Publications

@article{nokey,

title = {Oxidative Dehydrogenation of Butane Using Membrane Reactors},

author = {C. Téllez and M. Menéndez and J. Santamaría},

doi = {10.1002/aic.690430322},

issn = {00011541},

year  = {1997},

date = {1997-01-01},

journal = {AIChE Journal},

volume = {43},

issue = {3},

abstract = {The oxidative dehydrogenation of butane was studied at temperatures between 450 and 550°C using a conventional fixed-bed reactor and inert membrane catalytic reactors with different feed arrangements. When inert membrane reactors were employed, a ceramic membrane was used to distribute oxygen to a fixed bed of V-Mg-O catalyst. The membrane reactor was found to be more efficient than a fixed-bed reactor under most of the conditions investigated. In addition, in the membrane reactor the formation of hot spots decreased considerably, leading to a more stable and safer operation.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Pina1997,

title = {Control de VOCs mediante combustion catalitica},

author = {M. P. Pina and S. Irusta and M. Menendez and J. Santamaria},

issn = {02102064},

year  = {1997},

date = {1997-01-01},

journal = {Ingenieria Quimica},

volume = {29},

issue = {333},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Marco1997b,

title = {Early detection of runaway reactions in systems with gas evolution using on-line mass spectrometry},

author = {E. Marco and J. A. Peña and J. Santamaría},

doi = {10.1016/S0009-2509(97)00120-6},

issn = {00092509},

year  = {1997},

date = {1997-01-01},

journal = {Chemical Engineering Science},

volume = {52},

issue = {18},

abstract = {A new method for carly detection of runaway reactions in closed vessels is proposed. The method is based on continous monitoring of the gas phase composition using on-line mass spectrometry, and can be used in reactions yielding gaseous products. The method has been applied to the study of the decomposition of organic peroxides (dicumyl peroxide and di-tert-butyl peroxide) in a RSST unit, and found to be faster and more reliable than traditional methods based on monitoring the temperature of the liquid phase.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Ramos1996,

title = {Oxidation of hydrocarbons in an in situ redox fluidized bed reactor},

author = {R Ramos and J Herguido and M Menéndez and J Santamaría},

url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0000985831&partnerID=MN8TOARS},

year  = {1996},

date = {1996-01-01},

journal = {Journal of Catalysis},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Hydrogenation of acetylene over Ni/NiAl2O4 catalyst: Characterization, coking, and reaction studies},

author = {J A Peña and J Herguido and C Guimon and A Monzón and J Santamaría},

url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-24044453763&partnerID=MN8TOARS},

year  = {1996},

date = {1996-01-01},

journal = {Journal of Catalysis},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Miguel1996,

title = {Methane oxidative coupling over different alkalidoped catalysts: A comparison of ceramic membrane reactors and conventional fixed bed reactors},

author = {M. P. Miguel and J. Coronas and M. Menéndez and J. Santamaria},

doi = {10.1007/BF02068124},

issn = {01331736},

year  = {1996},

date = {1996-01-01},

journal = {Reaction Kinetics and Catalysis Letters},

volume = {59},

issue = {2},

abstract = {Methane oxidative coupling has been carried out over Li/MgO, Li/Sn/MgO, Li/Na/MgO, Li/La/MgO, Na/Sm 2 O 3 , NaCl/CsCl/MgO and Na/W/Mn/SiO 2 catalysts, using a fixed bed reactor and an inert ceramic membrane reactor in which the membrane acted as an oxygen distributor to the catalytic bed. In most cases, the ceramic membrane reactor provided a significantly higher selectivity than the fixed bed reactor, at the same conversion level. © Akadémiai Kiadó, Budapest. All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Romero1996,

title = {Coking kinetics of a Cr2O3/Al2O3 catalyst during 1-butene dehydrogenation: Effect of H2 partial pressure},

author = {E Romero and J C Rodríguez and J A Peña and A Monzón},

url = {https://onlinelibrary.wiley.com/doi/abs/10.1002/cjce.5450740630},

doi = {https://doi.org/10.1002/cjce.5450740630},

year  = {1996},

date = {1996-01-01},

journal = {The Canadian Journal of Chemical Engineering},

volume = {74},

issue = {6},

pages = {1034-1038},

abstract = {Abstract The influence has been studied of the partial pressure of hydrogen (0–30 kPa) upon the coking rate of a Cr2O3/Al2O3 commercial catalyst during 1-butene dehydrogenation. Coke deposition has been analysed using a monolayer-multilayer reversible coke growth model (MMRC model). This model provides good fits to the experimental data, within the range of partial pressure of H2 studied, and allows us to estimate the main kinetic parameters involved in the coking-deactivation process. The results obtained reveal a dual effect of hydrogen: competition against 1-butene for the active sites and the removal of coke precursors from the catalyst surface. Bom effects diminish the coking rate as the H2 partial pressure is increased.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Herguido1995,

