Upgrading of 4-methylanisole in a catalytic reactor with electric discharges: A novel approach to O-removal from bio-oils

Taghvaei, Hamed; Hosseinzadeh, Mohammad Bagher; Rezazadeh, Shahin; Rahimpour, Mohammad Reza; Shariati, Alireza

doi:10.1016/j.cej.2015.06.058

Cited by 35 publications

(20 citation statements)

References 71 publications

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“…ions, electrons) . The effective collision (inelastic collisions) of active electrons the ionization of neutral gases, is partially ionized gas with the molecules of bio‐oil compounds could result in the cleavage of weaker bonds, such as C−O or C−H, resulting on the removal of oxygen atoms . Numerous parameters could affect the efficiency of deoxygenation performance including pulse repetition frequency (PRF), carrier gas flow rate, gas distance, remediation time, pin number and plate electrode diameter (PED) etc .…”

Section: Hydrodeoxygenation Suppressing External H2 Supplymentioning

confidence: 99%

“…Rahimpour and co‐workers did a series of experiments for upgrading of anisole and 4‐methyanisole by employing a dielectric barrier discharge (DBD) plasma or corona plasma reactor (Figure ) ,. For the upgrading of anisole over Al 2 O 3 supported catalyst in DBD plasma reactor the activities of the catalysts in terms of the conversion ratio could be followed the order: NiMo/Al 2 O 3 >Pt/Al 2 O 3 >CoMo/Al 2 O 3 >PtRe/Al 2 O 3 >Al 2 O 3 > plasma alone.…”

Section: Hydrodeoxygenation Suppressing External H2 Supplymentioning

confidence: 99%

“…In contrast, Pt−Re/Al 2 O 3 catalyst is effective for oxygen removal from 4‐methylanisole, with 47 % deoxygenation degree in catalytic pulsed DBD plasma reactor system . In a corona plasma reactor, the corona discharge is able to decompose methyl radical and produce hydrogen radical for the deoxygenation of reactant.…”

Section: Hydrodeoxygenation Suppressing External H2 Supplymentioning

confidence: 99%

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Catalytic Upgrading of Biomass Model Compounds: Novel Approaches and Lessons Learnt from Traditional Hydrodeoxygenation – a Review

et al. 2019

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Catalytic hydrodeoxygenation (HDO) is a fundamental process for bio-resources upgrading to produce transportation fuels or added value chemicals. The bottleneck of this technology to be implemented at commercial scale is its dependence on high pressure hydrogen, an expensive resource which utilization also poses safety concerns. In this scenario, the development of hydrogen-free alternatives to facilitate oxygen removal in biomass derived compounds is a major challenge for catalysis science but at the same time it could revolutionize biomass processing technologies. In this review we have analysed several novel approaches, including catalytic transfer hydrogenation (CTH), combined reforming and hydrodeoxygenation, metal hydrolysis and subsequent hydrodeoxygenation along with non-thermal plasma (NTP) to avoid the supply of external H 2 . The knowledge accumulated from traditional HDO sets the grounds for catalysts and processes development among the hydrogen alternatives. In this sense, mechanistic aspects for HDO and the proposed alternatives are carefully analysed in this work. Biomass model compounds are selected aiming to provide an in-depth description of the different processes and stablish solid correlations catalysts composition-catalytic performance which can be further extrapolated to more complex biomass feedstocks. Moreover, the current challenges and research trends of novel hydrodeoxygenation strategies are also presented aiming to spark inspiration among the broad community of scientists working towards a low carbon society where bio-resources will play a major role. Figure 1. Three basic phenylpropane monomers: (1) p-coumaryl alcohol; (2) coniferyl alcohol; (3) sinapyl alcohol.

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Section: Hydrodeoxygenation Suppressing External H2 Supplymentioning

confidence: 99%

Section: Hydrodeoxygenation Suppressing External H2 Supplymentioning

confidence: 99%

Section: Hydrodeoxygenation Suppressing External H2 Supplymentioning

confidence: 99%

See 1 more Smart Citation

Catalytic Upgrading of Biomass Model Compounds: Novel Approaches and Lessons Learnt from Traditional Hydrodeoxygenation – a Review

et al. 2019

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“…Nowadays, almost all major chemicals are produced by catalytic processes . Among them, heterogeneous catalysis is of great importance in the modern chemical industries.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of supported nanocatalysts via novel non‐thermal plasma methods and its application in catalytic processes

Taghvaei

Heravi

Rahimpour³

2017

Plasma Processes & Polymers

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Heterogeneous catalysis is of great importance in chemical industries. Hence, various approaches are studied to improve catalyst characteristics with the purpose of promoting catalytic reactions. Among them, non‐thermal plasma treatment has attracted more attention due to its low temperature operation, simplicity, and shorter processing time. An extensive review has been performed for better understanding of various aspects of this technique. Unanimously, it is reported that plasma method leads to higher conversion, lower temperature activity and better coke suppression. In light of the investigated literature, application of plasma seems to have potential of starting a revolution in chemical processes. However, it necessitates more works to promote this technology toward industrial application.

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“…1 The upgrading step is required since the produced bio-oil from ash pyrolysis contains a high oxygen content (10-45 wt%) compared to crude oil. [2][3][4][5] A high oxygen content hinders the miscibility of bio-oil with petroleum derived fuels. [6][7][8] Moreover, it reduces the heating value and increases the viscosity of bio-oil.…”

Section: Introductionmentioning

confidence: 99%

Catalytic hydrodeoxygenation of anisole over nickel supported on plasma treated alumina–silica mixed oxides

2017

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Upgrading of 4-methylanisole in a catalytic reactor with electric discharges: A novel approach to O-removal from bio-oils

Cited by 35 publications

References 71 publications

Catalytic Upgrading of Biomass Model Compounds: Novel Approaches and Lessons Learnt from Traditional Hydrodeoxygenation – a Review

Catalytic Upgrading of Biomass Model Compounds: Novel Approaches and Lessons Learnt from Traditional Hydrodeoxygenation – a Review

Synthesis of supported nanocatalysts via novel non‐thermal plasma methods and its application in catalytic processes

Catalytic hydrodeoxygenation of anisole over nickel supported on plasma treated alumina–silica mixed oxides

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