Step changes and deactivation behavior in the continuous decarboxylation of stearic acid

Anders Theilgaard Madsen; Bartosz Rozmyszłowicz; Irina L. Simakova; Teuvo Kilpiö; Anne Riikka Leino; Krisztián Kordás; Kari Eränen; Päivi Mäki-Arvela; Dmitry Yu Murzin

doi:10.1021/ie201273n

Step changes and deactivation behavior in the continuous decarboxylation of stearic acid

Anders Theilgaard Madsen, Bartosz Rozmyszłowicz, Irina L. Simakova, Teuvo Kilpiö, Anne Riikka Leino, Krisztián Kordás, Kari Eränen, Päivi Mäki-Arvela, Dmitry Yu Murzin^*

^*Tämän työn vastaava kirjoittaja

Tutkimustuotos: Lehtiartikkeli › Artikkeli › Tieteellinen › vertaisarvioitu

46 Sitaatiot (Scopus)

Abstrakti

Deoxygenation of dilute and concentrated stearic acid over 2% Pd/C beads was performed in a continuous reactor at 300 °C and 20 bar pressure of Ar or 5%H2/Ar. Stable operation was obtained in 5%H ₂ atmosphere, with 95% conversion of 10 mol % dilute stearic acid in dodecane and 12% conversion of pure stearic acid. Deactivation took place in H ₂-deficient gas atmosphere, probably as a result of the formation of unsaturated products and coking in the pore system. Transient experiments with step changes were performed: 1 h was required for the step change to be visible in liquid sampling,whereas steady states were achieved after a total of 2.5-3 h. Postreaction analysis of the spent catalyst revealed that a deactivation profile was formed downward over the catalyst bed.

Alkuperäiskieli	Englanti
Sivut	11049-11058
Sivumäärä	10
Julkaisu	Industrial and Engineering Chemistry Research
Vuosikerta	50
Numero	19
DOI - pysyväislinkit	https://doi.org/10.1021/ie201273n
Tila	Julkaistu - 5 lokak. 2011
OKM-julkaisutyyppi	A1 Julkaistu artikkeli, soviteltu

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10.1021/ie201273n

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title = "Step changes and deactivation behavior in the continuous decarboxylation of stearic acid",

abstract = "Deoxygenation of dilute and concentrated stearic acid over 2% Pd/C beads was performed in a continuous reactor at 300 °C and 20 bar pressure of Ar or 5%H2/Ar. Stable operation was obtained in 5%H 2 atmosphere, with 95% conversion of 10 mol % dilute stearic acid in dodecane and 12% conversion of pure stearic acid. Deactivation took place in H 2-deficient gas atmosphere, probably as a result of the formation of unsaturated products and coking in the pore system. Transient experiments with step changes were performed: 1 h was required for the step change to be visible in liquid sampling,whereas steady states were achieved after a total of 2.5-3 h. Postreaction analysis of the spent catalyst revealed that a deactivation profile was formed downward over the catalyst bed.",

author = "Madsen, {Anders Theilgaard} and Bartosz Rozmysz{\l}owicz and Simakova, {Irina L.} and Teuvo Kilpi{\"o} and Leino, {Anne Riikka} and Kriszti{\'a}n Kord{\'a}s and Kari Er{\"a}nen and P{\"a}ivi M{\"a}ki-Arvela and Murzin, {Dmitry Yu}",

year = "2011",

month = oct,

day = "5",

doi = "10.1021/ie201273n",

language = "English",

volume = "50",

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journal = "Industrial and Engineering Chemistry Research",

issn = "0888-5885",

publisher = "American Chemical Society",

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T1 - Step changes and deactivation behavior in the continuous decarboxylation of stearic acid

AU - Madsen, Anders Theilgaard

AU - Rozmyszłowicz, Bartosz

AU - Simakova, Irina L.

AU - Kilpiö, Teuvo

AU - Leino, Anne Riikka

AU - Kordás, Krisztián

AU - Eränen, Kari

AU - Mäki-Arvela, Päivi

AU - Murzin, Dmitry Yu

PY - 2011/10/5

Y1 - 2011/10/5

N2 - Deoxygenation of dilute and concentrated stearic acid over 2% Pd/C beads was performed in a continuous reactor at 300 °C and 20 bar pressure of Ar or 5%H2/Ar. Stable operation was obtained in 5%H 2 atmosphere, with 95% conversion of 10 mol % dilute stearic acid in dodecane and 12% conversion of pure stearic acid. Deactivation took place in H 2-deficient gas atmosphere, probably as a result of the formation of unsaturated products and coking in the pore system. Transient experiments with step changes were performed: 1 h was required for the step change to be visible in liquid sampling,whereas steady states were achieved after a total of 2.5-3 h. Postreaction analysis of the spent catalyst revealed that a deactivation profile was formed downward over the catalyst bed.

AB - Deoxygenation of dilute and concentrated stearic acid over 2% Pd/C beads was performed in a continuous reactor at 300 °C and 20 bar pressure of Ar or 5%H2/Ar. Stable operation was obtained in 5%H 2 atmosphere, with 95% conversion of 10 mol % dilute stearic acid in dodecane and 12% conversion of pure stearic acid. Deactivation took place in H 2-deficient gas atmosphere, probably as a result of the formation of unsaturated products and coking in the pore system. Transient experiments with step changes were performed: 1 h was required for the step change to be visible in liquid sampling,whereas steady states were achieved after a total of 2.5-3 h. Postreaction analysis of the spent catalyst revealed that a deactivation profile was formed downward over the catalyst bed.

UR - http://www.scopus.com/inward/record.url?scp=84860142914&partnerID=8YFLogxK

U2 - 10.1021/ie201273n

DO - 10.1021/ie201273n

M3 - Article

AN - SCOPUS:84860142914

SN - 0888-5885

VL - 50

SP - 11049

EP - 11058

JO - Industrial and Engineering Chemistry Research

JF - Industrial and Engineering Chemistry Research

IS - 19

ER -

Step changes and deactivation behavior in the continuous decarboxylation of stearic acid

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