A centrifugal mesh mist eliminator generally comprises a cylindrical roll of mesh attached to a vertical rotating shaft positioned within the center of a pressure vessel. A horizontal partition within the pressure vessel forms a barrier seal between the upper and lower portions thereby directing droplet laden gas flow through the rotating mesh. The incoming droplet laden gas stream enters the lower portion of the pressure vessel through an inlet nozzle. The droplet laden gas stream flows through the rotating cylindrical mesh element where it enters the top section of the pressure vessel. Droplets impinge on the mesh and coalesce into larger diameter drops. These larger diameter drops detach from the mesh due to centrifugal force. The detached liquid droplets settle to the bottom of the vessel as their mass is sufficient to overcome the surrounding flow stream drag force. Liquid discharges from the bottom of the vessel through an outlet nozzle while dry gas exits through a top outlet nozzle.

The present invention provides an industrial wastewater recovery apparatus (100) aiming at Zero Liquid Discharge (ZLD). The apparatus (100) provides two stages in pre-heating the spiral coil pipe (103) containing wastewater and also conserves the heat by using the two heat exchangers (104, 105). The apparatus (100) agitates the surface wastewater to increase the rate of evaporation for faster heating. The apparatus (100) provides two stages in condensation of distilled water and also provides real-time monitoring of the water quality. The apparatus (100) provides automatic cleaning in the various parts during the operations. Further, a plurality of IoT sensor (201) monitor the real time parameters of the industrial wastewater recovery apparatus (100) and data is available to the user on the electronic display device (204).

A fluid vapor distillation apparatus. The apparatus includes a source fluid input, and an evaporator condenser apparatus. The evaporator condenser apparatus includes a substantially cylindrical housing and a plurality of tubes in the housing. The source fluid input is fluidly connected to the evaporator condenser and the evaporator condenser transforms source fluid into steam and transforms compressed steam into product fluid. Also included in the fluid vapor distillation apparatus is a heat exchanger fluidly connected to the source fluid input and a product fluid output. The heat exchanger includes an outer tube and at least one inner tube. Also included in the fluid vapor distillation apparatus is a regenerative blower fluidly connected to the evaporator condenser. The regenerative blower compresses steam, and the compressed steam flows to the evaporative condenser where compressed steam is transformed into product fluid. The fluid vapor distillation apparatus also includes a control system.

A water purification system includes a high temperature water tank, a flameless heat source, a cylindrical vessel (hydrocyclone nest), a first pump, a steam production meter, and a steam condenser and heat exchanger. The contaminated water is heated within the high temperature water tank using the flameless heat source. The heated contaminated water heats the cylindrical vessel and one or more sets of hydrocyclones. The heated contaminated water is pumped into the cylindrical vessel such that the heated contaminated water enters a tangential inlet of the hydrocyclones, the hydrocyclones separate the heated contaminated water into steam and solids/concentrate, the steam exits through an overflow of the hydrocyclones and a first outlet of the cylindrical vessel, the solids/concentrate exit through an underflow of the hydrocyclones and a second outlet of the cylindrical vessel. The steam is condensed into purified water using the steam condenser and heat exchanger.

Ethylene oxide purification by quenching and washing ethylene oxide reactor effluent prior to passing the gaseous ethylene oxide-containing stream to an ethylene oxide absorber to form a dilute aqueous ethylene oxide and carbon dioxide solution and thereafter stripping that solution in an EO stripper to produce a gaseous ethylene oxide and carbon dioxide-containing overhead vapor which is then passed to a reabsorber wherein the ethylene oxide and part of the carbon dioxide vapors are absorbed to form an aqueous reabsorbate solution from which carbon dioxide is removed to produce an ethylene oxide-containing solution is improved by passing an impurities-containing liquid bleed stream obtained from the quench wash to a second, small quench bleed stripper where steam and carbon dioxide are added and gaseous overhead from that quench bleed stripper is passed to the reabsorber for recovery of the EO and removal of formaldehyde and other impurities.

A liquid-vapor separator includes a housing, an inlet disposed on the housing and configured to receive a working fluid into the housing, a vapor stream outlet disposed on the housing and configured to release a vapor stream of the working fluid, and a demister disposed in the housing and configured to transfer thermal energy between the working fluid and the vapor stream. In some embodiments, the working fluid absorbs thermal energy and evaporates to provide the vapor stream that includes entrained droplets. At least a portion of the entrained droplets absorbs thermal energy from the working fluid to evaporate when the vapor stream flows through the demister. In some embodiments, the liquid-vapor separator includes a passive demisting portion that demists by obstructing at least a portion of the entrained droplets.

A system for condensing vapor product is provided. The system includes a first duct configured to receive a vapor product having a first humidity level, the first duct having a first charge in response to application of a first voltage to the first duct so as to ionize the vapor product. A second duct is configured to allow the ionized vapor product to pass therethrough and configured with a second charge in response to application of a second volt age to thereby allow collection of at least a portion of liquid particles present in the ionized vapor product and form a first modified vapor product. A chamber is configured to receive the first modified vapor product and includes at least one cooling plate configured to reduce a temperature of the first modified vapor product, and at least one first mesh plate configured to collect at least a portion of liquid particles. Methods for condensing vapor are also provided.

A high capacity and high efficiency co-current and cross-flow vapor-liquid contacting apparatus and process is useful in distillation columns and other vapor-liquid contacting processes. The apparatus is characterized by an arrangement of contacting modules and perforated receiving pans in horizontal stages. The modules define a co-current contacting volume and in an exemplary configuration the modules include a liquid distributor and a demister. Liquid dispensed from the modules on a perforated receiving pan are contacted with upflowing vapor through perforations therein.

A desalination system that includes a plurality of evaporators that are fluidly connected in series, a primary compressor that is fluidly connected to the evaporators to provide a compressed vapor to the evaporators to run the desalination system, and a secondary compressor that is arranged in parallel relative to the primary compressor, wherein the secondary compressor extracts a portion of vapor from a first evaporator and/or one intermediate evaporator in the series and delivers the vapor to the first evaporator. Various combinations of embodiments of the desalination system are provided.

A desalination system that includes a plurality of evaporators that are fluidly connected in series, a primary compressor that is fluidly connected to the evaporators to provide a compressed vapor to the evaporators to run the desalination system, and a secondary compressor that is arranged in parallel relative to the primary compressor, wherein the secondary compressor extracts a portion of vapor from a first evaporator and/or one intermediate evaporator in the series and delivers the vapor to the first evaporator. Various combinations of embodiments of the desalination system are provided.