Abstract:
Reaction products of amino-alkylenecarboxylic acids with polyoxyalkylene compounds are used as paraffin dispersants for mineral oil middle distillates.
Abstract:
Polylactone aromatic esters having the formula: ##STR1## wherein R.sub.1 is a hydrocarbyl group having a sufficient number of carbon atoms to render the compound soluble in hydrocarbons boiling in the gasoline or diesel fuel range;R.sub.2 is an alkylene group of about 2 to 5 carbon atoms;R.sub.3 and R.sub.4 are each independently hydrogen, hydroxy, nitro, amino, N-alkylamino having 1 to 6 carbon atoms in the alkyl group, or N,N-dialkylamino having 1 to 6 carbon atoms in each alkyl group, provided that R.sub.3 and R.sub.4 may not both be hydrogen;and x is an integer from 1 to 25.The polylactone aromatic esters of formula I are useful as fuel additives for the prevention and control of engine deposits.
Abstract translation:具有下式的聚内酯芳族酯:其中R1是具有足够数目碳原子的烃基,以使化合物溶于汽油或柴油燃料范围内沸腾的烃中; R2是约2至5个碳原子的亚烷基; R 3和R 4各自独立地为氢,羟基,硝基,氨基,烷基中具有1至6个碳原子的N-烷基氨基或每个烷基具有1至6个碳原子的N,N-二烷基氨基,条件是R3和R4 可能不是氢; 并且x是1至25的整数。式I的聚内酯芳族酯可用作预防和控制发动机沉积物的燃料添加剂。
Abstract:
Compounds of general formula (I) wherein X and Y are the same or different and are selected from the group consisting of SO.sub.3 (--), --CO--, --C(O)O(--), --R.sup.4 --C(O)O--, --NR.sup.3 C(O)--, --R.sup.4 O--, --R.sup.4 --C(O)O--, --R.sup.4 -- and --NC(O)--, R.sup.4 being --(CH.sub.2).sub.m -- where m is from 0 to 5 and R.sup.3 is defined below; X.sup.1 and Y.sup.1 are the same or different and are selected from the group consisting of (a), R.sup.1 and R.sup.2 being independently selected from the group consisting of alkyl, alkoxy alkyl or polyalkoxyalkyl groups that contain at least 10 carbon atoms in their main chain, and R.sup.3 being a hydrocarbyl group, each R.sup.3 in a compound of formula (I) being the same of different; A is, together with the carbon atoms with which it constitutes the ring structure in formula (I), an aromatic, non-aromatic, or aliphatic group, where any of such groups can be mono- or polycyclic and/or can include one or more hetero atoms selected from nitrogen, sulphur and oxygen; and Z is selected from nitro, hydroxy, alkyl, alkoxy, carboxy acid and carboxy ester, and their use as low temperature flow improvers for distillate fuels.
Abstract:
Combinations of dimercaptothiadiazole-mercaptan coupled derivatives with amines have been found to be effective load-carrying additives for lubricants and fuels.
Abstract:
Catalytic clean-combustion-promoter compositions for use with finished gasoline or diesel fuels in compression ignition engines and spark ignition engines improve fuel efficiency and reduce air polluting emissions. The compositions utilize ketones as solvents, alcohols as cosolvents, nitroparaffin compounds as combustion supporters, and, to promote the chemical reactions, a catalytic medium is used. When the additive compositions are employed in microvolumetric concentrations ranging from 670 to 1,350 parts per million by volume of engine fuel, the chemical bonding of the carbon molecules with the oxygen molecules is increased during the combustion process, thus, producing a synergistic effect, which increases the combustion characteristic of the fuels to be burned and reduces the tendency of the fuel to create deposits, and therefore reduces the CO.sub.2 and NO.sub.X emissions, and increases the fuel economy. Engines operating with the present compositions added to the fuel do not require the use of fuels with a high cetane or octane number for maximum performance. The present chemical clean-combustion-promoter compounds meet the standards of the EPA "Clean Air Act" as amended in 1990 for emissions from liquid hydrocarbon fuels.
