Upgrading of a Petroleum Residue. Kinetics of Conradson Carbon Residue Conversion

Trasobares, Susana; Callejas, María A.; Benito, Ana M.; Martínez, María Teresa; Severin, D.; Brouwer, L.

doi:10.1021/ie980285c

Cited by 18 publications

(4 citation statements)

References 16 publications

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“…Due to this, reactions like reduction and hydrodeoxygenation are favored . Besides, the rate of coke formation is lowered at high pressure and the catalyst retains its activated form ,…”

Section: Resultsmentioning

confidence: 99%

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Catalytic Hydrotreatment of Jatropha Oil over Lanthanum Hydroxide Supported Noble Metals: Effect of Promotion with Cerium

Patil

Vaidya

2017

ChemistrySelect

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Catalytic hydrotreatment of jatropha oil is an attractive option for the production of diesel‐range hydrocarbons. Here, we synthesized and tested the performance of two novel La(OH)3 supported Pd and Ru catalysts promoted with Ce, viz. Pd−Ce/La(OH)3 and Ru−Ce/La(OH)3 (hereafter referred to as Pd−Ce and Ru−Ce). The deoxygenation of jatropha oil was performed in a fixed‐bed reactor. The reaction conditions were varied so: temperature 603 to 663 K, weight hourly space velocity (WHSV) 1 to 4 h−1, pressure 1.5 to 3 MPa and H2/oil ratio 200 to 1000 (v/v). The performance of our lab‐made materials was encouraging. Upon optimization of the hydrotreating process, the best performance of both Pd‐Ce and Ru−Ce was achieved at T=663 K, WHSV=1 h−1, P=3 MPa and H2/oil ratio=600 v/v. Oil conversion at these reaction conditions was 97.3 and 91.8% over Pd−Ce and Ru−Ce. The respective hydrocarbon yield was 81% (for Pd−Ce) and 75.3% (for Ru−Ce). The resilience of the lab‐made catalysts was tested by time‐on‐stream study. Both catalysts were stable for 40 hours of time‐on‐stream. Finally, reaction pathway for deoxygenation of triglycerides over the investigated catalysts was proposed.

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“…Due to this, reactions like reduction and hydrodeoxygenation are favored . Besides, the rate of coke formation is lowered at high pressure and the catalyst retains its activated form ,…”

Section: Resultsmentioning

confidence: 99%

“…[17] Besides, the rate of coke formation is lowered at high pressure and the catalyst retains its activated form. [31,32]…”

Section: Effect Of Pressurementioning

confidence: 99%

Catalytic Hydrotreatment of Jatropha Oil over Lanthanum Hydroxide Supported Noble Metals: Effect of Promotion with Cerium

Patil

Vaidya

2017

ChemistrySelect

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“…Furthermore, the estimation of key petroleum fraction properties like sulfur content (wt %) and Conradson Carbon Residue −CCR (wt %) are in relationship with the molar mass distribution ( M w ) and asphaltene content (wt %), respectively. The relationship between CCR content and asphaltene content was studied by Trasobares and co-workers . They established a linear relationship between CCR and some petroleum fraction characteristics (asphaltene content).…”

Section: Resultsmentioning

confidence: 99%

“…The relationship between CCR content and asphaltene content was studied by Trasobares and co-workers. 29 They established a linear relationship between CCR and some petroleum fraction characteristics (asphaltene content). Moreover, the sulfur content (%wt) data is a function of molar mass distribution (M w ).…”

Section: Molar Mass Distribution Of the Productsmentioning

confidence: 99%

Centrifugal Reactive-Molecular Distillation from High-Boiling-Point Petroleum Fractions. 2. Recent Experiments in Pilot-Scale for Upgrading of a Heavy Feedstock

Tovar

Winter

Wolf-Maciel

et al. 2013

Ind. Eng. Chem. Res.

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This work deals with the development of experimental campaign to accomplish the upgrading of a high-boilingpoint petroleum fraction (atmospheric residue ATR-W 673.15 K + with API gravity equals 11.9 and molar mass equals 2956 kg·kmol −1 ) by centrifugal reactive-molecular distillation (CRMD). In this process, 30 fractions (15 distillates and 15 residues) were obtained under different operating conditions. HT-SimDis GC played an important role to evaluate the conversion degree. Furthermore, physicochemical properties and colloidal characterization were determined by ASTM standard methods and size exclusion chromatography (SEC) with UV−absorption detection, respectively. The pilot-scale experiments by the CRMD process showed that it successfully upgraded the feedstock into two process streams named as distillate and residue streams using 3 and 5 wt % of zeolite-based catalyst at 483.15 K and pressure system below 50.0 Pa. Under these conditions, in the distillate streams the conversion of ATR-W 673.15 K + was found considerably higher (65.6% at 3 wt % of catalyst and 64.3% at 5 wt % of catalyst) than that of residue stream (49.6% at 3 wt % of catalyst and 53.1% at 5 wt % of catalyst). Moreover, it was found that distillate streams exhibited values of API gravity between 19 and 21 and molar mass up 200 kg·kmol −1 . To analyze residue streams values of API gravity were approximately equal to 11.9 and molar mass between 2570 kg·kmol −1 and 2908 kg·kmol −1 . In this respect, the CRMD process was successfully applied in order to upgrade a high-boiling-point petroleum fraction into lower boiling point products (corresponding to the distillate and residue streams).

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Modeling Catalyst Deactivation

Ancheyta¹

2016

Deactivation of Heavy Oil Hydroprocessing Catalysts

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Upgrading of a Petroleum Residue. Kinetics of Conradson Carbon Residue Conversion

Cited by 18 publications

References 16 publications

Catalytic Hydrotreatment of Jatropha Oil over Lanthanum Hydroxide Supported Noble Metals: Effect of Promotion with Cerium

Catalytic Hydrotreatment of Jatropha Oil over Lanthanum Hydroxide Supported Noble Metals: Effect of Promotion with Cerium

Centrifugal Reactive-Molecular Distillation from High-Boiling-Point Petroleum Fractions. 2. Recent Experiments in Pilot-Scale for Upgrading of a Heavy Feedstock

Modeling Catalyst Deactivation

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