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977 results about "Cycloalkane" patented technology

In organic chemistry, the cycloalkanes (also called naphthenes, but distinct from naphthalene) are the monocyclic saturated hydrocarbons. In other words, a cycloalkane consists only of hydrogen and carbon atoms arranged in a structure containing a single ring (possibly with side chains), and all of the carbon-carbon bonds are single. Cycloalkanes are named analogously to their normal alkane counterparts of the same carbon count: cyclopropane, cyclobutane, cyclopentane, cyclohexane, etc. The larger cycloalkanes, with more than 20 carbon atoms are typically called cycloparaffins.

Liquid fuel compositions

The present invention provides a liquid fuel composition comprising a distillation fraction of a component having at least one C4+ compound derived from a water-soluble oxygenated hydrocarbon prepared by a method comprising:
    • providing water and a water-soluble oxygenated hydrocarbon comprising a C1+O1+ hydrocarbon in an aqueous liquid phase and/or a vapor phase;
    • providing H2;
    • catalytically reacting in the liquid and/or vapor phase the oxygenated hydrocarbon with the H2 in the presence of a deoxygenation catalyst at a deoxygenation temperature and deoxygenation pressure to produce an oxygenate comprising a C1+O1-3 hydrocarbon in a reaction stream; and
    • catalytically reacting in the liquid and/or vapor phase the oxygenate in the presence of a condensation catalyst at a condensation temperature and condensation pressure to produce the C4+ compound,
    • wherein the C4+ compound comprises a member selected from the group consisting of C4+ alcohol, C4+ ketone, C4+ alkane, C4+ alkene, C5+ cycloalkane, C5+ cycloalkene, aryl, fused aryl, and a mixture thereof;
wherein the liquid fuel composition is selected from:
  • a gasoline composition having an initial boiling point in the range of from 15° C. to 70° C. (IP123), a final boiling point of at most 230° C. (IP123), a RON in the range of from 85 to 110 (ASTM D2699) and a MON in the range of from 75 to 100 (ASTM D2700);
  • a diesel fuel composition having an initial boiling point in the range of from 130° C. to 230° C. (IP123), a final boiling point of at most 410° C. (IP123) and a cetane number in the range of from 35 to 120 (ASTM D613); and
  • a kerosene composition having an initial boiling point in the range of from 80 to 150° C., a final boiling point in the range of from 200 to 320° C. and a viscosity at −20° C. in the range of from 0.8 to 10 mm2/s (ASTM D445).
  • Owner:SHELL USA INC

    Method of Converting Triglycerides to Biofuels

    ActiveUS20080071125A1Improve chemical and physical and combustion qualityImprove thermal stabilityFatty acid chemical modificationBiofuelsIsomerizationPtru catalyst
    A triglyceride-to-fuel conversion process including the steps of (a) preconditioning unsaturated triglycerides by catalytic conjugation, cyclization, and cross-link steps; (b) contacting the modified triglycerides with hot-compressed water containing a catalyst, wherein cracking, hydrolysis, decarboxylation, dehydration, aromatization, or isomerization, or any combination thereof, of the modified triglycerides produce a crude hydrocarbon oil and an aqueous phase containing glycerol and lower molecular weight molecules, and (c) refining the crude hydrocarbon oil to produce various grades of biofuels. A triglyceride-to-fuel conversion process further including the steps of (a) carrying out anaerobic fermentation and decarboxylation/dehydration, wherein the anaerobic fermentation produces hydrogen, volatile acids, and alcohols from fermentable feedstocks, and the decarboxylation/dehydration produces alkenes from the volatile acids and alcohols, respectively; (b) feeding the alkenes to the cyclization process; (c) feeding the hydrogen to the post refining process; and (d) recycling the aqueous phase containing glycerol to the decarboxylation/dehydration process. A biofuel composition including straight-chain, branched and cyclo paraffins, and aromatics. The paraffins are derived from conversion of triglycerides. The aromatics are derived from conversion of either triglycerides, petroleum, or coal.
    Owner:APPLIED RES ASSOCS INC

