A process for supplying deaerated water to a chemical plant that includes a distillation column for separating a reaction effluent comprising water and a product. The process includes inventorying the distillation column with aerated water (water having an oxygen content of greater than 50 ppbw, such as greater than 1 ppmw). The aerated water in the distillation column may then be distilled to produce an oxygen-containing overheads and a bottoms fraction comprising deaerated water. The deaerated water in the bottoms fraction ma be transported to an upstream or a downstream unit operation, and utilizing the deaerated water in the upstream or downstream unit operation. The reaction effluent is fed to the distillation column, transitioning the distillation column from separating oxygen from water to operations for separating the product from the water.

A method of extracting volatiles from tobacco material and a method of making a pre-vapor formulation including the volatiles includes heating tobacco material to release volatiles, collecting the extracted volatiles, and combining the volatiles with a pre-vapor formulation.

The present invention relates to an apparatus and method for the generation of directed vapor from a liquid source. Vaporization takes place within a device capable of confining boiling to a geometrically small volume, and expelling it as heated vapor via capillary vaporization. The foregoing is accomplished through the use of a lightweight, compact and portable personal vaporization device that generates heated vapor by the flash boiling of small volumes of aqueous liquid in a safe and energy-efficient manner. Further, the production of vapor absent microbes in aqueous systems is accomplished through the combination of microporous componentry and flash vaporization. The apparatus and methods are directed toward personal humidification for comfort and therapeutic purposes in the case of aqueous liquids, but may also be used with other, non-aqueous liquids.

A downcomer apparatus for use in a multi-stage bubble column humidifier. The humidifier comprises at least a first, second and third stage, wherein each of said stages includes an inlet, an outlet and a chamber defined by said stage, in fluid communication with the inlet and the outlet. In the humidifier, a heated liquid fluid stream flowing downwardly exchanges mass and heat with a cooler carrier gas stream flowing upwardly through the bubble column. A bubble generator comprising a perforated plate, or sparger, passes the carrier gas, such as air, from a lower chamber to form bubbles in a fluid, such as water, forming a bath on an upper chamber. An off-set arrangement of downcomer apparatuses, wherein said apparatus comprises a funnel, a watergate, and a downcomer, is used to prevent a recirculation of humid bubbles from the upper chamber to the lower chamber, thus preventing the air stream from circumventing the bubble generator in the form of the humid bubbles. This arrangement assures the maximum possible performance of the humidifier, as the entire air stream is forced to move through the bubble column, thus maximizing the air-water surface interface for an efficient mass and heat exchange.

A device for the thermal treatment of material comprises a housing having a heatable housing jacket, which surrounds a treatment chamber and forms a rotationally symmetrical treatment surface extending in an axial direction, and a drivable rotor, which is arranged in the treatment chamber and extends coaxially. The rotor comprises a shaft, arranged in a manner distributed over the circumference of which are spreading elements. The device also comprises a condensation space, in which a condenser is formed and into which gaseous material components escaping from the material during the thermal treatment can pass, a condensate outlet for discharging the material components condensed in the condensation space, and a vacuum connection, which is fluidically connected to the condensation space. The vacuum connection is arranged in a region of the housing that lies downstream of the treatment surface, as viewed in the transport direction of the material.

A system for processing cannabinoids and recovering solvent has a vessel for a mixture of cannabinoids and solvent. A pump forms a vacuum in the system to draw the mixture into a first heat exchanger to pre-heat the mixture. A falling film evaporator receives the mixture from the first heat exchanger, and boils the mixture to form a solvent vapor. The falling film evaporator collects the cannabinoids from the mixture as a crude oil. The first heat exchanger receives the solvent vapor. Heat is transferred to incoming mixture of the system, and cools and condenses the solvent vapor to form solvent condensate and vapor. A second heat exchanger receives and further cools the solvent condensate and vapor to form further condensed solvent and some solvent vapor. The pump receives the further condensed solvent and some solvent vapor and increases pressure to form solvent liquid and recovers solvent liquid for reuse.

Plant and process for separation of sulfur-containing components, H.sub.2S, COS and mercaptans from methanol which is used as absorbent within the Rectisol process by hot regeneration of the methanol laden in the absorption and an additional step for separation of the mercaptans from the methanol by stripping.

The present invention relates to a process, methods and materials for generating fertilizers from seawater resources, especially in conjunction with seawater desalination plants. Here, we demonstrate that varying compositions of fertilizers such as nitrogen/potassium, nitrogen/phosphorus/potassium, nitrogen/potassium/sulfur, and nitrogen/phosphorus/potassium/sulfur, potassium/sulfur, potassium along with micro and secondary nutrients can directly be generated as part of the extraction process to meet the requirements of both starter and sustained phases of plant growth.

An evaporation and condensing system having a structure including an evaporator section and a condenser section. A first nozzle system is disposed in the evaporator section. The first nozzle system is in communication with a first feed pipe disposed at least partially in the structure, the first feed pipe is adapted to be in communication with a first substance. A second nozzle system is disposed in the condenser section. The second nozzle system is in communication with a second feed pipe disposed at least partially in the structure. The second feed pipe is adapted to be in communication with a second substance. A first porous knockout panel is disposed proximate the evaporator section. A second porous knockout panel is disposed proximate the condenser section. A first substance drain is disposed in the evaporator section. A second substance drain is disposed in the condenser section.

Disclosed is a plant for the production of urea. The plant comprises conventional sections for synthesis and recovery, for evaporation and condensation, for urea finishing, and for dust scrubbing. According to the invention, an additional evaporation and condensation loop is introduced from and to the dust scrubbing section. This loop results in a more favorable energy consumption of the plant.