Výsledky vyhledávání - "L. L. Murrell"

A ring structure model of the acid centers of amorphous silica-alumina catalysts

Publikováno v: Catalysis Letters. 2:329-333

Calcination of a 500 m2/g SiO2-Al2O3 co-gel from 350 to 875 °C leads to a constant ratio of Lewis-to-Bronsted sites over this temperature range. A model is proposed to account for this surprising result: a 3–4 member ring structure of SiO2 reacts

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::642944650f1d834e4995c14f184cacc0
https://doi.org/10.1007/bf00768174

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Narrow pore distribution formed in steam and CO2 gasified cokes of different origin

Autor: L. L. Murrell, A.F. Venero, L.G. Sherman, Nicholas C. Dispenziere, C.T. Ratcliffe, W.J.M. Pieters

Publikováno v: Carbon. 26:33-39

A new high resolution sorption (HRS) technique has been employed to characterize steam and/or CO2 gasified petroleum cokes, coal chars, and carbons derived from peat and bone char. A lignite gasified by mild oxidation in steam was also studied. We ha

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::299c5efce18ea48c4518e57d7804c73d
https://doi.org/10.1016/0008-6223(88)90006-1

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Catalytic gasification of graphite by: Tungsten, rhenium, and tungsten-rhenium

Autor: R.T.K. Baker, J.J. Chludzinski, N. C. Dispenziere, L. L. Murrell

Publikováno v: Carbon. 21:579-588

Controlled atmosphere electron microscopy examinations have shown that both tungsten and rhenium are active catalysts for the graphite-oxygen reaction, although the former exhibits only marginal activity. Of the two materials only rhenium is effectiv

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::d175574a08067ab47b66185e9c985d63
https://doi.org/10.1016/0008-6223(83)90242-7

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Dispersion of bulk silica onto alumina to form a dispersed, surface phase oxide structure

Autor: N. C. Dispenziere, L. L. Murrell, K. S. Kim

Publikováno v: Catalysis Letters. 2:263-271

Addition of colloidal silica to a porous alumina results in gelation onto the exterior surface of the alumina. Subsequent steam treatment with a high steam content allows silica to migrate into the pores of the alumina to form a surface phase oxide s

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::12548a483179240ee88a089e151e30cd
https://doi.org/10.1007/bf00770223

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