    Hydrocracking catalyst and preparation method thereof

    The invention discloses a hydrocracking catalyst and a preparation method thereof. The hydrocracking catalyst comprises: a carrier composed of a modified beta molecular sieve, a modified Y type molecular sieve and alumina, and hydrogenation active metal components. Specifically, the modified beta molecular sieve is prepared by: subjecting a crystallized beta molecular sieve slurry directly to ammonium exchange and a template agent removal treatment, then first conducting a hydrothermal treatment, and performing an aluminum salt solution treatment, under the condition of maintaining a high beta molecular sieve crystallinity, removing part of non-framework aluminum uniformly, thus obtaining the beta molecular sieve with the characteristics of high Si / Al ratio, large specific surface area, appropriate acidity and acid distribution, and reasonable structure, etc. The modified beta molecular sieve especially has a suitable cracking effect and a very good isomerization effect on long-chain alkane and the long side chain alkyl of aromatic hydrocarbon and cyclane, and has a synergistic effect with the Y type molecular sieve, so that the hydrocracking catalyst can have very high catalytic activity and middle distillate selectivity. And the condensation point of diesel fraction is substantially reduced, and the product properties of middle distillate are improved.
    Owner:CHINA PETROLEUM & CHEM CORP +1

    High octane number gasolines and their production using a process associating hydro-isomerization and separation

    The invention provides a high octane number gasoline pool comprises at least 2% of di-branched paraffins containing 7 carbon atoms, and a process for producing this gasoline pool by hydro-isomerizing a feed constituted by a C5 to C8 cut which comprises at least one hydro-isomerization section and at least one separation section, in which the hydro-isomerization section and at least one separation section, in which the hydro-isomerization section comprises at least one reactor. The separation section comprises at least one unit and produces at least two streams: a first stream which is rich in di- and tri-branched paraffins, and possibly in naphthenes and aromatic compounds which is sent to the gasoline pool; and in a first version of the process, a second stream is produced which is rich in straight-chain and mono-branched paraffins which is recycled to the inlet of the hydro-isomerization section, while in a second version of the process, a second flux is produced which is rich in straight-chain paraffins which is recycled to the inlet of a first hydro-isomerization section and a third stream is produced which is rich in mono-branched paraffins which is recycled to the inlet of a second hydroisomerization section.
    Owner:INST FR DU PETROLE

    Integrated process for production of high octane gasoline, high aromatic naphtha and high cetane diesel from high aromatic middle distillate range streams

    An integrated process for production of ultra low sulfur products of high octane gasoline, high aromatic naphtha and high Cetane Diesel from high aromatic middle distillate range streams from any cracker units such as Light Cycle Oil (LCO) stream of Fluid catalytic cracking (FCC) units and comprising of subjecting the feed boiling between 200 to 400° C. and having at least 30 wt % multi-ring aromatics content subjected to hydrotreating for removal of heteroatoms like sulfur and nitrogen and at a pressure sufficient only for saturation of one ring of multi-ring aromatics. The effluent from hydrotreating is subjected to hydrocracking at same pressure of hydrotreating step above for selective opening of saturated ring of multi-ring aromatics. The effluent from hydrocracking is separated in CUT-1 boiling between 35 to 70° C., CUT-2 boiling between 70 to 200° C. in which the monoaromatics and alkylated monoaromatics are concentrated and CUT-3 boiling above 200° C. in which concentration of saturates i.e. paraffins and naphthenes significantly increased. The CUT-3 is selectively oxidized in selective oxidation step in presence of catalyst, an oxidizing agent and operating conditions such that it results in diesel product with more enhanced Cetane.
    Owner:INDIAN OIL CORPORATION

    Novel compound and applications thereof, and organic electroluminescent device using compound

    The present invention relates to a novel organic compound and applications thereof, and an organic electroluminescent device using the compound, wherein the compound has a structure represented by thefollowing formula defined in the specification, wherein Y<1>, Y<2> and Y<3> are respectively and independently selected from H and B, at most one of Y<1>, Y<2> and Y<3> is H, X<1>, X<2> and X<3> arerespectively and independently selected from N and H, at most one of X<1>, X<2> and X<3> is H, X<4>, X<5> and X<6> are respectively and independently selected from H, a single bond, O, S and CR, R<1>-R<18> are respectively and independently selected from hydrogen, deuterium, substituted or unsubstituted C1-C36 alkyl, substituted or unsubstituted C6-C48 monocyclic aromatic hydrocarbon or fused ringaromatic hydrocarbon, and substituted or unsubstituted C3-C48 monocyclic heteroaromatic hydrocarbon or fused ring heteroaromatic hydrocarbon, and the two adjacent groups in R<1>-R<18> can be bonded to form C1-C10 cycloalkane, C6-C30 aromatic hydrocarbon or C5-C30 heteroaromatic hydrocarbon. According to the present invention, with the application of the compound as the light emitting layer material in an OLED device, the compound exhibits excellent device performance and excellent stability. The present invention further discloses an organic electroluminescent device using the compound represented by the general formula.
    Owner:TSINGHUA UNIV
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