A STATISTICAL EVALUATION OF THE EFFECTS OF PROCESS VARIABLES DURING CATALYTIC HYDROGENATION OF PASSION FRUIT (passiflora edulis) SEED OIL

Andrade, Geraldo; Filho, Geraldo Narciso da Rocha; Taqueda, Maria Elena Santos

doi:10.1590/s0104-66321998000100005

Cited by 2 publications

(3 citation statements)

References 11 publications

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“…Alpha is defined as the distance from the center point and has a maximum value of 2 n/4 , where n is the number of factors. 19 Accordingly the value of alpha (a) in this study was 1.41421.…”

Section: Design Of Experiments (Doe)mentioning

confidence: 45%

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Optimization of Sunflower Oil Hydrogenation on Pd-B/-Al2O3 Catalyst

Alshaibani¹,

Yaakob²,

Ghaleb³

2014

Orient. J. Chem

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Hydrogenation of vegetable oils is a heterogeneous process where the process factors influence the conversion and selectivity. A Statistical study was performed on a sunflower oil (SFO) hydrogenation process using Pd-B/g-Al 2 O 3 catalyst to study the effect of the process factors, including temperature, hydrogen pressure, agitation, catalyst dose and reaction time on the iodine value and trans fatty acid content of hydrogenated SFO. It was found that each factor has a noticeable effect on the iodine value and trans fatty acid content of hydrogenated SFO. The study was also aimed to find out the optimum values for the hydrogenation factors which are capable to decline the IV to 70 (g iodine per 100 g oil) as well as produce a minimum trans fatty acid content of the hydrogenated SFO. The optimum values were found to be 431 K, 1000 kPa, 1000 kPa, 0.29 % and 42.2 min for the temperature, hydrogen pressure, agitation, catalyst dose and reaction time respectively.

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Section: Design Of Experiments (Doe)mentioning

confidence: 45%

“…RSM optimizes the number of runs and the time required for model-building and interpretation through statistical analysis 18 . This methodology and central composite design (CCD) can be used to predict oil hydrogenation responses, such as IV 19 .…”

Section: Introductionmentioning

confidence: 99%

Optimization of Sunflower Oil Hydrogenation on Pd-B/-Al2O3 Catalyst

Alshaibani¹,

Yaakob²,

Ghaleb³

2014

Orient. J. Chem

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“…It reduces the number of runs and the time required for model-building and statistical analysis . This technique can be used to predict oil hydrogenation responses, such as IV (Andrade et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Optimization of Pd-B/γ-Al2O3 catalyst preparation for palm oil hydrogenation by response surface methodology (RSM)

Alshaibani

Yaakob

Alsobaai

et al. 2014

Braz. J. Chem. Eng.

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-Response surface methodology was used to design and evaluate the experimental variables for Pd-B/γ-Al 2 O 3 catalyst preparation. The catalyst was prepared by impregnation and chemical reduction. Thirteen different samples of the catalyst were prepared at different KOH concentrations and annealed at various temperatures, before applying them in palm oil hydrogenation. Hydrogenation was performed on a 0.12% Pd-B/γ-Al 2 O 3 catalyst at a temperature of 393 K, hydrogen pressure of 500 kPa and agitation of 500 rpm for 1 h. The iodine value (IV) and trans fatty acids (TFAs) content responses were measured for each hydrogenated palm oil sample. The predicted models were verified for both responses and found to be statistically adequate. An optimization study was performed on the catalyst preparation variables for minimizing both IV and TFAs content. The Pd-B/γ-Al 2 O 3 prepared under optimized conditions exhibited 47% higher conversion and 22% lower trans-isomerization selectivity than Escat 1241 commercial catalyst. The Pd-B/γ-Al 2 O 3 catalyst preparation variables have a noticeable effect on palm oil hydrogenation conversion and trans-isomerization selectivity.

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A STATISTICAL EVALUATION OF THE EFFECTS OF PROCESS VARIABLES DURING CATALYTIC HYDROGENATION OF PASSION FRUIT (passiflora edulis) SEED OIL

Cited by 2 publications

References 11 publications

Optimization of Sunflower Oil Hydrogenation on Pd-B/-Al2O3 Catalyst

Optimization of Sunflower Oil Hydrogenation on Pd-B/-Al2O3 Catalyst

Optimization of Pd-B/γ-Al2O3 catalyst preparation for palm oil hydrogenation by response surface methodology (RSM)

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