Influence of the Addition of a Second Metal on the Catalytic Performance of Pt-Beta Agglomerated Catalyst in the Hydroisomerization of n-Octane

Ramos, María Jesús; Jiménez, Vicente; Fúnez, Antonia; Romero, Amaya; Sánchez, Paula; Valverde, J.L.

doi:10.1007/s10562-008-9572-8

Cited by 13 publications

(4 citation statements)

References 28 publications

(38 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Thermocouple type K was used for monitoring the temperature of the bed . The benzene was supplied by a HPLC pump, − using He as inert carrier gas. Helium flow rate was controlled by mass controllers (Brooks Instruments, model 5850).…”

Section: Methodsmentioning

confidence: 99%

Pilot Plant Scale Synthesis of CNS: Influence of the Operating Conditions

Jiménez

Muñoz

Sánchez

et al. 2012

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

The present work was an in-depth study related to synthesis of carbon nanospheres (CNSs) at different scales (lab and pilot) with the end goal to economize the production of these materials on a large scale. Synthesis of large amounts of CNSs relies on the careful control of the operating conditions such as space velocity (helium flow rate), hydrocarbon (benzene) content in feed stream, and synthesis time. The alteration of these variables caused important changes in both the yield and properties of the obtained materials. In general, characterization results of the synthesized CNSs demonstrated that they showed low BET surface area and pore volume values typical of spherical geometrical bodies, good thermal stability, and good crystallinity. Normally, CNSs are presented as conglomerates as consequence of the accretion via the carbon atoms at the edge of the "curling" graphitic flakes. Finally, results demonstrated a successful scale up, obtaining a CNSs yield at pilot scale considerably superior (factor of 3.9) to that obtained at laboratory scale.

show abstract

Section: Methodsmentioning

confidence: 99%

Pilot Plant Scale Synthesis of CNS: Influence of the Operating Conditions

Jiménez

Muñoz

Sánchez

et al. 2012

Ind. Eng. Chem. Res.

Self Cite

View full text Add to dashboard Cite

show abstract

“…In the hydrocatalytic transformation of the individ ual n paraffins C 7 -C 10 on the Pt/H Y and Pt/H β catalysts, the maximum yield of hydroisomerized prod ucts was 65-70 wt % [14][15][16][18][19][20][21][22]; in the hydroi somerization of the individual n paraffins C 14 -C 16 on the Pt/H β catalyst, it decreased to 40-45 wt % [18]. To obtain higher yields and decrease the fraction of hydrocracking reactions, it is necessary to use the cat alysts possessing molecular sieve properties [14].…”

Section: Zeolite Catalysts Having No Molecular Sieve Propertiesmentioning

confidence: 99%

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

Nikiforov¹,

Фадеев²,

Loginova³

et al. 2015

Catal. Ind.

View full text Add to dashboard Cite

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.

show abstract

“…A variety of adsorbents have been investigated as potential CO2 adsorption materials including microporous and mesoporous materials such as metal aluminum silicates, aluminum phosphates and metal organic frameworks (MOFs). [2][3][4][5][6][7][8][9][10][11][12][13] In contrast to the tetrahedral building blocks in zeolites which are silicons or aluminum oxides, MOFs can be comprised of inorganic clusters (e.g. square-shaped, trigonal, tetrahedral and octahedral) and organic linkers (e.g.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of carbon dioxide on MIL53(Al), CuBTC and K- NaX zeolite

Çakıcıoğlu-Özkan

2020

iij

View full text Add to dashboard Cite

CO2 adsorption on K exchanged NaX zeolites, and metal organic frameworks (MOFs), namely Cu-BTC and MIL53 (Al) was studied at 5 °C and 25 °C. Exchange via ultrasonic and traditional methods, was conducted at 50 °C and 70 °C. The maximum replacement of Na+ ion with K+ ion in the extra framework of zeolite was increased from 76% to 83% with increasing temperature from 50 °C to 70 °C in the ultrasonic method which is more effective than traditional one. Compared with the zeolites, the MOF adsorbents used in this work have higher Langmuir specific surface area values namely 1278, 1473 and about 1000 m2/g for MIL 53, Cu-BTC and zeolite adsorbents respectively. The resulting CO2 isotherms can be well represented by the Toth equation. Comparison of the isosteric heat of adsorption at zero loading shows that CO2 was adsorbed more weakly on MOFs than zeolites.

show abstract

Influence of the Addition of a Second Metal on the Catalytic Performance of Pt-Beta Agglomerated Catalyst in the Hydroisomerization of n-Octane

Cited by 13 publications

References 28 publications

Pilot Plant Scale Synthesis of CNS: Influence of the Operating Conditions

Pilot Plant Scale Synthesis of CNS: Influence of the Operating Conditions

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

Adsorption of carbon dioxide on MIL53(Al), CuBTC and K- NaX zeolite

Contact Info

Product

Resources

About