Institution
Mobil
About: Mobil is a based out in . It is known for research contribution in the topics: Catalysis & Zeolite. The organization has 7085 authors who have published 10642 publications receiving 237497 citations. The organization is also known as: Socony-Vacuum Oil Company & Standard Oil Company of New York.
Topics: Catalysis, Zeolite, Fluid catalytic cracking, Alkyl, Hydrocarbon
Papers published on a yearly basis
Papers
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19 Feb 1981TL;DR: In this paper, a catalytic process is provided for converting gaseous feedstocks containing ethane to liquid aromatics by contacting the feedstock in the absence of added air or oxygen, under conversion conditions.
Abstract: A catalytic process is provided for converting gaseous feedstocks containing ethane to liquid aromatics by contacting said gaseous feeds in the absence of added air or oxygen, under conversion conditions, with a crystalline zeolite catalyst having incorporated therein a minor amount of gallium, thereby converting the ethane in the feedstock to aromatics and recovering a liquid mixture of benzene, toluene and xylene.
84 citations
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30 Sep 1981TL;DR: In this paper, an improved hydrocarbon separation process by the selective sorption properties of certain members of a novel class of zeolites is provided, which is characterized by a silica to alumina mole ratio greater than 12 and a Constraint Index within the approximate range of greater than about 2 to about 12.
Abstract: An improved hydrocarbon separation process by the selective sorption properties of certain members of a novel class of zeolites is provided. The novel class of zeolites is characterized by a silica to alumina mole ratio greater than 12 and a Constraint Index within the approximate range of greater than about 2 to about 12. The process of this invention involves selective separation of higher molecular weight hydrocarbon compounds in admixture with lower molecular weight hydrocarbon compounds within a homolgous series by contacting the respective mixture with a zeolite having a SiO 2 /Al 2 O 3 mole ratio of at least about 12 and a Constraint Index with the approximate range of greater than 2 to about 12, to effect the selective sorption of said higher molecular weight hydrocarbon compounds by said zeolite.
84 citations
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04 May 1995TL;DR: A plastic reclosable fastener with a slider is presented in this paper for plastic bags and the like, where a structure (16, 17, 18, 19) is provided below the interlocking elements of the fastener, which when engaged by the slider can control the opening and closing of the Interlocking elements.
Abstract: A plastic reclosable fastener (11) with slider (10) particularly suited for plastic bags and the like where in the reclosable fastener (11) is provided with structure (16, 17, 18, 19) located below the interlocking elements (14, 15) of the fastener (11) which when engaged by the slider (10) controls the opening and closing of the interlocking elements (14, 15) of the fastener (11).
84 citations
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22 Apr 1977TL;DR: In this paper, a method for synthesizing zeolite ZSM-5 in the presence of one or more diamines and with a specifically defined reaction mixture composition is presented.
Abstract: As synthesized by conventional technique, zeolite ZSM-5 is crystallized in the presence of substantial amount of tetraalkylammonium cations, the alkyl groups of which contain 2 to 5 carbon atoms, such as, for example, tetrapropylammonium. When synthesized in the conventional way, ZSM-5 contains tetraalkylammonium cations as well as substantial amount of sodium ions. To obtain a more catalytically active form of ZSM-5, the sodium ions must be exchanged to very low levels. By synthesizing zeolite ZSM-5 according to the present method, i.e. in the presence of one or more diamines and with a specifically defined reaction mixture composition, ZSM-5 having different organic nitrogen-containing cations but the same crystal structure as conventionally prepared ZSM-5 is obtained. The ZSM-5 prepared in accordance hereto is very low in sodium content as synthesized.
84 citations
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TL;DR: In this article, the crystal structure of a high silica zeolite ZSM-39, unit cell composition excluding residual water and occluded materials, was determined by X-ray powder diffraction.
Abstract: The crystal structure of a high silica zeolite ZSM-39, unit cell composition excluding residual water and occluded materials—(Na, tetramethylammonium ion, tetraethylammonium ion)0.4 (AlO2)0.4 (SiO2)135.6, was determined by X-ray powder diffraction. The framework is pseudoface-centred, pseudocubic with a = 19.36±0.02 A and ideal symmetry Fd3m. The framework consists of a space-filling arrangement of pentagonal dodecahedra and hexakaidecahedra and is isostructural with the 17 A cubic gas hydrate. The ZSM-39 framework is composed entirely of five- and six-rings which limits its sorptive and exchange properties. However, the large fraction of five-rings and the high Si/Al ratio (>40) impart a high thermal stability. ZSM-39 containing no aluminium constitutes the end member composition. Although ZSM-39 is the only synthetic zeolite analogue of a gas hydrate, we propose here two related hypothetical frameworks containing pentagonal dodecahedral cages.
84 citations
Authors
Showing all 7085 results
Name | H-index | Papers | Citations |
---|---|---|---|
Galen D. Stucky | 144 | 958 | 101796 |
James A. Russell | 124 | 1024 | 87929 |
Thomas Bein | 109 | 677 | 42800 |
George J. Hirasaki | 65 | 278 | 14164 |
Kai-Kit Wong | 61 | 605 | 14680 |
James Paul | 59 | 252 | 13394 |
Sankaran Sundaresan | 58 | 241 | 10083 |
Fabio Rocca | 57 | 325 | 19186 |
Roland Winston | 55 | 473 | 13911 |
Kyger C. Lohmann | 54 | 144 | 10112 |
Maurice A. Biot | 50 | 154 | 37311 |
Kenneth E. Peters | 48 | 171 | 13920 |
Paul L. Stoffa | 47 | 260 | 9323 |
Clarence D. Chang | 47 | 239 | 9047 |
Bruce H. Wilkinson | 45 | 118 | 6483 |