Read e-book online Deactivation and Testing of Hydrocarbon-Processing Catalysts PDF

By Paul O'Connor, Toru Takatsuka, Geoffrey L. Woolery

ISBN-10: 0841215839

ISBN-13: 9780841215832

ISBN-10: 0841234116

ISBN-13: 9780841234116

content material: Philosophical review of trying out / Paul O'Connor, Geoffrey L. Woolery, and Toru Takatsuka --
benefits, chances, and boundaries of small-scale trying out of catalysts for fixed-bed approaches / S.T. Sie --
comparing pore constitution and morphology of hydrocarbon-conversion catalysts / R. Mann, ok. Khalaf, and A. Al-Lamy --
Deactivation of zeolite catalysts by means of coke / T. Masuda and okay. Hashimoto --
Modes of coking and deactivation of acid zeolite catalysts / M. Guisnet, P. Magnoux, and ok. Moljord --
Catalyst coking, activation, and deactivation / P.A. Sermon, M.S.W. Vong, and M. Matheson --
NMR ideas for learning the coking of zeolite-based catalysts / J.L. Bonardet, M.C. Barrage, and J. Fraissard --
Characterization of fluid catalytic cracking catalyst coke through ¹³C NMR and mass spectrometry / B.J. McGhee, J.M. Andresen, C.E. Snape, R. Hughes, C.L. Koon, and G. Hutchings --
Catalyst decay as a facet response of the chain techniques of catalytic cracking / B.W. Wojciechowski and N.M. Rice --
Catalyst deactivation in fluid catalytic cracking : a evaluate of mechanisms and checking out tools / Paul O'Connor, E. Brevoord, A.C. Pouwels, and H.N.J. Wijngaards --
Sodium deactivation of fluid catalytic cracking catalyst / Xinjin Zhao and Wu-Cheng Cheng --
Contaminant-metal deactivation and metal-dehydrogenation results in the course of cyclic propylene steaming of fluid catalytic cracking catalysts / Lori T. Boock, Thomas F. Petti, and John A. Rudesill --
Catalyst deactivation in adiabatic prereforming : experimental equipment and types for prediction of functionality / Thomas S. Christensen and Jens Rostrup-Nielsen --
Mechanism of deactivation in reforming catalysts at commence of run / Yaofang Liu, Guoqing Pan, and Jiujin Yang --
Catalyst deactivation in advertisement residue hydrodesulfurization / Hiroki Koyama, Eiichi Nagai, and Hideaki Kumagai --
Deactivation of sunshine naphtha aromatization catalyst / S. Fukase, N. Igarashi, okay. Aimoto, and ok. Kato --
impact of approach stipulations and catalyst homes on catalyst deactivation in residue hydroprocessing / M. Absi-Halabi and A. Stanislaus --
Catalyst deactivation in hydrodemetallization / J.P. Janssens, A.D. van Langeveld, S.T. Sie, and J.A. Moulijn --
job and coking fee of catalysts deactivated by means of fast-coking species further to the feed / Dady B. Dadyburjor, Zhenyu Liu, Shigeki Matoba, Shinichi Osanai, and Tetsuya Shirooka --
Pilot reactor trying out of the influence of naphtha boiling aspect in catalytic reforming / ok. Moljord, ok. Grande, I. Tanem, and A. Holmen --
Vanadium mobility in fluid catalytic cracking / Richard F. Wormsbecher, Wu-Cheng Cheng, Gwan Kim, and Robert H. Harding --
superior tools for trying out and assessing deactivation from vanadium interplay with fluid catalytic cracking catalyst / Bruce Lerner and Michel Deeba --
Riser simulator: trying out of adsorption results / Jacek Pruski, Ahmet Pekediz, and Hugo de Lasa --
improvement of a bench-scale fluid catalytic cracking microriser / M.P. Helmsing, M. Makkee, and J.A. Moulijn --
overview of coke selectivity of fluid catalytic cracking catalysts / E. Brevoord, A.C. Pouwels, F.P.P. Olthof, H.N.J. Wijngaards, and Paul O'Connor --
Correlation of catalyst functionality among laboratory assessments and advertisement devices for hydrotreating residual oil / Yoshimitsu Miyauchi, Takeshi Hashiguchi, Naoto Kimbara, and Katsuhisa Fujita --
existence trying out of sunshine hydrocarbon aromatization catalysts / okay. Hirabayashi, F. Igarashi, and T. Kondou --
functionality checking out of hydroconversion catalysts / W.H.J. Stork --
improvement of a try out approach to judge fluid catalytic cracking catalyst regenerability / V.L.N. Murthy, S. Debnath, M. Rama Rao, S.K. Ray, A.K. Das, and S. Ghosh --
A catalyst deactivation version for residual oil hydrodesulfurization and alertness to deep hydrodesulfurization of diesel gasoline / Toru Takatsuka, Yukitaka Wada, and Shin-ichi Inoue --
Modeling catalytic deactivation of benzene hydrogenation / Paul F. Meier and Marvin M. Johnson.

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Extra resources for Deactivation and Testing of Hydrocarbon-Processing Catalysts

Example text

The key to this analysis is the recognition that whatever the distribution of pore sizes is for each category of porosity (intra-particle, inter-pellet and intra-pellet) the actual amounts of pore volumes are integrals of those distributions. These take values specified by the density of the solid materials (zeolite, plus silica/alumina support) and the pore volumes per gm indicated by the porosimeter results in Figure 2. Thus the final penetration for the powder is the sum of inter-particle and intra-particle and intra-particle porosity.

MANN ET AL. Morplwlogy of Hydrocarbon-Conversion Catalysts 43 pores above 250A (ie. outside the range of gas adsorption) are irrelevant, but there are strong grounds for believing that pores in the range of 0. lm are important to transport and diffusion processes (1) and moreover, probably control the interaction of permeability and particle mechanical strength. It is therefore important to be able to measure, characterise and describe pores in this size range. Pore networks in 2-D and 3 -D are still being developed as computer-aided representations of real porous materials since the idea was first proposed some 40 years ago (2).

It can be seen that the deviations from the theoretical profile are within a few degrees centigrade, even in this demanding test case where the reaction heat is only of the order of 5 W at a temperature level of about 500 oc. Although a small adiabatic reactor can be constructed, isothermal reactors are in most cases preferred for small scale catalyst testing because of their greater simplicity. For processes operating in a relatively narrow range of temperatures, catalyst testing in an isothermal reactor at a temperature equal to the average tempe­ rature of an adiabatic one will in most cases be acceptable.

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Deactivation and Testing of Hydrocarbon-Processing Catalysts by Paul O'Connor, Toru Takatsuka, Geoffrey L. Woolery


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