Enhancing propylene production from catalytic cracking of Arabian Light VGO over novel zeolites as FCC catalyst additives

M. A.B. Siddiqui; A. M. Aitani; M. R. Saeed; N. Al-Yassir; S. Al-Khattaf

doi:10.1016/j.fuel.2010.09.041

Enhancing propylene production from catalytic cracking of Arabian Light VGO over novel zeolites as FCC catalyst additives

M. A.B. Siddiqui, A. M. Aitani, M. R. Saeed, N. Al-Yassir, S. Al-Khattaf^*

^*Corresponding author for this work

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

82 Scopus citations

Abstract

The catalytic cracking of vacuum gas oil over fluid catalytic cracking (FCC) catalyst containing novel additives was investigated to enhance propylene yield. A conventional ZSM-5, mesoporous ZSM-5 (Meso-Z), TNU-9 and SSZ-33 zeolite were tested as additives to a commercial equilibrium USY FCC catalyst (E-Cat). Their catalytic performance was assessed in a fixed-bed micro-activity test unit (MAT) at 520 °C and various catalyst/oil ratios. The cracking activity of all E-Cat/additives did not decrease by using these additives. The highest propylene yield of 12.2 wt.% was achieved over E-Cat/Meso-Z compared with 9.0 wt.% each over E-Cat/ZSM-5 and E-Cat/TNU-9, at similar gasoline yield penalty. The enhanced production of propylene over Meso-Z is attributed to its mesopores that suppressed secondary and hydrogen transfer reactions and offered easier transport and accessibility to active sites. The lower enhancement of propylene over the large-pore SSZ-33 additive was due to its high-hydrogen transfer activity. Gasoline quality was improved by the use of all additives, as octane rating increased by 7-12 numbers for all E-Cat/additives.

Original language	English
Pages (from-to)	459-466
Number of pages	8
Journal	Fuel
Volume	90
Issue number	2
DOIs	https://doi.org/10.1016/j.fuel.2010.09.041
State	Published - Feb 2011

Bibliographical note

Funding Information:
The authors acknowledge the financial support provided by King Abdul Aziz City for Science and Technology (KACST) for this research under Refining & Petrochemicals Program of the National Science, Technology & Innovation Plan (NSTIP; 09-PETE85-4). We are also grateful for the support from Ministry of Higher Education, Saudi Arabia for establishing the Center of Research Excellence in Petroleum Refining & Petrochemicals at Fahd University of Petroleum & Minerals (KFUPM). The authors thank J. Cejka and M. Kubu for providing the zeolites TNU-9, SSZ-33, and Meso-Z.

Keywords

Catalytic cracking
FCC additive
Gasoline
Light olefins
Propylene

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
Organic Chemistry

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title = "Enhancing propylene production from catalytic cracking of Arabian Light VGO over novel zeolites as FCC catalyst additives",

abstract = "The catalytic cracking of vacuum gas oil over fluid catalytic cracking (FCC) catalyst containing novel additives was investigated to enhance propylene yield. A conventional ZSM-5, mesoporous ZSM-5 (Meso-Z), TNU-9 and SSZ-33 zeolite were tested as additives to a commercial equilibrium USY FCC catalyst (E-Cat). Their catalytic performance was assessed in a fixed-bed micro-activity test unit (MAT) at 520 °C and various catalyst/oil ratios. The cracking activity of all E-Cat/additives did not decrease by using these additives. The highest propylene yield of 12.2 wt.\% was achieved over E-Cat/Meso-Z compared with 9.0 wt.\% each over E-Cat/ZSM-5 and E-Cat/TNU-9, at similar gasoline yield penalty. The enhanced production of propylene over Meso-Z is attributed to its mesopores that suppressed secondary and hydrogen transfer reactions and offered easier transport and accessibility to active sites. The lower enhancement of propylene over the large-pore SSZ-33 additive was due to its high-hydrogen transfer activity. Gasoline quality was improved by the use of all additives, as octane rating increased by 7-12 numbers for all E-Cat/additives.",

keywords = "Catalytic cracking, FCC additive, Gasoline, Light olefins, Propylene",

author = "Siddiqui, \{M. A.B.\} and Aitani, \{A. M.\} and Saeed, \{M. R.\} and N. Al-Yassir and S. Al-Khattaf",

