The invention relates to improvements of a heat exchanger, particularly a scraping heat exchanger having an outer cylinder comprising a first wall having a smooth circle-cylindrical inner side, and an inner cylinder positioned concentrically within it. The improvements regard a simple detachable inner cylinder, a heat exchanger with lid including a fluid barrier, a heat exchanger with a tangential output, and a method and heat exchanger adapted for improved evacuation of a product chamber of a heat exchanger.

The invention relates to an evaporator. The evaporator may include a drum. The drum may have a first portion and a second portion. The drum may include a product inlet positioned at the first portion of the drum, a product outlet positioned at the second portion of the drum, a vapor outlet, and an agitator. The evaporator may have a heating jacket and/or a product supply pipe. The heating jacket may be configured to surround the drum and/or to heat the product in the drum. The product supply pipe may be positioned outside the drum and/or may extend from the second portion of the drum to the product inlet positioned at the first portion of the drum. The product supply pipe may be in direct contact with the heating jacket.

Methods of making a powdered milk product as described. The methods may include providing an aqueous milk-sourced mixture, and evaporating water from the aqueous milk-sourced mixture to produce an evaporated milk-sourced mixture having a total solids concentration of 35 wt. % or more. The evaporated milk-sourced mixture may be dried to form the powdered milk product, which may have less than 6 wt. % water. Systems for making the milk powdered product are also described. The systems may include an evaporator to evaporate water from a supply of a milk-sourced mixture to form an evaporated milk-sourced mixture. They may also include a dryer to dry the evaporated milk-sourced mixture and atomize it into the powdered milk product.

A housing having a heatable housing jacket, which surrounds a treatment chamber and forms a rotationally symmetrical treatment surface extending in the axial direction, and a drivable rotor, arranged in the treatment chamber and extending coaxially, for producing a material film on the treatment surface. The rotor comprises a hollow shaft, arranged in a manner distributed over the circumference of which are spreading elements. The hollow shaft surrounds a condensation space, in which a condenser is arranged. At least some of the spreading elements are configured as transport elements, which impart a transporting component to the material in the direction from the material inlet to the material outlet. Some of the spreading elements are configured as transport elements and some as distributing elements, which project from the hollow shaft and which comprise teeth, the shearing edge of which encloses an angle of less than 45? relative to the axial direction.

A system and method removes thermal decomposition components from biphenol and/or diphenyl oxide heat-transfer fluids. Light, volatile decomposition components such as benzene, water, hydrogen and phenol are passed out of the system for vapor recovery, chemical adsorption or thermal decomposition. Dimerized and polymerized heavy components such as biphenyl phenyl ether, terphenyl and isomers of each are concentrated and recovered for reprocessing and purification for reuse. The system can be operated as either a continuous, semi-continuous or batch operation. Solar electric plants employing the system can use solar field fluids and heating to operate the system during generator operation hours. A wash system operating at or near atmospheric pressure concentrates heavy thermal decomposition components while allowing light, volatile decomposition components to be removed for separation from the majority of the thermal fluid components. Temperature-controlled condensation of the majority of the thermal fluid components allows collection of the thermal fluid, while allowing light, volatile decomposition components to be removed from the system prior to vent processing.

In a system and process for selectively purifying various pharmacologically-relevant components of a source plant such as cannabis, an initial step provides a low-temperature, robust essential oil/terpene capture that also dehydrates and decarboxylates the starting productfresh raw cannabisby means of a vacuum-assisted microwave distillation process. By doing the terpene capture under vacuum distillation temperature may be kept low. The low distillation temperature maximizes yields of thermally-sensitive components such as terpenes and cannabinoids. The system includes an oil/water separator configured to prevent leakage of ambient air into the system.

A method for producing a cellulose solution with a solvent from a cellulose suspension in the solvent and a volatile non-solvent, including the introduction of the suspension into an inlet of a thin-film treatment apparatus, application and distribution of the suspension in a film-like form on a housing casing, temperature-controlled using a heat exchanger, by sweeper elements rotating about a common axis in a process housing of the treatment apparatus, evaporation of volatile non-solvent so that the cellulose is dissolved, and output of the solution of cellulose from the treatment apparatus through an outlet, wherein at least a part of the sweeper elements cause the cellulose to be advanced in the direction of the outlet so that the discharge at the outlet is between 300 kg/h and 600 kg/h cellulose solution per m.sup.2 of the temperature-controlled surface of the housing casing.

A centrifugation station for extrusion plants comprises a tubular body, a shaft and an impeller. The tubular body internally defines a processing duct extending along a central axis between a supply section and a release section. The shaft has an upper portion extending in the supply section and a threaded lower portion extending in the release section. The impeller is fitted around the upper portion of the shaft and is rotatable around the central axis independently of the shaft. Furthermore, the impeller is provided with a plurality of blades angularly spaced from each other and shaped to distribute the molten material to be extruded on an inner wall of the supply duct favouring the extraction of any volatile compounds from the material to be extruded.

A method for cleaning a contaminated solvent used to treat a gas stream, for example a contaminated glycol or a contaminated amine stream, by vacuum evaporation using a mechanically-maintained horizontally-orientated thin film evaporator, where the contaminant material is recovered from the thin film in solvent-free form, as either a heavy organic material or as free flowing salts.

A system for processing a fluid by generating water vapor through forced compression and rotation in a vessel includes capturing sea water for use in desalination processing in the vessel. Any fluid processed in the vessel, including sea water, can be used to create water vapor that rises to an elevation under its own power. After condensing the water vapor to liquid again, the condensed liquid falls upon a hydro-electric generator to generate electricity that is stored for later use. Brine output from the system can be recycled for re-processing through the system to increase water vapor yield. The wet brine output may also be dried to produce dried brine for subsequent processing of salt and other minerals.