The invention relates to methods, systems and apparatus for distributed management of raw water and internal combustion engine (ICE) gas emissions generated during industrial operations. One aspect of the invention at least partially utilizes a hot gas air knife to increase or partially increase surface area between a raw water and a hot gas in order to vaporize a proportion of the aqueous phase of the raw water and concentrate contaminants within a residual raw water concentrate. The water vapor generated by the vaporization process may be demisted, discharged directly to the atmosphere or alternatively condensed and captured for use. Another aspect relates to how the liquids and gasses interact to continuously flush the surfaces of the system which may help mitigate scaling issues. The invention may help facilitate rapid transfer of ICE combustion gas particulate and ICE combustion gas chemicals onto and into the raw water as it concentrates.

The invention relates to methods, systems and apparatus for distributed management of raw water and internal combustion engine (ICE) gas emissions generated during industrial operations. One aspect of the invention at least partially utilizes a hot gas air knife to increase or partially increase surface area between a raw water and a hot gas in order to vaporize a proportion of the aqueous phase of the raw water and concentrate contaminants within a residual raw water concentrate. The water vapor generated by the vaporization process may be demisted, discharged directly to the atmosphere or alternatively condensed and captured for use. Another aspect relates to how the liquids and gasses interact to continuously flush the surfaces of the system which may help mitigate scaling issues. The invention may help facilitate rapid transfer of ICE combustion gas particulate and ICE combustion gas chemicals onto and into the raw water as it concentrates.

A system and method for removing ammonia from an ammonia-containing liquid is described. The system comprises a primary heat exchanger 12 for heating the ammonia-containing liquid to operational temperature, an ammonia stripper 14 for stripping ammonia from the ammonia-containing liquid from the primary heat exchanger and discharging it as ammonia-containing gas, and an acid scrubber 16 for reacting the ammonia in the ammonia-containing gas with acid to form an ammonium salt. The acid scrubber comprises a scrubbed air outlet 32 in fluid communication with a hot air inlet 20 of the ammonia stripper, such that scrubbed air which is discharged from the acid scrubber may be recycled for use in the ammonia stripper. Also described is a system and method for removing ammonia from an ammonia-containing liquid, wherein the system comprises a cold-water scrubber for removing ammonia from the ammonia-containing gas discharged from the ammonia stripper.

A spray pyrolysis system and method are described for manufacture of mixed metal oxide compositions, e.g., mixed metal oxide catalyst compositions having utility for gas processing applications such as hydrogenation, dehydrogenation, reduction, and oxidation. Mixed metal oxide automotive exhaust catalyst compositions produced by such system and method achieve a substantial reduction in temperatures required for removal of automotive exhaust pollutant species, as compared to catalyst produced by conventional batch precipitation techniques. The spray pyrolysis system and method enable catalytic metal(s) to be integrally incorporated in the mixed metal oxide composition, thereby obviating a separate catalytic metal impregnation operation.

Proposed is a moisture removal device using a rotating disk and nitrogen peeling according to the present disclosure may include a circulation pump unit for circulating the oil in the storage tank connected to the circulation pump on one side of the device body via a valve, a chamber for exposing the oil circulated through the circulation pump unit into the chamber headspace through the rotation of the plurality of rotating disks, and a membrane unit that supplies dry nitrogen gas to oil exposed in the chamber headspace through rotation of a plurality of rotating disks of the chamber. The moisture removal device may remove free moisture, emulsified moisture, and dissolved moisture in oil contaminated with moisture through dry nitrogen gas purging by using a continuously rotating disk.

Provided herein are methods, systems, and devices incorporating use of materials to store, ship, and deliver process gases to micro-electronics fabrication processes and other critical process applications.

This disclosure concerns a system for purifying contaminated water and a method for using the system. More specifically, the invention concerns removing contaminants, such as those introduced by fracking, from a contaminated water.

The application provides in an aspect a process for producing urea in a urea plant comprising a high pressure synthesis section comprising a reactor, wherein the process comprises reacting NH.sub.3 feed and CO.sub.2 feed under urea formation conditions in said reactor to form a urea synthesis solution comprising urea, water, carbamate and ammonia, wherein the process further comprises contacting a carbamate-containing liquid stream with an equipment part of said high pressure synthesis section that is made of a ferritic steel alloy.

The present invention refers to a process for purifying leucoindigo salt solutions, for removal of aromatic amines, particularly aniline and N-methylaniline, comprising: adding to a purification vessel a leucoindigo salt solution containing aromatic amines, said solution in the form of a stationary mass; bubbling with a controlled flow rate an inert gas in the purification vessel, by means of a device submerged at the surface of the stationary mass; injecting with a controlled flow rate a gas purification current into the vessel, by means of a device submerged at the stationary mass; and recovering the purified solution from the vessel. It also refers to the use of inert gas in a process for purifying leucoindigo salt solutions, acting as a gas anti-foaming agent, to reduce foam and chances of product stripping during processing.

The present invention is in the field of a method for obtaining high purity hydrogen peroxide, as well as a production unit for obtaining high purity hydrogen peroxide. It concerns a method for obtaining high purity hydrogen peroxide comprising the steps of providing an open container with an aqueous fluid comprising hydrogen peroxide, putting the open container with the aqueous fluid in a closed space, at ambient conditions providing an inert gas flow over and in contact with the aqueous fluid, removing water from the aqueous fluid at said ambient conditions by said gas flow, and thereby concentrating the hydrogen peroxide. The invention also concern a production unit for use in said method.