SYNTHESIS AND OPTIMIZATION OF METHANOL TO DME PROCESS CATALYST FROM A NATURAL ZEOLITE

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ROEIYAEI S.J.; SOHRABI MORTEZA; FALAMAKI K.

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Journal: AMIRKABIR Year:2008 | Volume:18 | Issue:67-D Page(s): 25-34

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Information Journal Paper

Title

SYNTHESIS AND OPTIMIZATION OF METHANOL TO DME PROCESS CATALYST FROM A NATURAL ZEOLITE

Author(s)

ROEIYAEI S.J. | SOHRABI MORTEZA | FALAMAKI K. | Issue Writer Certificate

Keywords

CLINOPTILOLITEQ2

DIMETHYLETHERQ2

METHANOLQ3

CATALYSTQ3

ZEOLITEQ2

TAGUCHI EXPERIMENTAL DESIGNQ2

Abstract

In this paper, CLINOPTILOLITE, a natural ZEOLITE from Semnan region, is used to synthesize a CATALYST for METHANOL dehydration to DME. To produce such a CATALYST and implement acid sites on the latter, the ionexchange process has been applied. In addition, to optimize the effective factors in the CATALYST synthesis process, a L9 TAGUCHI EXPERIMENTAL DESIGN has been used. In this design, the effects of four factors have been studied: Ion-exchange solution type (2 levels); Ion-exchange solution concentration; Calcination temperature and calcination time (the last three factors have been studied in 3 levels). The yield of CATALYST (conversion * selectivity) has been chosen as the response. To study the effects of these factors on the response, the 9 samples have been tested using a fixed bed reactor. (at T= 350°C, P= 1 atm & WHSV= 4.78 hr-1). The results of the statistical design show that the optimized conditions are calcinations time 3 hours, 2N ammonium chloride, as the ion-exchange solution and calcination temperature at 500°C. The optimized CATALYST was tested using a fixed bed reactor at 330° C atm pressure and WHSV= 13.8 hr-1. The results showed 98.1% conversion and 96.5% selectivity. In order to study the CATALYST behavior under the industrial operation conditions, the sample was tested in a fixed bed reactor at 300° C 16 bar pressure and WHSV=52.5 hr-1, the results indicated 67.2% conversion and 99.74% selectivity.

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APA: Copy

ROEIYAEI, S.J., SOHRABI, MORTEZA, & FALAMAKI, K.. (2008). SYNTHESIS AND OPTIMIZATION OF METHANOL TO DME PROCESS CATALYST FROM A NATURAL ZEOLITE. AMIRKABIR, 18(67-D), 25-34. SID. https://sid.ir/paper/856/en

Vancouver: Copy

ROEIYAEI S.J., SOHRABI MORTEZA, FALAMAKI K.. SYNTHESIS AND OPTIMIZATION OF METHANOL TO DME PROCESS CATALYST FROM A NATURAL ZEOLITE. AMIRKABIR[Internet]. 2008;18(67-D):25-34. Available from: https://sid.ir/paper/856/en

IEEE: Copy

S.J. ROEIYAEI, MORTEZA SOHRABI, and K. FALAMAKI, “SYNTHESIS AND OPTIMIZATION OF METHANOL TO DME PROCESS CATALYST FROM A NATURAL ZEOLITE,” AMIRKABIR, vol. 18, no. 67-D, pp. 25–34, 2008, [Online]. Available: https://sid.ir/paper/856/en

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