Catalytic Cracking of Polypropylene and Polyethylene Using Zirconium/aluminium Oxide-pillared Clay

Released on by
preview-18

  • Catalytic Cracking of Polypropylene and Polyethylene Using Zirconium/aluminium Oxide-pillared Clay Book Detail

  • Author :
  • Release Date : 2008
  • Publisher :
  • Genre : Aluminum oxide
  • Pages : 212
  • ISBN 13 :
  • File Size : 63,63 MB
DOWNLOAD BOOK

Catalytic Cracking of Polypropylene and Polyethylene Using Zirconium/aluminium Oxide-pillared Clay by PDF Summary

Book Description: Aluminium oxide-pillared clay was prepared by intercalation between ionic precursors and raw clay suspensions with any previous purification and homoionisation of clay prior to pillaring. The intercalated product was calcined at 500 degress celsius for 1h. And then was impregnated with various amounts of zirconium (from 0.0 to 5.0 wt%) by slurry method and calcined at 450 degress celsius for 4h. The basal spacing, the surface area, the aluminium contents and the vibrational of chemical bonds in different environments were determined by XRD, N[subscript 2] -BET, ICP-AES and IR respectively. The synthesized aluminium oxide-pillared clay had a basal spacing and surface area of 16.3 aungstrom and 189 m[superscript 2] g [superscript-1]. The basal spacings of zirconium doped aluminium oxide-pillared clays(zirconium/aluminium oxide-pillared clays) at 15.6 aungstrom were lower than aluminium oxide-pillared clay. Increasing amount of zirconium, the surface area decreased from 188 to 131 m [superscript 2] g [superscript -1]. When compared catalytic cracking reaction between two type of polymer observed that polyethylene more difficult than polypropylene. When aluminium oxide-pillared clay and zirconium/aluminium oxide-pillared clays were used as catalysts, the conversions of both polymers greatly increased compared to that in the absence of a catalyst. The cracking reaction was carried out in a semi-batch reactor with a mixture of catalyst and plastic at 350-450 degress celsius. The effects of reaction temperature, reaction time, type of catalyst and catalyst per plastic ratio were discussed. The activity and selectivity of catalysts modified by impregnation of zirconium were higher than the original clay catalyst. Gaseous and liquidous hydrocarbon products were analysed by GC. The optimal condition for PP cracking was reaction time of 1.0 h, reaction temperature of 380 degress celsius, 2.0wt%zirconium/aluminium oxide-pillared clay as a catalyst and 10.0 wt% catalyst per plastic ratio. The major components of gas fraction were C [subscript 5] + and C [subscript 3] (propene). Liquid fractions were in he range of C [subscript 7] to C [subscript 9] with the boiling point range compared to that of standard gasoline. The optimal condition for PE cracking was reaction time of 1.5 h, reaction temperature of 410 degress Celsius, 2.0 wt%zirconium/aluminium oxide-pillared clay and 10.0 % catalyst per plastic ratio. The major components of gas fractions were C [subscript 5+], C [subscript 4](n-butane), C [subscript 3] (propene), C [subscript 2] (ethane) and C [subscript 1] (methane). Liquid fractions were in he range of C [subscript 7] to C [subscript 10].

Disclaimer: www.yourbookbest.com does not own Catalytic Cracking of Polypropylene and Polyethylene Using Zirconium/aluminium Oxide-pillared Clay books pdf, neither created or scanned. We just provide the link that is already available on the internet, public domain and in Google Drive. If any way it violates the law or has any issues, then kindly mail us via contact us page to request the removal of the link.

Pillared Clays and Related Catalysts

Pillared Clays and Related Catalysts

File Size : 18,18 MB
Total View : 4244 Views
DOWNLOAD

Since the first works introducing the aluminum intercalated clay family in the early 1970s, interest in the synthesis of pillared interlayered clays has increas

Active Protective Coatings

Active Protective Coatings

File Size : 68,68 MB
Total View : 4519 Views
DOWNLOAD

This book covers a broad range of materials science that has been brought to bear on providing solutions to the challenges of developing self-healing and protec