprint

Liquefaction
liquefaction
Oils
Water
oil
Algae
water
Stainless Steel
Batch reactors
red alga
residence time
Biomass
Stainless steel
steel
alga
heating
Heating
biomass
temperature
Temperature

Keywords

  • Co-liquefaction
  • FT-ICR MS
  • Hydrothermal liquefaction
  • Microalgae
  • Synergistic effect

ASJC Scopus subject areas

  • Bioengineering
  • Environmental Engineering
  • Waste Management and Disposal

Cite this

Co-liquefaction of mixed culture microalgal strains under sub-critical water conditions. / Dandamudi, Kodanda Phani Raj; Muppaneni, Tapaswy; Sudasinghe, Nilusha; Schaub, Tanner; Holguin, F. Omar; Lammers, Peter; Deng, Shuguang.

In: Bioresource Technology, Vol. 236, 01.07.2017, p. 129-137.

Research output: Contribution to journalArticle

Dandamudi, Kodanda Phani Raj ; Muppaneni, Tapaswy ; Sudasinghe, Nilusha ; Schaub, Tanner ; Holguin, F. Omar ; Lammers, Peter ; Deng, Shuguang. / Co-liquefaction of mixed culture microalgal strains under sub-critical water conditions. In: Bioresource Technology. 2017 ; Vol. 236. pp. 129-137.
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