NMR analysis of cracking products of asphalt and assessment of catalyst performance

Imtiaz Ahmed; Mohammad Shakirullah; Habib Ur Rehman; Mohammad  Ishaq; Mohammad Arsala Khan; Amjad Shah

doi:10.1016/j.energy.2008.10.008

NMR analysis of cracking products of asphalt and assessment of catalyst performance

Imtiaz Ahmed, Mohammad Shakirullah, Habib Ur Rehman, Mohammad Ishaq, Mohammad Arsala Khan, Amjad Shah

Research output: Contribution to journal › Article › peer-review

Abstract

This paper reports 13C nuclear magnetic resonance (NMR) analysis of some crackates obtained from asphalt cracking in a micro autoclave under a pool of nitrogen. The cracking was carried out in the presence of Zeolite Socony Mobil #5 (HZSM-5) and locally cheap and readily available clay i.e. Utimanzai Clay (UTIMAC) as catalysts. The crackates obtained in case of each run was analyzed by 13C NMR spectrophotometer using CDCl3 as dissolving solvent and tetramethyl silane (TMS) as internal standard. The 13C NMR data was used to assess the extent of hydrocracking and degree of branching in crackates from asphalt .The results indicate that the cheap local catalyst used has comparable suitability with the conventional expensive catalyst in terms of asphalt cracking and its conversion to light products enriched with bulk n-alkane configurations.

Original language	English
Pages (from-to)	127-133
Number of pages	7
Journal	Energy: The International Journal
Volume	34
Issue number	2
Early online date	6 Dec 2008
DOIs	https://doi.org/10.1016/j.energy.2008.10.008
Publication status	Published - Feb 2009

Keywords

Asphalt
NMR spectroscopy
Catalysis

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10.1016/j.energy.2008.10.008

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title = "NMR analysis of cracking products of asphalt and assessment of catalyst performance",

abstract = "This paper reports 13C nuclear magnetic resonance (NMR) analysis of some crackates obtained from asphalt cracking in a micro autoclave under a pool of nitrogen. The cracking was carried out in the presence of Zeolite Socony Mobil #5 (HZSM-5) and locally cheap and readily available clay i.e. Utimanzai Clay (UTIMAC) as catalysts. The crackates obtained in case of each run was analyzed by 13C NMR spectrophotometer using CDCl3 as dissolving solvent and tetramethyl silane (TMS) as internal standard. The 13C NMR data was used to assess the extent of hydrocracking and degree of branching in crackates from asphalt .The results indicate that the cheap local catalyst used has comparable suitability with the conventional expensive catalyst in terms of asphalt cracking and its conversion to light products enriched with bulk n-alkane configurations.",

keywords = "Asphalt, NMR spectroscopy, Catalysis",

author = "Imtiaz Ahmed and Mohammad Shakirullah and Rehman, {Habib Ur} and Mohammad Ishaq and Khan, {Mohammad Arsala} and Amjad Shah",

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doi = "10.1016/j.energy.2008.10.008",

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T1 - NMR analysis of cracking products of asphalt and assessment of catalyst performance

AU - Ahmed, Imtiaz

AU - Shakirullah, Mohammad

AU - Rehman, Habib Ur

AU - Ishaq, Mohammad

AU - Khan, Mohammad Arsala

AU - Shah, Amjad

PY - 2009/2

Y1 - 2009/2

N2 - This paper reports 13C nuclear magnetic resonance (NMR) analysis of some crackates obtained from asphalt cracking in a micro autoclave under a pool of nitrogen. The cracking was carried out in the presence of Zeolite Socony Mobil #5 (HZSM-5) and locally cheap and readily available clay i.e. Utimanzai Clay (UTIMAC) as catalysts. The crackates obtained in case of each run was analyzed by 13C NMR spectrophotometer using CDCl3 as dissolving solvent and tetramethyl silane (TMS) as internal standard. The 13C NMR data was used to assess the extent of hydrocracking and degree of branching in crackates from asphalt .The results indicate that the cheap local catalyst used has comparable suitability with the conventional expensive catalyst in terms of asphalt cracking and its conversion to light products enriched with bulk n-alkane configurations.

AB - This paper reports 13C nuclear magnetic resonance (NMR) analysis of some crackates obtained from asphalt cracking in a micro autoclave under a pool of nitrogen. The cracking was carried out in the presence of Zeolite Socony Mobil #5 (HZSM-5) and locally cheap and readily available clay i.e. Utimanzai Clay (UTIMAC) as catalysts. The crackates obtained in case of each run was analyzed by 13C NMR spectrophotometer using CDCl3 as dissolving solvent and tetramethyl silane (TMS) as internal standard. The 13C NMR data was used to assess the extent of hydrocracking and degree of branching in crackates from asphalt .The results indicate that the cheap local catalyst used has comparable suitability with the conventional expensive catalyst in terms of asphalt cracking and its conversion to light products enriched with bulk n-alkane configurations.

KW - Asphalt

KW - NMR spectroscopy

KW - Catalysis

U2 - 10.1016/j.energy.2008.10.008

DO - 10.1016/j.energy.2008.10.008

M3 - Article

SN - 0360-5442

VL - 34

SP - 127

EP - 133

JO - Energy: The International Journal

JF - Energy: The International Journal

IS - 2

ER -

NMR analysis of cracking products of asphalt and assessment of catalyst performance

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