High-throughput continuous hydrodeoxygenation of liquid phase pyrolysis oil

Treusch, Klara; Schwaiger, Nikolaus; Schlackl, Klaus; Nagl, Roland; Rollett, Alexandra; Schadler, Michael; Hammerschlag, B.; Außerleitner, Julia; Huber, A.; Pucher, Peter; Siebenhofer, Matthäus

doi:10.1039/c8re00016f

Cited by 9 publications

(11 citation statements)

References 35 publications

(31 reference statements)

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“…Coke deposition has a huge impact on product quality, as less catalyst surface is available if plugs are formed. A decreasing product quality was observed for all experiments with LPP oil, 51,52 whereas the rate is different. In Fig.…”

Section: Catalyst Deactivationmentioning

confidence: 79%

“…Assuming, that no carbon is transferred from gas to liquid phase, the carbon yield of the hydrocarbon product phase with respect to LPP oil amounts 44 w%, which is in the range of LPP oil HDO with hydrogen. 51,52 Properties of the HDO fuel fraction…”

Section: Hydrodeoxygenation Of Lpp Oil Results and Discussionmentioning

confidence: 99%

“…The influence of the LHSV on HDO performance between 0.5 to 3 h −1 was investigated. 51 The highest HDO rate was achieved at LHSV 0.5 and 1 h −1 with an oxygen content of nearly 0 w% and a H/C ratio of nearly 2. The influence of the temperature was studied in the range of 350 to 400°C.…”

Section: Hydrodeoxygenation Of Pyrolysis Oilmentioning

confidence: 89%

“…It was shown, that during HDO of LPP oil methane and CO 2 , as well as CO and ethylene, ethane, propane and butane, are produced. 51 The additional methane and CO 2 production, which was observed, is attributed to HDO side reactions. This means, that no methane was produced by hydrogenation of CO, thus the Sabatier reaction can be excluded.…”

Section: Water-gas Shift Reactionmentioning

confidence: 94%

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Hydrocarbon production by continuous hydrodeoxygenation of liquid phase pyrolysis oil with biogenous hydrogen rich synthesis gas

et al. 2019

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Section: Catalyst Deactivationmentioning

confidence: 79%

Section: Hydrodeoxygenation Of Lpp Oil Results and Discussionmentioning

confidence: 99%

Section: Hydrodeoxygenation Of Pyrolysis Oilmentioning

confidence: 89%

Section: Water-gas Shift Reactionmentioning

confidence: 94%

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Hydrocarbon production by continuous hydrodeoxygenation of liquid phase pyrolysis oil with biogenous hydrogen rich synthesis gas

et al. 2019

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“…This can be caused by coke formation, another potential reason might be sulfur depletion during HDO. Ongoing tests indicate a more stable operation if 1000 ppm of sulfur are added to LPP oil (Treusch et al, 2018 ).…”

Section: Discussionmentioning

confidence: 99%

Temperature Dependence of Single Step Hydrodeoxygenation of Liquid Phase Pyrolysis Oil

et al. 2018

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In this paper, continuous hydrodeoxygenation (HDO) of liquid phase pyrolysis (LPP) oil in lab-scale is discussed. Pyrolysis oil is derived from the bioCRACK pilot plant from BDI - BioEnergy International GmbH at the OMV refinery in Vienna/Schwechat. Three hydrodeoxygenation temperature set points at 350, 375, and 400°C were investigated. Liquid hourly space velocity (LHSV) was 0.5 h−1. Hydrodeoxygenation was performed with an in situ sulfided metal oxide catalyst. During HDO, three product phases were collected. A gaseous phase, an aqueous phase and a hydrocarbon phase. Experiment duration was 36 h at 350 and 375°C and 27.5 h at 400°C in steady state operation mode. Water content of the hydrocarbon phase was reduced to below 0.05 wt.%. The water content of the aqueous phase was between 96.9 and 99.9 wt.%, indicating effective hydrodeoxygenation. The most promising results, concerning the rate of hydrodeoxygenation, were achieved at 400°C. After 36/27.5 h of experiment, catalyst deactivation was observed.

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Acid Extraction from Liquid Phase Pyrolysis Oil Using Cyanex®923 and Subsequent Solvent Regeneration

Painer

Treusch

Schwaiger

et al. 2019

Chemie Ingenieur Technik

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Liquid phase pyrolysis (LPP) oil, an intermediate from biofuel production using second‐generation biomass, is a promising source of biobased platform chemicals like acetic acid, however, displaying a complex, multicomponent mixture. Reactive extraction with Cyanex®923 was investigated for selective recovery of acids and subsequent solvent regeneration in distillation at 200 mbar. In a three‐stage extraction 81 % of acids were removed from the LPP oil without loss of Cyanex®923 to the raffinate. Solvent regeneration efficiency of acids was up to 99.7 % with mainly acids and water in the distillate.

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High-throughput continuous hydrodeoxygenation of liquid phase pyrolysis oil

Abstract: Liquid phase pyrolysis oil was successfully hydrodeoxygenated in continuous operation at liquid hourly space velocities of up to 3 h−1.

Cited by 9 publications

References 35 publications

Hydrocarbon production by continuous hydrodeoxygenation of liquid phase pyrolysis oil with biogenous hydrogen rich synthesis gas

Hydrocarbon production by continuous hydrodeoxygenation of liquid phase pyrolysis oil with biogenous hydrogen rich synthesis gas

Temperature Dependence of Single Step Hydrodeoxygenation of Liquid Phase Pyrolysis Oil

Acid Extraction from Liquid Phase Pyrolysis Oil Using Cyanex®923 and Subsequent Solvent Regeneration

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