Influence of clay binder on the liquid phase hydroisomerization of n-octane over palladium-containing zeolite catalysts

Lucas, Antonio de; Sánchez, Paula; Fúnez, Antonia; Ramos, María Jesús; Valverde, J.L.

doi:10.1016/j.molcata.2006.06.020

Cited by 26 publications

(14 citation statements)

References 38 publications

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“…However, binders can affect the physicochemical properties of catalyst and these changes can have a strong influence on the catalytic activity and selectivity [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Influence of Catalyst Binders on the Acidity and Catalytic Performance of HZSM-5 Zeolites for Methanol-to-Propylene (MTP) Process: Single and Binary Binder System

Lee

Ihm

2009

Top Catal

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The effect of the binders, such as silica, alumina, and aluminum phosphate solution (APS), was studied on the acidity and catalytic performance of HZSM-5 zeolite (SiO 2 /Al 2 O 3 = 80) in methanol-to-propylene (MTP) process. The strong acidity of catalyst increased slightly with alumina binder but decreased with silica and APS binders. It is noted that the catalyst with APS binder showed the highest bulk crush strength. Catalytic performance of the alumina or silica bound catalyst was comparable to that of pure HZSM-5 catalyst while that of APS bound catalyst was completely different depending on the binder content. Low content (10 wt%) of APS resulted in a dramatically enhanced propylene selectivity ([40 C mol%) due to the decrease in strong acidity. On the other hand with high content ([20 wt%) of APS, methanol was mostly dehydrated into dimethylether without further transformation into hydrocarbons even if the mechanical strength was significantly improved. The binary binder system was proposed not only to improve the mechanical strength of catalyst with small amount of APS binder but also to keep a high propylene selectivity. The catalyst bound with APS-and-alumina or APS-and-silica showed a comparable propylene selectivity to that of HZSM-5 with the 10 wt% of APS single binder while demonstrated much higher bulk crush strengths.

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“…However, binders can affect the physicochemical properties of catalyst and these changes can have a strong influence on the catalytic activity and selectivity [9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

Influence of Catalyst Binders on the Acidity and Catalytic Performance of HZSM-5 Zeolites for Methanol-to-Propylene (MTP) Process: Single and Binary Binder System

Lee

Ihm

2009

Top Catal

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“…Mordenite is least effective in the reactions under study: the product yields in hydroisomerizations of n paraffins C 7 -C 8 on catalysts of the type of platinum (or palladium) on mordenite were below 55 wt % [14][15][16].…”

Section: Zeolite Catalysts Having No Molecular Sieve Propertiesmentioning

confidence: 97%

Hydroisomerization of long-chain paraffins: Mechanism and catalysts. Part I

Nikiforov¹,

Фадеев²,

Loginova³

et al. 2015

Catal. Ind.

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A review of the literature on the catalysts of hydroisomerization of long chain paraffins is pre sented. Part I describes the mechanisms of paraffin hydroisomerizations and presents an analysis of data on the catalysts of hydroisomerization based on zeolites of various types. Part II is devoted to catalysts based on structured mesoporous materials, partially reduced molybdenum oxides and oxycarbides, and mixtures of tungsten and zirconium oxides. Industrial catalysts that have found use in isodewaxing of diesel fuels and oils are described.

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“…수첨업그레이딩 반응에서 수소화 /탈수소화 반응에는 백금과 팔라듐 등의 귀금속을 담지한 촉매가 Ni, Mo, Co 및 W과 같은 전이금속을 담지한 촉매보다 높은 활성을 보 인다 [11][12][13][14][15][16]. 탄소-탄소 결합의 분해 반응인 접촉분해 공정 및 골격 이성화 공정에는 제올라이트 촉매를 주로 사용한다 [9,[17][18][19][20][21][22][23][24][25].…”

Section: 분해반응과 이성화반응이 동시에 일어나는 수첨업그레이딩 반응의 Iso-파라핀의 선택도는 주로 금속과 산 기능의unclassified

A Study of Pt-Mg/Mesoporous Aluminosilicate Catalysts for Synthesis of Jet-fuel from n-Octadecane

Jung¹,

Kim

Jeon

2016

Korean Chemical Engineering Research

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− Platinum catalysts supported on the mesoporous material synthesized from Y zeolite were applied to synthesis of jet-fuel through n-octadecane hydroupgrading. The mesoporous aluminosolicate, MMZ HY was synthesized using Y zeolite as its framework source. The effect of the addition of Mg to Pt/MMZ HY catalyst for n-octadecane hydroupgrading was investigated. Catalyst characterization was performed with X-ray diffraction, N 2 adsorption, temperature-programmed reduction in hydrogen flow, temperature-programmed desorption of ammonia, and infrared spectroscopy of adsorbed pyridine. The high yield of jet-fuel over the PtMg(2.0)/MMZ HY can be attributed not only to the higher dispersion of Pt metal and higher reducibility, but also the higher amount of acid sites and higher strength of acid sites. The selectivity to iso-paraffin in the jet-fuel fraction could be reached above 80% over the optimized PtMg/MMZ HY catalyst.

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Influence of clay binder on the liquid phase hydroisomerization of n-octane over palladium-containing zeolite catalysts

Cited by 26 publications

References 38 publications

Influence of Catalyst Binders on the Acidity and Catalytic Performance of HZSM-5 Zeolites for Methanol-to-Propylene (MTP) Process: Single and Binary Binder System

Influence of Catalyst Binders on the Acidity and Catalytic Performance of HZSM-5 Zeolites for Methanol-to-Propylene (MTP) Process: Single and Binary Binder System

Hydroisomerization of long-chain paraffins: Mechanism and catalysts. Part I

A Study of Pt-Mg/Mesoporous Aluminosilicate Catalysts for Synthesis of Jet-fuel from n-Octadecane

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