Abstract:
Method for the removal and recovery of the oily component from cuttings coming from the drilling of oil wells by treatment of the cuttings with a solvent, which can be compressed to the liquid state, at a pressure value ranging from 45 to 80 bar and a temperature corresponding to the saturation value.
Abstract:
An essentially hydrocarbon composition comprising a refinery liquid fuel and from 1 to 25% by weight of a medium distillate essentially without alcoholic oxygen obtained starting from the product of a Fischer-Tropsch-type synthesis. This composition surprisingly has enhanced lubricating properties with respect to both of the original components and can advantageously be used as a fuel for Diesel or turbine engines, with an evident decrease in wear of the mobile parts in contact therewith.
Abstract:
Hydrocarbons are prepared, which are liquid at the reaction temperature, by feeding synthesis gas into three-phase turbulent reactors in which the solid phase, consisting of the catalyst in the form of particles, is kept in suspension in the liquid phase by the rising synthesis gas. The reaction product is extracted in continuous, together with the catalyst dispersed therein, and sent to a separation section which comprises a primary filtration unit and a micro/ultra-filtration unit.
Abstract:
The present invention relates to a catalytic composition which comprises a beta zeolite, a metal of group VIII, a metal of group VI B and optionally one or more oxides as carrier. The catalytic system of the present invention can be used for the hydrotreating of hydrocarbon mixtures and more specifically in the upgrading of hydrocarbon mixtures having boiling ranges within the range of 35null to 250null C., containing sulfur impurities, i.e. in hydrodesulfuration with contemporaneous skeleton isomerization and a reduced hydrogenation degree of olefins contained in said hydrocarbon mixtures, the whole process being carried out in a single step.
Abstract:
Method for the removal and recovery of the oily component from cuttings coming from the drilling of oil wells by treatment of the cuttings with a solvent, which can be compressed to the liquid state, at a pressure value ranging from 45 to 80 bar and a temperature corresponding to the saturation value.
Abstract:
A process is described for the contemporaneous preparation of mesitylene and durene, characterized in that mesitylene and durene are obtained exclusively starting from pseudo-cumene without the use of any further chemical compound, operating in continuous, at a temperature ranging from 210 to 400null C., at a pressure ranging from 1 to 50 bar, with a weight space velocity ranging from 0.1 to 20 hoursnull1 and in the presence of a catalyst based on crystalline metal-silicates in acid form. After the recovery of mesitylene and durene from the reaction raw product, some of the remaining components of the raw product itself are recycled and fed to the reactor together with the pseudo-cumene.
Abstract:
Process for recovering and moving refinery tar by the formation of oil in water dispersions of the above tar, the above dispersions having a water content of at least 20% by weight, and the dispersing agent being selected from salts of alkaline metals and ammonium, and relative mixtures, of the condensates of naphthalenesulfonic acid with formaldehyde, which comprises: a) fluidification of the tar by heating to a temperature at least equal to its softening point; b) mixing the tar thus fluidified with the desired quantity of water and dispersing agent until an oil in water dispersion is formed; c) recovery and moving of the tar in the form of the oil in water dispersion formed in step (b).
Abstract:
A process is described for the synthesis of mesitylene, characterized in that mesitylene is obtained starting exclusively from pseudocumene, without the use of any other chemical compound, operating in continuous, at a temperature ranging from 225 to 400null C., at a pressure ranging from 1 to 50 bar, at a weight space velocity ranging from 0.1 to 10 hoursnull1, and in the presence of a catalyst containing a zeolite selected from ZSM-5 zeolite having a crystal lattice based on silicon oxide and aluminum oxide, and ZSM-5 zeolite modified by the partial or total substitution of Si with a tetravalent element such as Ti or Ge and/or the partial or total substitution of Al with other trivalent elements, such as Fe, Ga or B.
Abstract:
Process for recovering and moving refinery tar by the formation of oil in water dispersions of the above tar, the above dispersions having a water content of at least 20% by weight, and the dispersing agent being selected from salts of alkaline metals and ammonium, and relative mixtures, of the condensates of naphthalenesulfonic acid with formaldehyde, which comprises: a) fluidification of the tar by heating to a temperature at least equal to its softening point; b) mixing the tar thus fluidified with the desired quantity of water and dispersing agent until an oil in water dispersion is formed; c) recovery and moving of the tar in the form of the oil in water dispersion formed in step (b).
Abstract:
Catalyst for steam cracking reactions consisting of pure mayenite having the general formula:12CaO.7Al2O3having an X-ray diffraction spectrum as indicated in Table I, obtained with a preparation process comprising the following steps: dissolution of salts containing calcium and aluminum with water; completing of the dissolved salts by means of polyfunctional organic hydroxyacids; drying of the solution resulting from the completing in order to obtain a solid precursor product; calcination of the solid precursor product at a temperature ranging from 1300 to 1400null C. for at least two hours.
Abstract translation:用于蒸汽裂解反应的催化剂,其由具有以下通式的纯钙铝石组成:具有表C所示的X射线衍射光谱的12CaO.7Al 2 O 3,其制备方法包括以下步骤:用水溶解含钙和铝的盐; 通过多官能有机羟基酸完成溶解的盐; 干燥由此完成的溶液,以获得固体前体产物; 在1300〜1400℃的温度下煅烧固体前体产物至少2小时。