Effects of heterogeneous catalyst in hydrothermal liquefaction of dried distillers grains with solubles

Christensen, Per Runge; Mørup, Anders Juul; Mamakhel, Aref; Glasius, Marianne; Becker, Jacob; Iversen, Bo B.

doi:10.1016/j.fuel.2014.01.037

Cited by 46 publications

(18 citation statements)

References 32 publications

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“…It was found that Raney‐Ni and HZSM‐5 type zeolite catalysts had no significant effect on the presented hydrothermal liquefaction process. Christensen et al . performed the hydrothermal liquefaction of dried distiller's grains in the presence of a nanocrystalline zirconia catalyst and investigated the effect of catalyst on liquefaction yields.…”

Section: Resultsmentioning

confidence: 99%

Assessment of avocado seeds (Persea americana) to produce bio‐oil through supercritical liquefaction

Aysu

Durak

2015

Biofuels Bioprod Bioref

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Avocado (Persea americana) seeds were liquefi ed in supercritical ethanol and acetone with (KOH, ZnCl 2 ) and without catalyst at various temperatures (250, 270, and 290˚C) in an autoclave under high pressure for production of bio-oil. The effects of liquefaction parameters, such as type of solvent, temperature, and type of catalyst, on the liquefaction yields were studied. Acetone as solvent and zinc chloride as catalyst provide the optimum conditions for liquefaction. The results showed that the highest conversion (liquid+gaseous products) of 76.90 % was obtained in acetone at 290 ˚C with ZnCl 2 (10%). The produced bio-oils were analyzed and characterized by the methods including Elemental analysis, Fourier transform infrared spectroscopy (FT-IR) and Gas chromatography-mass spectrometry (GC-MS). One hundred seventy and 195 different compounds were identifi ed by GC-MS in the bio-oils obtained in acetone at 270 and 290 ˚C, respectively.

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Section: Resultsmentioning

confidence: 99%

Assessment of avocado seeds (Persea americana) to produce bio‐oil through supercritical liquefaction

Aysu

Durak

2015

Biofuels Bioprod Bioref

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“…There have been many studies in which effect of the catalyst on the quantity and specifications of the products obtained at the liquefaction and pyrolysis processes have been researched [57][58][59][60][61]. It has been seen that the catalyst used have much effect on the quantity and specifications of the products obtained.…”

Section: Effect Of the Catalyst On Product Yieldsmentioning

confidence: 99%

Thermochemical conversion of Phellinus pomaceus via supercritical fluid extraction and pyrolysis processes

Durak

2015

Energy Conversion and Management

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“…The functional group information of the sample was characterized by FT-IR spectroscopy using a Nicolet 380 FT-IR spectrophotometer (Thermo Fisher Scientific, USA). FT-IR spectra were obtained in the 4000 to 400 cm -1 region, with a total of 32 replicate scans and a resolution of 4 cm -1 using OMNIC software (Thermo Fisher Scientific, USA) (Christensen et al 2014;Lu et al 2013).…”

Section: Gc-ms Analysismentioning

confidence: 99%

Liquefaction of Fir Sawdust in Supercritical Ethanol with Dissolved Phosphotungstic Acid

ChangWei¹,

Zheng²,

Lv³

et al. 2015

BioResources

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An environmentally benign approach is put forward with the focus on directly liquefying and depolymerizing Cunninghamia lanceolata (Lamb.) Hook. (Chinese fir) sawdust into ethyl levulinate (EL) under supercritical ethanol (scEtOH) conditions by using phosphotungstic acid (PTA) as a catalyst. The effects of parameters such as catalyst dosage, temperature, and reaction time on alcoholysis yield were investigated. The experimental results show that the biomass alcoholysis yield reached 95.35% with 0.5 g PTA as a catalyst at 260 °C for 30 min. Alcoholysis yield and quantitative content of EL depended on the catalyst. The light bio-oil was primarily composed of phenols, aldehydes, ketones, and esters. A high quantitative content of EL up to 20.82% (AR, Relative abundance) was achieved, compared to 0.73% AR when PTA was not added. Hence, scEtOH with dissolved PTA may offer novel media for both chemical reactions and biomass conversion technology as a replacement for environmentally undesirable organic solvents.

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Effects of heterogeneous catalyst in hydrothermal liquefaction of dried distillers grains with solubles

Cited by 46 publications

References 32 publications

Assessment of avocado seeds (Persea americana) to produce bio‐oil through supercritical liquefaction

Assessment of avocado seeds (Persea americana) to produce bio‐oil through supercritical liquefaction

Thermochemical conversion of Phellinus pomaceus via supercritical fluid extraction and pyrolysis processes

Liquefaction of Fir Sawdust in Supercritical Ethanol with Dissolved Phosphotungstic Acid

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