title = {Characterization of porous ceramic membranes for their use in catalytic reactors for methane oxidative coupling},

author = {J Herguido and D Lafarga and M Menéndez and J Santamaría and C Guimon},

url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-0002757759&partnerID=MN8TOARS},

doi = {10.1016/0920-5861(95)00110-2},

year  = {1995},

date = {1995-01-01},

journal = {Catalysis Today},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Coronas1995,

title = {The porous-wall ceramic membrane reactor: an inherently safer contacting device for gas-phase oxidation of hydrocarbons},

author = {J. Coronas and M. Menéndez and J. Santamaría},

doi = {10.1016/0950-4230(95)00010-X},

issn = {09504230},

year  = {1995},

date = {1995-01-01},

journal = {Journal of Loss Prevention in the Process Industries},

volume = {8},

issue = {2},

abstract = {The porous-wall ceramic membrane reactor (PWCMR) is a new type of contacting device, which has proved very efficient for some gas-phase hydrocarbon oxidations. In addition, this reactor presents significant advantages from the safety point of view. Some of these are discussed in this paper, and experimental results are presented which show that the PWCMR can be operated in a safer and more easily controllable way than a conventional fixed-bed reactor. © 1995.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Finol1995,

title = {An Experimental Study of Methane Oxidative Coupling Iin Fixed Bed Reactors with a Distributed Oxygen Feed},

author = {C. Finol and M. Menendez and A. Monzon and J. Santamaria},

doi = {10.1080/00986449508936346},

issn = {15635201},

year  = {1995},

date = {1995-01-01},

journal = {Chemical Engineering Communications},

volume = {135},

issue = {1},

abstract = {Methane oxidative coupling has been carried out in a reactor with a distributed oxygen feed. The system consists of a catalytic bed of Li/MgO in a quartz reactor with one inlet for methane and one or more inlets for oxygen. To enable the comparison between the co-fed mode and the distributed feed mode, an especial experimental design was used in order to maintain the same contact time in the co-fed and in the distributed feed modes, and in order to minimize the temperature gradients caused by the exothermic oxidation process. The results clearly show that a distributed oxygen feed may give rise to significant increases in the hydrocarbon selectivity obtained at a given methane conversion. © 1995, Taylor & Francis Group, LLC. All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Kinetic modelling of the deactivation of a commercial silica—alumina catalyst during isopropylbenzene cracking},

author = {J. C. Rodríguez and J. A. Peña and A. Monzón and R. Hughes and K. Li},

doi = {10.1016/0923-0467(94)02879-F},

issn = {09230467},

year  = {1995},

date = {1995-01-01},

journal = {Chemical Engineering Journal and the Biochemical Engineering Journal},

volume = {58},

issue = {1},

abstract = {In the deactivation of commercial catalysts by coke formation, complete deactivation of the catalyst is seldom observed and frequently a certain lower activity level is maintained. In the present work, several kinetic models that predict partial catalyst deactivation have been analysed. The presence of active sites with different strengths on the catalyst surface and reversible coke formation have been considered as possible causes of the residual activity of the catalyst. In order to check these kinetic models, they have been applied to the isopropylbenzene cracking reaction over silica-alumina catalyst. From the results obtained, the model which gave the best fit to the experimental data was that of reversible coke deposition. © 1995, All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Influence of the catalyst pretreatment on the relative rates of the main and coking reactions during acetylene hydrogenation on a NiO/NiAl2O4 catalyst},

author = {J A Peña and J C Rodríguez and J Herguido and J Santamaría and A Monzón},

url = {http://www.scopus.com/inward/record.url?eid=2-s2.0-4243324327&partnerID=MN8TOARS},

doi = {10.1016/S0167-2991(08)62787-1},

year  = {1994},

date = {1994-01-01},

journal = {Studies in Surface Science and Catalysis},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{nokey,

title = {Comments on a one-parameter model of catalyst deactivation for FCC modelling},

author = {M. Menèndez},

doi = {10.1016/0009-2509(94)85076-3},

issn = {00092509},

year  = {1994},

date = {1994-01-01},

journal = {Chemical Engineering Science},

volume = {49},

issue = {9},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Santos1994,

title = {Catalytic partial oxidation of methane to synthesis gas in a ceramic membrane reactor},