Abstract:
Polyalkyl nitro and amino aromatic esters having the formula: ##STR1## wherein A.sub.1 is nitro, amino, N-alkylamino wherein the alkyl group contains 1 to 6 carbon atoms, or N,N-dialkylamino wherein each alkyl group independently contains 1 to 6 carbon atoms; R.sub.1 and R.sub.2 are independently hydrogen, hydroxy, lower alkyl having 1 to 6 carbon atoms, or lower alkoxy having 1 to 6 carbon atoms; R.sub.3 is a polyalkyl group having a weight average molecular weight in the range of about 450 to 5,000; and x is an integer from 0 to 10.The polyalkyl nitro and amino aromatic esters of formula I are useful as fuel additives for the prevention and control of engine deposits.
Abstract translation:具有下式的聚烷基硝基和氨基芳香酯:其中A1是硝基,氨基,其中烷基含有1至6个碳原子的N-烷基氨基或N,N-二烷基氨基,其中每个烷基独立地包含1 至6个碳原子; R 1和R 2独立地是氢,羟基,具有1至6个碳原子的低级烷基或具有1至6个碳原子的低级烷氧基; R3是重均分子量在约450至5,000范围内的聚烷基; 并且x是0至10的整数。式I的多烷基硝基和氨基芳族酯可用作预防和控制发动机沉积物的燃料添加剂。
Abstract:
Petroleum derived fuel compositions of improved efficiency for use with finished gasoline and diesel fuels in compression ignition engines and spark ignition engines include a catalytic clean-combustion-promoter composition to improve fuel efficiency and reduce their air polluting effects. The catalytic clean-combustion-promoter compositions utilize ketones as solvents, alcohols as cosolvents, ethers as octane supporters, nitroparaffin compounds as combustion supporters, and, to promote the chemical reactions a catalytic medium is used in combination with aromatic amines. When all the compounds are combined in the recited quantities, the molecular structure and surface tension of the fuel is transformed through chemical bonding to produce a synergistic effect, which increases the combustion characteristic of the fuels to be burned and reduces the tendency of the fuel to create deposits, and therefore reduces the exhaust emissions. Engines operating with the catalytic clean-combustion-promoter compositions added to the fuel do not require the use of fuels with a high cetane or octane number for maximum performance. Such compositions may be employed in micro-amount ranging from 400 to 2,500 parts per million relative to the volume of the basic liquid of engine fuel. The present catalytic clean-combustion-promoter compounds meet the standards of the EPA "Clean Air Act" as amended in 1990.
Abstract:
A method is disclosed for the pretreatment of olefinic hydrocarbon feedstock to remove conjugated dienes and/or basic nitrogen compounds that deactivate acidic catalyst particles used in olefin conversion processes by reacting the dienes with one or more dienophiles to form the corresponding Diels-Alder adduct, followed by catalytic conversion of the olefinic hydrocarbon feedstock containing the adduct. The formation of the Diels-Alder adduct essentially eliminates the role of dienes in the feedstock as catalyst deactivating agents. When maleic anhydride (MA) is employed as the dienophile, basic nitrogen reacts with maleic anhydride, or with the tetrahydrophthalic anhydride adduct, to lower the amount of catalyst deactivating basic nitrogen compounds in the feedstock. Where the olefin conversion process comprises etherification of isoolefins with alkanol in a C.sub.4 + or C.sub.5 + olefinic hydrocarbon feedstream to produce a gasoline boiling range product enriched in oxygen and rich in high octane value alkyl tertiary alkyl ethers, it has been discovered that the adduct, particularly those adducts formed with MA, is in the gasoline boiling range and contributes usefully to the oxygen enrichment of the gasoline and to octane value.
Abstract:
Liquid petroleum products are marked with markers having the formula: ##STR1## where the Ws are selected from O--(C.sub.1 -C.sub.3 alkyl) and hydrogen, provided that at least one W is O--(C.sub.1 -C.sub.3 alkyl), the Xs and Ys are the same or different and are selected form hydrogen, alkyl, substituted alkyl, alkenyl, substituted alkenyl, aryl, substituted aryl, fused aryl, substituted fused aryl, halogen, nitro, cyano, and alkoxy.