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مرکز اطلاعات علمی SID1
اسکوپوس
مرکز اطلاعات علمی SID
ریسرچگیت
strs
Author(s): 

CHISTI Y.

Issue Info: 
  • Year: 

    2008
  • Volume: 

    26
  • Issue: 

    3
  • Pages: 

    126-131
Measures: 
  • Citations: 

    388
  • Views: 

    20466
  • Downloads: 

    15944
Keywords: 
Abstract: 

Yearly Impact:

View 20466

Download 15944 Citation 388 Refrence 0
Author(s): 

HAJEK M. | SKOPAL F. | MACHEK J.

Issue Info: 
  • Year: 

    2006
  • Volume: 

    108
  • Issue: 

    8
  • Pages: 

    666-669
Measures: 
  • Citations: 

    369
  • Views: 

    7149
  • Downloads: 

    13524
Keywords: 
Abstract: 

Yearly Impact:

View 7149

Download 13524 Citation 369 Refrence 0
Author(s): 

KNOTHE G.

Issue Info: 
  • Year: 

    2010
  • Volume: 

    36
  • Issue: 

    3
  • Pages: 

    364-373
Measures: 
  • Citations: 

    382
  • Views: 

    14376
  • Downloads: 

    15092
Keywords: 
Abstract: 

Yearly Impact:

View 14376

Download 15092 Citation 382 Refrence 0
گارگاه ها آموزشی
Author(s): 

SCOTT S.A. | DAVEY M.P. | DENNIS J.S.

Issue Info: 
  • Year: 

    2010
  • Volume: 

    21
  • Issue: 

    -
  • Pages: 

    277-286
Measures: 
  • Citations: 

    386
  • Views: 

    10082
  • Downloads: 

    15604
Keywords: 
Abstract: 

Yearly Impact:

View 10082

Download 15604 Citation 386 Refrence 0
Issue Info: 
  • Year: 

    2017
  • Volume: 

    8
  • Issue: 

    2
  • Pages: 

    95-101
Measures: 
  • Citations: 

    0
  • Views: 

    26654
  • Downloads: 

    21175
Abstract: 

In this paper, HZSM5 zeolite was synthesized through reflux method on support material CaO (25, 35 and 45 wt%) in two specific methods: microwave and impregnation at high temperature. The zeolite catalyst was modified with impregnation of NaOH (2, 4, 8, 12 wt%) at room temperature. The modified zeolite was used in transesterification of rapeseed oil with methanol in abatch catalytic process. In transesterification of rapeseed oil, the catalyticactivities of HZSM5, NaZSM5, KZSM5 were considered. The prepared catalysts were characterized by several techniques such as X-ray diffraction (XRD), Brunauer Emmett Teller (BET) surface area and also the surface image was scanned by scanning electron microscopy (SEM). The parameters affecting on BIODIESEL yield at optimum reaction conditions were investigated. The maximum yield was achieved with 8wt% of NaOH loaded on HZSM5 at reaction temperature of 65˚ C, reaction time of 12 hours and catalyst/oil mass ratio of 9. Also the yield of CaO loaded with impregnation at high temperature was more desired than CaO loaded with microwave. Meanwhile the catalytic activity of HZSM5, NaZSM5 and KZSM5 was nearly zero; and the catalytic activity of modified zeolite was HZSM5>NaZSM5>KZSM5 subsequently.

Yearly Impact:

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Issue Info: 
  • Year: 

    2009
  • Volume: 

    25
  • Issue: 

    -
  • Pages: 

    301-309
Measures: 
  • Citations: 

    394
  • Views: 

    11346
  • Downloads: 

    16971
Keywords: 
Abstract: 

Yearly Impact:

View 11346

Download 16971 Citation 394 Refrence 0
strs
Author(s): 

CERVERO J.M. | COCA J. | LUQUE S.

Journal: 

GRASAS Y ACEITES

Issue Info: 
  • Year: 

    2008
  • Volume: 

    59
  • Issue: 

    1
  • Pages: 

    76-83
Measures: 
  • Citations: 

    396
  • Views: 

    15792
  • Downloads: 

    17315
Keywords: 
Abstract: 

Yearly Impact:

View 15792

Download 17315 Citation 396 Refrence 0
Author(s): 

SARIN R. | ARORA A.K. | RANJAN R.

Journal: 

LUBRICATION SCIENCE

Issue Info: 
  • Year: 

    2007
  • Volume: 

    19
  • Issue: 

    2
  • Pages: 

    151-157
Measures: 
  • Citations: 

    370
  • Views: 

    10134
  • Downloads: 

    13642
Keywords: 
Abstract: 

Yearly Impact:

View 10134

Download 13642 Citation 370 Refrence 0
Author(s): 

NARASIMHARAO K. | LEE A.

Journal: 

J BIOBASED MATER BIO

Issue Info: 
  • Year: 

    2007
  • Volume: 

    1
  • Issue: 

    -
  • Pages: 

    19-20
Measures: 
  • Citations: 

    384
  • Views: 

    8543
  • Downloads: 

    15336
Keywords: 
Abstract: 

Yearly Impact:

View 8543

Download 15336 Citation 384 Refrence 0
Issue Info: 
  • Year: 

    2016
  • Volume: 

    13
  • Issue: 

    2
  • Pages: 

    22-32
Measures: 
  • Citations: 

    0
  • Views: 

    65195
  • Downloads: 

    29383
Abstract: 

The ultrasound-assisted (UA) soybean oil methanolysis using KOH as a catalyst was studied at different reaction conditions in a micro reactor. Box–Behnken experimental design, with three variables, was performed and the effects of three reaction variables, i.e., reaction temperature, catalyst concentration and the methanol-to-oil molar ratio on fatty acid methyl ester (FAME) yield were evaluated by method of analysis of variance (ANOVA) and multiple regression. A quadratic polynomial model was obtained to predict the methyl ester yield. A yield of 97.1% for methyl ester was obtained at the deduced optimal conditions: reaction temperature of 47°C, KOH catalyst concentration of 1.29 (w/w%) and methanol-to-oil molar ratio of 6:1. Validation experiments confirmed the validity of the predicted model.At the optimal operation condition for the ultrasonic process, a higher yield of methyl esters was obtained in comparison with that of the non-ultrasonic layout. The results show that UA trans esterification in micro reactor minimizes the reaction time and temperature, alcohol-to-oil molar ratio as well as energy consumption.

Yearly Impact:

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