Abstract:
It has been discovered that less expensive, and in some cases synergistically effective anti-static additive blends may be added to hydrocarbon fuels to improve the conductivity thereof. The blend includes an anti-static amount of at least one hydrocarbon soluble copolymer of an alkylvinyl monomer and a cationic vinyl monomer and an anti-static amount of at least one hydrocarbon soluble polysulfone copolymer of at least one olefin and sulfur dioxide. Optional ingredients include polymeric polyamines and aryl sulfonic acids.
Abstract:
This invention relates to a process for reducing the level of pollutants in the exhaust of a diesel engine, comprising: operating said diesel engine using as the fuel a water-diesel fuel emulsion; and contacting the exhaust gas from said diesel engine with an after-treatment such as a filter.
Abstract:
This invention relates to a fuel oil composition having improved cold-flow properties and comprising a cold flow additive and streams from various pipestills of a petroleum crude refinery process: a) a relatively heavy fraction from a catalytically cracked heavy gasoil in turn derived from an atmospheric or vacuum pipestill, said fraction having a boiling range of 170 to 380 DEG C in an amount of 3 to 20 % by weight and b) a gasoil product from an atmospheric pipestill, said product having a boiling range of 225 to 360 DEG C in an amount of 30-50 % by weight, whereby components (a) and/or (b) is at least partially replaced by at least one relatively light naphtha fraction (c) from the atmospheric or vacuum pipestills, fraction (c) having a boiling range of 130 to 235 DEG C and being present in an amount of 3 to 20 % by weight.
Abstract:
A biodiesel may be prepared using an admixture of petroleum diesel and an algal derived hydrotreated renewable diesel which can be treated with petroleum diesel cold flow additives. The resulting diesel fuel may be employed even in cold climates despite the high paraffin content and high degree of saturation of the hydrotreated renewable diesel component of the fuel.
Abstract:
L'invention concerne l'utilisation dans un distillât hydrocarboné de température d'ébullition comprise entre 150 et 450°C et de température de cristallisation commençante mesurée par Analyse Calorimétrique Différentielle supérieure ou égale à -50C préférablement de -5°C à +10°C, d'un homopolymère obtenu à partir d'un ester oléfïnique d'acide carboxylique de 3 à 12 atomes de carbone et d'un alcool gras comprenant une chaîne de plus de 16 atomes de carbone et éventuellement une double liaison oléfïnique, comme composé pour révéler l'efficacité des additifs de filtrabilité à base de copolymère et/ou tert-polymères d'éthylène et d'ester vinylique d'un acide carboxylique de 3 à 12 atomes de carbone et d'un mono alcool comprenant de 1 à 10 atomes de carbone. L'invention vise aussi une composition d'additif comprenant un additif classique de filtrabilité des hydrocarbures en combinaison avec un révélateur d'efficacité ainsi que les combustibles, carburant et fioul comprenant ces combinaisons d'additifs.