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Monday, July 27, 2020 | History

2 edition of Catalytic conversion of oxygenated compounds to low molecular weight olefins found in the catalog.

Catalytic conversion of oxygenated compounds to low molecular weight olefins

Rayford G. Anthony

Catalytic conversion of oxygenated compounds to low molecular weight olefins

by Rayford G. Anthony

  • 176 Want to read
  • 19 Currently reading

Published by Dept. of Energy, for sale by the National Technical Information Service] in [Washington], [Springfield, Va .
Written in English

    Subjects:
  • Methanol,
  • Carbon disulfide,
  • Catalysts

  • Edition Notes

    Statementby Rayford G. Anthony, Department of Chemical Engineering, Texas A&M University ; prepared for the U.S. Department of Energy
    SeriesCOO ; 4717-2
    ContributionsUnited States. Dept. of Energy, Texas A & M University. Dept. of Chemical Engineering
    The Physical Object
    Paginationv. :
    ID Numbers
    Open LibraryOL14877857M

      molecular hydrogen transfer followed by Ã-scission and termination. In general, thermal cracking is more difficult in HDPE followed by LDPE and finally by PP. Due to the low thermal conductivity of polymers together with the endotherm of cracking, thermal pyrolysis consumes large amounts of energy. Thus, catalytic   BACKGROUND. 1. Field of Invention. This invention teaches ambient pressure catalytic alkylation of organic compounds, comprising alcohols, alkanes, glycols, ethers, aldehydes, ketones, carboxylic acids, esters, amines, thiols or phosphines, by alkyl groups produced from alcohols or glycols forming products comprising ethers and other higher molecular weight alkylated compounds at a reflux

    This article reviews recent studies on oligomerization of olefins catalyzed by transition metal complexes. Ni, Pd, and Fe complexes, having a ligand with a similar structure to the ethylene Ex situ catalytic pyrolysis of biomass using char-supported nanoparticles metals (Fe and Ni) catalyst for syngas production and tar decomposition was investigated. The characterizations of fresh Fe-Ni/char catalysts were determined by TGA, SEM–EDS, Brunauer–Emmett–Teller (BET), and XPS. The results indicated that nanoparticles metal substances (Fe and Ni) successfully impregnated into

    Low-molecular-weight structures of soil organic matter have been shown to form at low temperatures (e C) from amino acid pyrolysis (Sharma et al., ) and char materials (Norwood et al The chemical industry is one of the largest of all U.S. industries, with sales in of $ billion and employment of million. 1 It is one of the nations's few industries that produces a favorable trade balance; the United States now exports chemical products amounting to almost twice the value of those that it imports (exports of roughly $37 billion compared to imports valued at about


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Catalytic conversion of oxygenated compounds to low molecular weight olefins by Rayford G. Anthony Download PDF EPUB FB2

Catalytic conversion of oxygenated compounds to low molecular weight olefins. Annual report for January Decem Annual report for January Decem Full Record Get this from a library. Catalytic conversion of oxygenated compounds to low molecular weight olefins.

[Rayford G Anthony; Texas A & M University. Department of Chemical Engineering.; United States. Department of Energy.]   The catalytic conversion of glycerol to olefins is relatively a new potential process that can be further explored.

Olefin was obtained as one of the byproducts along with paraffin, acetaldehyde, acetone, 2-propanol, acids, C 5 + BTX, other CHO and coke in the process of glycerol dehydration to obtain acrolein [4].

On the other hand, some research groups have reported that the yield of AH from catalytic pyrolysis of lignin gradually increased with increasing pyrolysis temperature because low molecular weight compounds (e.g., H 2, C 1 –C 3 compounds, or olefin) can be converted to AH at higher temperatures.

In this study, the yield of total AH as   Such results indicated that, on average, the molecular weight distribution in lower temperature fractions was lower than that of higher temperature fractions. The MG and D1 obtained from pyrolysis at °C had higher molecular weight compared to that of MG and D1 from pyrolysis at °C and from catalytic :// Inventors: Walker, H W Publication Date: Tue Jun 02 EDT OSTI Identifier: Patent Number(s): US Assignee: Ethyl Corp., Richmond, VA Most of the papers contained in this volume are based on pres­ entations made at the symposium on Catalytic Conversions of Synthesis Gas and Alcohols to Chemicals, which was held at the 17th Middle At­ lantic Regional Meeting of the American Chemical Society, April, in the setting of the Pocono Hershey Resort, White Haven, ://   1.