note = "Funding Information: The authors acknowledge the financial support provided by King Abdul Aziz City for Science and Technology (KACST) for this research under Refining \& Petrochemicals Program of the National Science, Technology \& Innovation Plan (NSTIP; 09-PETE85-4). We are also grateful for the support from Ministry of Higher Education, Saudi Arabia for establishing the Center of Research Excellence in Petroleum Refining \& Petrochemicals at Fahd University of Petroleum \& Minerals (KFUPM). The authors thank J. Cejka and M. Kubu for providing the zeolites TNU-9, SSZ-33, and Meso-Z. ",

year = "2011",

month = feb,

doi = "10.1016/j.fuel.2010.09.041",

language = "English",

volume = "90",

pages = "459--466",

journal = "Fuel",

issn = "0016-2361",

number = "2",

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T1 - Enhancing propylene production from catalytic cracking of Arabian Light VGO over novel zeolites as FCC catalyst additives

AU - Siddiqui, M. A.B.

AU - Aitani, A. M.

AU - Saeed, M. R.

AU - Al-Yassir, N.

AU - Al-Khattaf, S.

N1 - Funding Information: The authors acknowledge the financial support provided by King Abdul Aziz City for Science and Technology (KACST) for this research under Refining & Petrochemicals Program of the National Science, Technology & Innovation Plan (NSTIP; 09-PETE85-4). We are also grateful for the support from Ministry of Higher Education, Saudi Arabia for establishing the Center of Research Excellence in Petroleum Refining & Petrochemicals at Fahd University of Petroleum & Minerals (KFUPM). The authors thank J. Cejka and M. Kubu for providing the zeolites TNU-9, SSZ-33, and Meso-Z.

PY - 2011/2

Y1 - 2011/2

N2 - The catalytic cracking of vacuum gas oil over fluid catalytic cracking (FCC) catalyst containing novel additives was investigated to enhance propylene yield. A conventional ZSM-5, mesoporous ZSM-5 (Meso-Z), TNU-9 and SSZ-33 zeolite were tested as additives to a commercial equilibrium USY FCC catalyst (E-Cat). Their catalytic performance was assessed in a fixed-bed micro-activity test unit (MAT) at 520 °C and various catalyst/oil ratios. The cracking activity of all E-Cat/additives did not decrease by using these additives. The highest propylene yield of 12.2 wt.% was achieved over E-Cat/Meso-Z compared with 9.0 wt.% each over E-Cat/ZSM-5 and E-Cat/TNU-9, at similar gasoline yield penalty. The enhanced production of propylene over Meso-Z is attributed to its mesopores that suppressed secondary and hydrogen transfer reactions and offered easier transport and accessibility to active sites. The lower enhancement of propylene over the large-pore SSZ-33 additive was due to its high-hydrogen transfer activity. Gasoline quality was improved by the use of all additives, as octane rating increased by 7-12 numbers for all E-Cat/additives.

AB - The catalytic cracking of vacuum gas oil over fluid catalytic cracking (FCC) catalyst containing novel additives was investigated to enhance propylene yield. A conventional ZSM-5, mesoporous ZSM-5 (Meso-Z), TNU-9 and SSZ-33 zeolite were tested as additives to a commercial equilibrium USY FCC catalyst (E-Cat). Their catalytic performance was assessed in a fixed-bed micro-activity test unit (MAT) at 520 °C and various catalyst/oil ratios. The cracking activity of all E-Cat/additives did not decrease by using these additives. The highest propylene yield of 12.2 wt.% was achieved over E-Cat/Meso-Z compared with 9.0 wt.% each over E-Cat/ZSM-5 and E-Cat/TNU-9, at similar gasoline yield penalty. The enhanced production of propylene over Meso-Z is attributed to its mesopores that suppressed secondary and hydrogen transfer reactions and offered easier transport and accessibility to active sites. The lower enhancement of propylene over the large-pore SSZ-33 additive was due to its high-hydrogen transfer activity. Gasoline quality was improved by the use of all additives, as octane rating increased by 7-12 numbers for all E-Cat/additives.

KW - Catalytic cracking

KW - FCC additive

KW - Gasoline

KW - Light olefins

KW - Propylene

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DO - 10.1016/j.fuel.2010.09.041

M3 - Article

AN - SCOPUS:78649753499

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VL - 90

SP - 459

EP - 466

JO - Fuel

JF - Fuel

IS - 2

ER -

Enhancing propylene production from catalytic cracking of Arabian Light VGO over novel zeolites as FCC catalyst additives

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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