author = {A. Santos and J. Coronas and M. Menéndez and J. Santamaría},

doi = {10.1007/BF00813685},

issn = {1011372X},

year  = {1994},

date = {1994-01-01},

journal = {Catalysis Letters},

volume = {30},

issue = {1-4},

abstract = {Methane has been selectively converted to synthesis gas using a two-zone fixed bed of a Ni/Al 2 O 3 catalyst inside a modified ceramic membrane. The first zone of the reactor was surrounded by an impervious wall, and therefore behaved as a conventional fixed bed reactor. In the second zone, some of the reaction products could preferentially diffuse out of the reactor, which yielded higher than equilibrium methane conversions. The influence of the different operating conditions has been studied, and the performance of the membrane reactor has been compared to that of a fixed bed reactor. The membrane reactor has also been used at pressures above atmospheric (2 bar), with good conversions and selectivities. © 1995 J.C. Baltzer AG, Science Publishers.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Lafarga1994,

title = {Methane oxidative coupling using porous ceramic membrane reactors-I. reactor development},

author = {D. Lafarga and J. Santamaria and M. Menéndez},

doi = {10.1016/0009-2509(94)80083-9},

issn = {00092509},

year  = {1994},

date = {1994-01-01},

journal = {Chemical Engineering Science},

volume = {49},

issue = {12},

abstract = {A new reactor concept has been developed and tested for the conversion of methane into ethane, ethylene and higher hydrocarbons via oxidative coupling. The basic idea consist of providing a low oxygen concentration in the reactor in order to increase hydrocarbon selectivity. To this end, oxygen is supplied to the reacting mixture by permeation through a porous wall, which is capable to withstand the temperatures and pressures involved, and at the same time give adquate values of oxygen flux. In this part, the main requirements of this type of reactor are discussed, as well as some operational constraints. The modifications carried out on the starting ceramic membranes are described and their properties are characterized at different stages of the process. © 1994.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Santos1994b,

title = {Partial oxidation of methane to carbon monoxide and hydrogen in a fluidized bed reactor},

author = {A. Santos and M. Menéndez and J. Santaríana},

doi = {10.1016/0920-5861(94)80170-3},

issn = {09205861},

year  = {1994},

date = {1994-01-01},

journal = {Catalysis Today},

volume = {21},

issue = {2-3},

abstract = {A fluidized bed reactor has been used to investigate the partial oxidation of methane to syngas over a NiO/NiAl 2 O 4 catalyst. The axial concentration profiles of the different species along the bed have been determined and related to the observed temperature profiles. The amount of carbon deposited on the catalyst under different operating conditions has also been determined. The results show that under suitable conditions, the bubbling fluidization regime gives a stable reactor performance with high conversion and selectivity, and a limited amount of carbon formation. © 1994.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Coronas1994,

title = {Development of ceramic membrane reactors with a non-uniform permeation pattern. Application to methane oxidative coupling},

author = {J. Coronas and M. Menendez and J. Santamaria},

doi = {10.1016/S0009-2509(05)80056-9},

issn = {00092509},

year  = {1994},

date = {1994-01-01},

journal = {Chemical Engineering Science},

volume = {49},

issue = {24 PART A},

abstract = {A modified porous ceramic microfiltration membrane has been used as an oxygen distributor to a fixed bed catalytic reactor for methane oxidative coupling. For the first time, in this work the pore structure along the membrane has been altered, in order to attain a controlled, non-uniform pattern of oxygen permeation, which is shown to have significant advantages for the reaction investigated. The different permeation arrangements employed have been characterized, and compared in terms of the conversion and selectivity achieved. © 1995 Elsevier Science Ltd All rights reserved.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}

@article{Coronas1994b,

title = {Methane oxidative coupling using porous ceramic membrane reactors-II. Reaction studies},

author = {J. Coronas and M. Menéndez and J. Santamaria},

doi = {10.1016/0009-2509(94)80084-7},

issn = {00092509},

year  = {1994},

date = {1994-01-01},

journal = {Chemical Engineering Science},

volume = {49},

issue = {12},

abstract = {In Part I of this work a new reactor concept was presented for methane oxidative coupling. It consisted of a microfiltration ceramic membrane which had been modified to be used as an oxygen distributor for methane oxidative coupling in a fixed-bed catalytic reactor. In this work, the reactor developed in Part I has been tested under reaction conditions. The main operating variables such as the methane to oxygen ratio, residence time and reactor configuration have been investigated, and the performance of the membrane reactor presented in this work has been compared to that obtained in a conventional quartz reactor with cofeeding of methane and oxygen. The results show that the use of a porous ceramic membrane to effect the oxygen distribution can significantly improve the selectivity obtained at a given methane conversion. © 1994.},

keywords = {},

pubstate = {published},

tppubtype = {article}

}