Abstract:
A process for the regeneration of a catalyst is presented. The catalyst is in a reactor for use in benzene alkylation, and periodically needs to be regenerated. The reactor is taken off-line, and a regenerant is passed through the reactor, producing an effluent stream. A portion of the effluent stream is recycled through the reactor without passing through a clean-up process.
Abstract:
A presente invenção revela um processo de obtenção compostos alquilaromáticos onde há maior seletividade para a produção de compostos monoalquilaromáticos pela seleção de catalisadores sólidos ácidos modificados num processo integrado que compreende a alquilação e transalquilação de compostos aromáticos e/ou poliaromáticos para a produção seletiva de compostos monoalquilaromáticos, bem como a regeneração ( in situ ) dos catalisadores sólidos ácidos selecionados para este processo. O processo da presente invenção possibilita a obtenção de compostos monoalquilados com altas taxas de conversão, seletividade e rendimento.
Abstract:
A linear alkylbenzene product and a linear alkylbenzene sulfonate product from a natural oil are provided. The linear alkylbenzene product comprises alkylbenzenes having the formula C 6 H 5 C n H 2n+1 wherein n is from 12 to 13; wherein the alkylbenzenes have at least 7 mass % modern carbon as measured by ASTM Method 6866; and wherein the alkyl group is a linear alkyl group for at least 80 mass % of the alkylbenzenes having the formula C 6 H 5 C n H 2n+1 wherein n is from 12 to 13.
Abstract translation:提供直链烷基苯产物和来自天然油的直链烷基苯磺酸盐产物。 直链烷基苯产物包含具有式C 6 H 5 C n H 2n + 1的烷基苯,其中n为12至13; 其中烷基苯具有通过ASTM方法6866测量的至少7质量%的现代碳; 并且其中所述烷基是至少80质量%的具有式C 6 H 5 C n H 2n + 1的烷基苯的直链烷基,其中n为12至13。
Abstract:
A method of producing from a biomass mesitylene-isopentane fuel is provided. A biomass may be fermented to form acetone. The acetone is converted in a catalytic reactor to mesitylene and mesityl oxide. The mesitylene is separated in a phase separator and the organic phase containing mesityl oxide is sent to a dehydration reactor, then to a demethylation reactor, and finally to a hydrogenation reactor from which isopentane is recovered. This isopentane is then mixed with the mesitylene to form the final mesitylene-isopentane fuel. The catalytic reaction with acetone employs catalysts of either niobium, vanadium or tantalum.
Abstract:
The invention relates to a method for producing alkyl aromatic compounds by reacting C3-30 olefins or alcohols, from which C3-30 olefins are formed under the reaction conditions, with an aromatic hydrocarbon in the presence of an alkylation catalyst. The reaction is carried out in a reactor cascade consisting of at least two reactors, whereby each of the reactors contain the alkylation catalyst, at least 80 % of the aromatic hydrocarbon is fed into the first reactor of the reactor cascade, and at least 40 % of the olefins are fed in an intermediate manner after the first reactor.
Abstract:
The invention relates to a method for producing alkylaryl sulfonates, the alkylaryl sulfonates obtained according to said method, alcohol mixtures and olefin mixtures obtained as intermediate products, alkylaromatic compounds obtained therefrom, the use of said alkylaryl sulfonates as surfactants, and detergents containing said surfactants.
Abstract:
A process for producing branched olefins from a mixed linear olefin/paraffin isomerisation feed comprising linear olefins having at least 7 carbon atoms in 5-50%w comprising in a first stage skeletally isomerising linear olefins in the isomerisation feed and in .a second stage separating branched and linear molecules wherein branched molecules are substantially olefinic and linear molecules are olefinic and/or paraffinic; novel stages and combinations thereof; apparatus therefor; use of catalysts and the like therein; and use of branched olefins obtained thereby.
Abstract:
Ionic liquids are immobilised on a functionalised support which carries or contains one component of the ionic liquid, or a precursor to such a component. The ionic liquid may be immobilised via the anion by treating a support with an anion source, e.g. an inorganic halide, before the ionic liquid is applied or formed. Alternatively the ionic liquid may be immobilised by having the cation covalently bound to the support, e.g. through silyl groups, or incorporated in the support by synthesising the support in the presence of a suitable base. The immobilised ionic liquids are of use as catalysts for example for the Friedel-Crafts reaction.
Abstract:
The invention provides and alkyl benzene and a drilling fluid derived from vinylidene. The vinylidene may be derived from olefins by dimerization. The olefins may be Fischer-Tropsch olefins.
Abstract:
Compositions comprising one or more amphiphilic compounds formed from lightly branched olefins may comprise: a reaction product of one or more lightly branched olefins, in which the reaction product comprises a hydrophobic portion and a hydrophilic portion comprising a polar head group bonded to the hydrophobic portion. An olefin moiety in each of the one or more lightly branched olefins undergoes a reaction to become saturated and to produce at least part of the hydrophobic portion. The one or more lightly branched olefins have a Branch Index ranging from 0.5 to 2.1 and branching is retained in the hydrophobic portion of the reaction product.