Introduction. Residual lignocellulosic biomass is a renewable, low price resource, which could be used for the production of energy, transportation fuels and chemicals.The pyrolysis of this biomass allows obtaining up to 70 wt.% of a liquid product named bio-oil, which is a very complex mixture of oxygenated compounds (oxygen, more than 40 wt.%) and water (more than 15 wt.%).

Whereas bio-oil from pyrolysis is a complex mixture of more than highly oxygenated compounds and can contain up to 50 weight percent (wt %) water (13, 14), the liquid product from catalytic conversion of sorbitol or glucose over Pt-Re/C contains a well-defined mixture of hydrophobic species.

Moreover, we have demonstrated additional   Mono-Olefins: Chemistry and Technology is a translation from the German and deals with the study of olefins from low ethylene to hexenes and olefins from the high hexenes to eicosenes.

The book describes the gaseous or low-boiling olefins and the higher, normally liquid olefins (which have only a minor role in applications in the chemical @article{osti_, title = {Production of diesel fuel from light olefins}, author = {Tabak, S.A.

and Krambeck, F.J.}, abstractNote = {Mobile Research and Development Corporation has developed a catalytic process for converting light olefinic compounds to high quality gasoline and distillate.

The process has been named Mobil Olefin to Gasoline and Distillate (MOGD) :// The hydrogenation of carbon monoxide to produce low-molecular-weight olefins (C/sub 2/-C/sub 4/) has been investigated over unsupported iron-manganese catalysts.

It was found that a catalyst with approximately 2 parts of manganese per parts of iron was effective in modifying the activity and selectivity of unsupported iron catalysts for the   The extent of bio-oil catalytic conversion can be estimated by observing the total yield of oxygenated compounds, which decreased to about half of the yield in the thermal-only pyrolysis when the catalyst was present at Cat/Oilfor both biomasses, thus suggesting high :// Disclosed are methods and systems for converting chloromethane to olefins.

A method includes contacting an aluminosilicate catalyst having a chabazite zeolite structure with a feed that includes an alkyl halide and is substantially free of oxygenates under reaction conditions sufficient to produce an olefin hydrocarbon product comprising C 2 -C 4 :// Low-carbon light olefins are the basic feedstocks for the petrochemical industry.

Catalytic cracking of crude bio-oil and its model compounds (including methanol, ethanol, acetic acid, acetone Catalytic Conversion of Alcohols to Olefins.- Conversion of Methanol to Hydrocarbons on Heteropoly Compounds.- Formaldehyde from Methanol.- Catalytic Conversions of Methanol to Chloromethanes.- Alkylation of N- and O-Heteroatom Compounds with Alcohols, with Special Reference to the Synthesis of Alkylamines.- Appendices.- :// A reactor sequencing technique is useful for multi-stage hydrocarbon conversion systems employing a number of fixed bed catalytic reactors at various process temperatures and catalytic activity levels.

An apparatus for oligomerizing lower olefins (e.g., C 2 -C 6) is disclosed wherein catalyst partially inactivated in a primary stage is employed to effect conversion at higher temperature in a @article{osti_, title = {Chemistry of catalytic hydrocarbon conversions}, author = {Pines, H.}, abstractNote = {The catalytic conversion of hydrocarbons is used for the production of both high octane gasoline and petrochemicals.

The chapters are arranged according to the type of catalyst used in the various reactions. Chapters cover: acid-catalyzed reactions, base-catalyzed reactions   A process is disclosed for fluid catalytic cracking of oxygenated hydrocarbon compounds such as glycerol and bio-oil.

In the process the oxygenated hydrocarbon compounds are contacted with a fluid cracking catalyst material for a period of less than 3 A process for the preparation of lower olefins from methanol or dimethyl ether by catalytic conversion at from ° to ° C. in two stages over borosilicate zeolites, wherein C 2 -C 4 -olefins and C 1 -C 4 -paraffins are removed after the first reaction stage, the C 5 + hydrocarbons are passed to the second reaction stage, the aromatics are removed from the reaction product of the second.

Catalytic conversion of olefins to higher hydrocarbons: Owen et al. / Heat exchange technique for olefin fractionation and catalytic conversion system: Wright et al. / Use of liquefied propane and butane or butane recycle to control heat of reaction of converting olefins to gasoline and The molecular weight of these compounds was adjusted to the jet fuel range by aldol condensation and hydroxyalkylation reactions.

Furanics can also serve as a source of aromatics for the jet fuel pool. As demonstrated by Chang et al., dymethylfuran can be converted into p-xylene by cycloaddition with ethylene. This technology achieves the Highly efficient catalytic conversion of chloromethane to light olefins over HSAPO as studied by catalytic testing and in situ FTIR Article in Journal of Catalysis (1) February