Abstract: The methods of the invention are aimed toward the determination of corrosivity, ageing, fingerprinting and contaminants, as well as the functional diagnosis, decontamination, depolarization and detoxification of oils and technical fluids, such as mineral insulating, natural and/or synthetic esters, lubricants, hydraulic fluids, diathermic fluids and technical fluids in general, used in apparatuses and equipment, such as electric transformers, reactors, bushings, switches and turbines, for the generation, transmission, distribution and use of power.

Abstract: A method includes pouring in a container a sample of oil and a pre-established amount of a solution suitable for extracting the acid fraction of the sample; stirring the content of the container and waiting for the separation from the sample of an extract phase. A titrant solution of KOH is dosed in the extract phase until an acid-base indicator present therein changes color. The TAN is calculated on the basis of the volume of dosed titrant solution according to the formula: TAN (mgKOH/goil)=(V×56.1×M)/m wherein V is the volume of dosed titrant solution expressed in ml, 56.1 is the molecular weight of KOH, M is the titre of the KOH solution expressed in moles per litre and m is the mass of the sample expressed in g.

Abstract: A modular plant, including at least one basic module is suitable for converting carbonaceous matrices (6) into fuel or useful products with no adverse environmental impact. The modular plant includes a rotary reactor (9) with a rotating drive mechanism (22) and a fixed stationary body (1). The inclination of the reactor (9) with rotating central longitudinal axis can vary from 0° to 45° with respect to horizontal. The reactor has a substantially cylindrical central body closed at a first entry end with a stationary fixed head (8), and at the exit end with a head fixed to the rotary reactor (9). The inlet end (8) contains one inlet (7) for the introduction of the carbonaceous matrix (6) into the rotary reactor and the other inlet (5) for introducing thermally conductive carriers (4). The rotary reactor (9) lacks internal components which provide rotation motion relative to the cylindrical body.

Abstract: The methods of the invention are aimed toward the determination of corrosivity, ageing, fingerprinting and contaminants, as well as the functional diagnosis, decontamination, depolarisation and detoxification of oils and technical fluids, such as mineral insulating, natural and/or synthetic esters, lubricants, hydraulic fluids, diathermic fluids and technical fluids in general, used in apparatuses and equipment, such as electric transformers, reactors, bushings, switches and turbines, for the generation, transmission, distribution and use of power.