Citation: Sameh M. K. Aboul-Fotouh. Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts[J]. Journal of Fuel Chemistry and Technology, ;2014, 42(3): 350-356. shu

Production of dimethylether (DME) as a clean fuel using sonochemically prepared CuO and/or ZnO-modified γ-alumina catalysts

Sameh M. K. Aboul-Fotouh ^,

1.
Ain Shams University, Faculty of Education, Chemistry Department, Roxy, Cairo 11566, Egypt

Corresponding author: Sameh M. K. Aboul-Fotouh,
Received Date: 18 December 2013
Available Online: 30 January 2014

The catalytic conversion of methanol to dimethylether (DME) was studied over CuO/Al₂O₃, ZnO/Al₂O₃ and ZnO-CuO/Al₂O₃ nanocatalysts prepared in presence or absence of ultrasonic irradiation. The catalysts were characterized by X-ray diffraction (XRD), surface characterization method (BET), scanning electron microscope (SEM), H₂-temperature programmed reduction (H₂-TPR) and temperature programmed desorption of ammonia (NH₃-TPD). The experimental results show that during catalytic dehydration of methanol to dimethylether, the activities of the CuO/Al₂O₃, ZnO/Al₂O₃ and ZnO-CuO/Al₂O₃ catalysts prepared using ultrasonic treatment are much higher than those prepared in absence of ultrasonication. SEM shows that the use of ultrasonication results in much smaller nanoparticles. BET and XRD show that the ultrasonication increases the surface area and pore volume of the catalysts. H₂-TPR profiles indicated that reducibility of the sonicated nanocatalysts is carried out at lower temperatures. NH₃-TPD shows that ultrasound irradiation has enhanced the acidity of the nanocatalyst and hence enhanced catalytic performance for DME formation.
- ultrasonication,
- methanol,
- DME,
- γ-Al₂O₃,
- CuO,
- ZnO
1. [1]
  [1] FLEISCH T H, BASU A, GRADASSI M J, MASIN J G. Dimethyl ether: A fuel for the 21st century[J]. Stud Surf Sci Catal, 1997, 107: 117-125.
2. [2]
  [2] SEMELSBERGER T A, BORUP R L, GREENE H L. Dimethyl ether (DME) as an alternative fuel[J]. J Power Sources, 2006, 156(2): 497-511.
3. [3]
  [3] VISHWANATHAN V, JUN K W, KIM J W, ROH H S. Vapour phase dehydration of crude methanol to dimethyl ether over Na-modified H-ZSM-5 catalysts[J]. Appl Catal A: Gen, 2004, 276(1/2): 251-256.
4. [4]
  [4] CAI G Y, LIU Z M, SHI R M, HE C Q, YANG L X, SUN C L, CHANG Y J. Light alkenes from syngas via dimethyl ether[J]. Appl Catal A: Gen, 1995, 125(1): 29-38.
5. [5]
  [5] XU M T, GOODMAN D W, BHATTACHARYYA A. Catalytic dehydration of methanol to dimethyl ether (DME) over Pd/Cab-O-Sil catalysts[J]. Appl Catal A: Gen, 1997, 149: 303-309.
6. [6]
  [6] KIM S D, BAEK S C, LEE Y J, JUN K W, KIM M J, YOO I S. Effect of γ-alumina content on catalytic performance of modified ZSM-5 for dehydration of crude methanol to dimethyl ether[J]. Appl Catal A: Gen, 2006, 309(1): 139-143.
7. [7]
  [7] VISHWANATHAN V, ROH H S, KIM J W, JUN K W. Surface properties and catalytic activity of TiO₂-ZrO₂ mixed oxides in dehydration of methanol to dimethyl ether[J]. Catal Lett, 2004, 96(1/2): 23-28.
8. [8]
  [8] FEI J H, HOU Z Y, ZHU B, LOU H, ZHENG X M. Synthesis of dimethyl ether (DME) on modified HY zeolite and modified HY zeolite-supported Cu-Mn-Zn catalysts[J]. Appl Catal A: Gen, 2006, 304: 49-54.
9. [9]
  [9] YARIPOUR F, BAGHAEI F, SCHMIDT I, PERREGAARD J. Catalytic dehydration of methanol to dimethyl ether (DME) over solid-acid catalysts[J]. Catal Commun, 2005, 147(6): 147-152.
10. [10]
