Pyrolysis oil upgrading by high pressure thermal treatment

Mercader, Ferran de Miguel; Groeneveld, M.J.; Kersten, Sascha R.A.; Venderbosch, R. H.; Hogendoorn, J.A.

doi:10.1016/j.fuel.2010.01.026

Cited by 93 publications

(57 citation statements)

References 18 publications

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“…4) Optimization of operation process such as coupling noncatalytic high pressure thermal treatment process [176] with multi-step [171] HDO for real pyrolysis bio-oils.…”

Section: Active Phases Other Than Comos and Nimosmentioning

confidence: 99%

Hydrodeoxygenation of model compounds and catalytic systems for pyrolysis bio-oils upgrading

Wang

2012

Catalysis for Sustainable Energy

119

147

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“…4) Optimization of operation process such as coupling noncatalytic high pressure thermal treatment process [176] with multi-step [171] HDO for real pyrolysis bio-oils.…”

Section: Active Phases Other Than Comos and Nimosmentioning

confidence: 99%

Hydrodeoxygenation of model compounds and catalytic systems for pyrolysis bio-oils upgrading

Wang

2012

Catalysis for Sustainable Energy

119

147

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“…As such, there is an incentive to upgrade PLs and particularly to reduce acidity and to increase the storage stability to broaden the application range. Examples of such upgrading processes are catalytic hydrotreatments [8][9][10], high-pressure thermal treatments (HPTT) [11], and cracking using zeolites [12].…”

Section: Introductionmentioning

confidence: 99%

Mono-, bi-, and tri-metallic Ni-based catalysts for the catalytic hydrotreatment of pyrolysis liquids

Wang

Venderbosch

et al. 2017

Biomass Conv. Bioref.

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Catalytic hydrotreatment is a promising technology to convert pyrolysis liquids into intermediates with improved properties. Here, we report a catalyst screening study on the catalytic hydrotreatment of pyrolysis liquids using bi-and tri-metallic nickel-based catalysts in a batch autoclave (initial hydrogen pressure of 140 bar, 350°C, 4 h). The catalysts are characterized by a high nickel metal loading (41 to 57 wt%), promoted by Cu, Pd, Mo, and/or combination thereof, in a SiO 2 , SiO 2 -ZrO 2 , or SiO 2 -Al 2 O 3 matrix. The hydrotreatment results were compared with a benchmark Ru/C catalyst. The results revealed that the monometallic Ni catalyst is the least active and that particularly the use of Mo as the promoter is favored when considering activity and product properties. For Mo promotion, a product oil with improved properties viz. the highest H/C molar ratio and the lowest coking tendency was obtained. A drawback when using Mo as the promoter is the relatively high methane yield, which is close to that for Ru/C. 1 H, 13 C-NMR, heteronuclear single quantum coherence (HSQC), and two-dimensional gas chromatography (GC × GC) of the product oils reveal that representative component classes of the sugar fraction of pyrolysis liquids like carbonyl compounds (aldehydes and ketones and carbohydrates) are converted to a large extent. The pyrolytic lignin fraction is less reactive, though some degree of hydrocracking is observed.

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“…An important technique to analyze pyrolysis oil is size exclusion chromatography (SEC), also known as gel permeation chromatography (GPC). With this technique an indication of the molecular mass distribution of a sample can be obtained [20][21][22][23].…”

Section: Secmentioning

confidence: 99%