Evolution of refining and petrochemicals. What is the place of zeolites

Abstract

Résumé -Évolution du raffinage et de la pétrochimie. Place des zéolithes -Dans une première partie, cet article décrit l'évolution passée (sur les deux ou trois dernières décennies) du raffinage et de la pétrochimie et tente de dégager les principales tendances de leur évolution à moyen et long terme. Il décrit ensuite les principaux défis que cette évolution place sur la route des acteurs du raffinage et de la pétrochimie. Dans une seconde partie, il présente le marché des catalyseurs de ces deux domaines et le compare à celui des catalyseurs en général. Il présente ensuite le marché des zéolithes quelles que soient leurs applications industrielles (détergents, adsorption ou catalyse) et décline l'ensemble de ces applications en raffinage et pétrochimie. Il décrit l'évolution prévisible du marché des zéolithes et tente de dégager quelques directions possibles de progrès pour les zéolithes dans les activités de catalyse et adsorption appliquées au raffinage et à la pétrochimie.Mots-clés : raffinage, pétrochimie, procédés catalytiques, hydrogène, soufre, dioxyde de carbone (CO 2 ), aromatiques, marché des catalyseurs, marché des zéolithes (dans les détergents, comme catalyseurs et comme adsorbants). Abstract -Evolution of Refining and Petrochemicals: What is the Place of Zeolites -The first part of this paper presents the evolution of the refining and petrochemical industries during the last two or three decades and the principal trends of their evolution in the medium

Evaluation of calcined hydrocalumite-type materials as supports of CoMo and NiMo for thiophene hydrodesulfuration reaction

“…Figure 3 shows the XRD patterns of CoMo/(HC or HC 420) catalytic precursors. Several oxidic phases such as MoO 3 (Figure 4) XRD patterns of CoMo and NiMo supported on HC or HC 420 were quite similar. Therefore, from this technique point of view there are not differences due to the additional calcination procedure.…”

“…The wide band in 3500-3600 cm -1 can be also associated OH-groups and/or to the ν(OH) mode ascribed to interlayer water molecules located in the hydrocalumite interlaminar region 10 . A band at 1622 cm -1 confirmed the water presence; while the band at 1022 cm -1 has been assigned to OH -groups of Ca(OH) 2, this band is more pronounced when it is determined by Raman spectroscopy is characteristic of O-C-O vibrations of CO 3 2-anions adsorbed on the hydrocalumite 11 . When the hydrocalumite is calcined (HT 420), the FT-IR spectrum is changed.…”

“…New legislations have been advanced in order to impose minimum sulfur contents in fossil fuels. A possibility to produce better catalysts is the use of new supports which should render more active and cheaper catalysts than those currently employed 3 . In this way, hydrotalcite-type materials, whose structure is similar to hydrocalumite-types, have been studied as HDT catalyst supports, especially, those synthesized with Al and Mg 4,5 ; however, Ca-Al hydrocalumite-type solids have not been documented for this purpose.…”

Petroleum and Refining Engineering- Brief Review on Few Key Aspects

“…In their studies, they lumped the parameters in to C 1 , C 2 , C 3 , C 4 , C 5 , p (paraffin), n (naphthene), a (aromatic) and H 2. According to studies carried out by Marcilly, zeolitic catalysts contribute substantially to refining and petrochemicals [23]. Also he pointed that development of any new process always comes up against the unavoidable need to be profitable and competitive.…”

A Review on Petroleum Refining and Petrochemical Processes with Special Emphasis on Catalysts and Flue Gas Treatment Technology

“…This will make it possible to increase high-quality fuels production in shortest time with relatively low capital expenditures. Marcilly studied the importance of zeolites in the modern refining and petrochemical evolution [15]. He presented the evolution of the refining and petrochemical industries during the last two or three decades and the principal trends of their evolution in the medium and long run.…”