  [10] KIM S M, LEE Y J, BAE J W, POTDAR H S, JUN K W. Synthesis and characterization of a highly active alumina catalyst for methanol dehydration to dimethyl ether[J]. Appl Catal A: Gen, 2008, 348(1): 113-120.
11. [11]
  [11] ZHANG Y L, SUN Q, DENG J F, WU D. A high activity Cu/ZnO/Al₂O₃ catalyst for methanol synthesis: Preparation and catalytic properties[J]. Appl Catal A: Gen, 1997, 158(1/2): 105-120.
12. [12]
  [12] [JP2]REUBROYCHAROEN P, VITIDSANT T, YONEYAMA Y, TSUBAKI N. Development of a new low-temperature methanol synthesis process[J]. Catal Today, 2004, 89(4): 447-454.
13. [13]
  [13] MAO D S, YANG W M, XIA J C, ZHANG B, SONG Q Y, CHEN Q L. Highly effective hybrid catalyst for the direct synthesis of dimethyl ether from syngas with magnesium oxide-modified HZSM-5 as a dehydration component[J]. J Catal, 2005, 230(1): 140-149.
14. [14]
  [14] BALTES C, VUKOJEVIC S, SCHÜTH F. Correlations between synthesis, precursor, and catalyst structure and activity of a large set of CuO/ZnO/Al₂O₃ catalysts for methanol synthesis[J]. J Catal, 2008, 258(2): 334-344.
15. [15]
  [15] BEHRENS M. Meso-and nano-structuring of industrial Cu/ZnO/Al₂O₃ catalysts[J]. J Catal, 2009, 267(1): 24-29.
16. [16]
  [16] YANG G H, TSUBAKI N, SHAMOTO J, YONEYAMA Y, ZHANG Y. Confinement effect and synergistic function of H-ZSM-5/Cu-ZnO-Al₂O₃ capsule catalyst for one-step controlled synthesis[J]. J Am Chem Soc, 2010, 132(23): 8129-8136.
17. [17]
  [17] [JP2]ABOUL-FOTOUH S M K. Effect of ultrasonic irradiation and/or halogenation on the catalytic performance of γ-Al₂O₃ for methanol dehydration to dimethyl ether[J]. J Fuel Chem Technol, 2013, 41(9): 1077-1084.
18. [18]
  [18] ABOUL-GHEIT A K. Acid site strength distibution in mordenites by differential scanning calorimetry[J]. J Catal, 1988, 113(2): 490-496.
19. [19]
  [19] ABOUL-GHEIT A K. Effect of decationation and dealumination of zeolite Y on its acidity as assessed by ammonia desorption measured by differential scanning calorimetry (DSC)[J]. Thermochim Acta, 1991, 191(2): 233-240.
20. [20]
  [20] FREEL J. Chemisorption on supported platinum: Ⅰ. Evaluation of a pulse method[J]. J Catal, 1972, 25(1):139-148.
21. [21]
  [21] REZAEI M, ALAVI S M, SAHEBDELFAR S, YAN Z F. Tetragonal nanocrystalline zirconia powder with high surface area and mesoporous structure[J]. Poweder Technol, 2006, 168(2): 59-63.
22. [22]
  [22] KHOSHBIN R, HAGHIGHI M. Direct syngas to DME as a clean fuel: The beneficial use of ultrasound for the preparation of CuO-ZnO-Al₂O₃/HZSM-5 nanocatalyst[J]. Chem Eng Res Des, 2013, 91(6): 1111-1122.
23. [23]
  [23] XIA S, NIE R, LU X, WANG L, CHEN P, HOU Z. Hydrogenolysis of glycerol over Cu_0.4/Zn_5.6_-xMg_<em>xAl₂O_8.6 catalysts: The role of basicity and hydrogenation spillover[J]. J Catal, 2012, 296: 1-11.
24. [24]
  [24] NIE R, LEI H, PAN S, WANG L, FEI J, HOU Z. Core-shell structured CuO-ZnO@H-ZSM-5 catalysts for CO hydrogenation to dimethyl ether[J]. Fuel, 2012, 96: 419-425.
25. [25]
  [25] FEI J, YANG M, HOU Z, ZHENG X. Effect of the addition of manganese and zinc on the properties of copper-based catalyst for the synthesis of syngas to dimethyl ether[J]. Energy Fuels, 2004, 18(5): 1584-1587.
26. [26]
  [26] YANG M, MEN Y, LI S, CHEN G. Hydrogen production by steam reforming of dimethyl ether over ZnO-Al₂O₃ bi-functional catalyst[J]. Int J Hydrog Energy, 2012, 37(10): 8360-8369.
27. [27]
  [27] NASIKIN M, WAHID A. Effect of ultrasonic during preparation on Cu-based catalyst performance for hydrogenation of CO, to methanol[J]. AJChE, 2005, 5(2): 111-115.
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