Abstract: Processes for removing carbon disulfide from product streams containing a sulfide compound are performed by contacting the product stream with an alkanolamine and converting the carbon disulfide to a higher boiling point product, thereby reducing or eliminating carbon disulfide from the product stream. Subsequent removal of the higher boiling point product via distillation can lead to a purified sulfide stream with high purity.

Abstract: Systems of producing hydrogen and biochar from biomass assisted by iron and steel slag extract include: a pretreatment system that the reactants, including the biomass, iron-based catalyst and alkaline reagent, are pretreated and fully mixed at specific ratios in the pretreatment system; thermal reactor that the mixed reactants from the pretreatment device are transferred into and fully reacted in the thermal reactor; a solid residue collector that the solid residue is collected by the solid residue collector at the discharge outlet of the thermal reactor after the reacted mixture is separated; a gas collection system that he generated hydrogen-based gas is collected by the gas collection system from the exhaust port of the thermal reactor.

Abstract: The present disclosure relates to a preparation system and a preparation method of a diester-based composition. A first alcohol which is a reaction raw material is added to waste water as an extracting agent, and layer separation is performed to separate a second alcohol which is another reaction raw material in the waste water. Accordingly, the amount of alcohol discharged as waste water can be reduced, and an eco-friendly process operation is possible. In addition, it is economical and efficiency to use the alcohol separated again as a reaction raw material.

Abstract: The disclosure pertains to a high pressure carbamate condensation apparatus for a urea plant, a urea plant, and a urea production method. The apparatus comprises a first U-shaped tube bundle arranged around a second U-shaped tube bundle.

Abstract: In one embodiment, an anhydrous hydrogen fluoride generator vessel (also referred to herein as the “AHF generator vessel”) is provided. In several embodiments, an AHF generator vessel may include a container assembly, one or more shelves, and a center pipe assembly. The container assembly may include a lid assembly that may be removably coupled to the wall, and one or more feet. The center pipe assembly may include a base adapter, a center pipe, and a bottom adapter. In one embodiment, sodium bifluoride is loaded onto the one or more shelves which are positioned perpendicular to the center pipe and stacked upon one another. An external heat source may provide the heat to the vessel to thermally degrade the sodium bifluoride into HF and sodium fluoride (NaF). In various embodiments, the HF may be carried by a carrier gas out of the AHF generator vessel via the lid assembly.

Abstract: A sterilization and air purification control system and a mounting structure of a waste disposer include a bottom mounting housing and a disposer main machine and a sterilization module. The sterilization module includes an ozone generator driver, a negative oxygen ion generator and an exhaust mechanism. The bottom mounting housing is an accommodating housing and is detachably mounted at a bottom portion of the disposer main machine, an outer edge of the bottom mounting housing is provided with a light strip, the exhaust mechanism is fixedly connected to an inside of one side surface of the bottom mounting housing, and the exhaust mechanism communicates with inner and outer sides of the bottom mounting housing.

Abstract: A continuous flow reactor having a plurality of interwoven flow paths in fluid communication to form a single continuous flow reactor tube having a single flow path.

Abstract: A reactor system including a plurality of catalytic modules connected end-to-end, forming a passage for reactants to pass through individually heated catalytic heating elements, thereby producing products. Each catalytic module has an insulating housing containing a catalytic heating element and configured to pass reactants over the catalytic heating element. A conductor in the module applies electricity to the catalytic heating element, which operates as a combined catalytic material and heating element.

Abstract: The present invention generally relates to improved catalysts that provide for reduced product contaminants, related methods and improved reaction products. It more specifically relates to improved direct fuel production and redox catalysts that provide for reduced levels of certain oxygenated contaminants, methods related to the use of those catalysts, and hydrocarbon fuel or fuel-related products that have improved characteristics. In one aspect, the present invention is directed to a method of converting one or more carbon-containing feedstocks into one or more hydrocarbon liquid fuels. The method includes the steps of: converting the one or more carbon-containing feedstocks into syngas; and, converting the syngas to one or more hydrocarbons (including liquid fuels) and a water fraction. The water fraction comprises less than 500 ppm of one or more carboxylic acids.

Abstract: The invention provides a skin disinfectant for treating skin with eczema, preventing bacterial proliferation, and removing biofilm. Compositions of the invention include hypochlorous acid, acetic acid, water, and one or more additives or excipients. The formulation process removes metal ions, reduces ionic strength, controls pH, and reduces exposure to air, thus improving stability and lengthening shelf-life.

Abstract: A fluid treatment device with a new configuration is provided. The fluid treatment device is provided with an upstream treatment unit defined by treatment surfaces that rotate relative to each other, and a downstream treatment unit arranged downstream of the upstream treatment unit. The upstream treatment unit is configured such that, by passing the fluid to be treated into an upstream treatment space defined by the treatment surfaces, the fluid to be treated is subjected to upstream treatment. The downstream treatment unit is provided with a downstream treatment space which performs the function of retaining and mixing the fluid to be treated by means of a labyrinth seal. An upstream outlet of the fluid to be treated from the upstream treatment unit opens into the downstream treatment space, and the downstream treatment space is configured to use the labyrinth seal to perform the function of controlling retention time.

Abstract: An electrostatic air cleaner may be operated according to a manner designed to achieve acceptable air quality while balancing power usage and corona electrode degradation levels. The voltage applied to the corona electrode(s) may be controlled as well as the voltage applied to repelling electrodes and air flow velocity. The air cleaner may also be operated to achieve desired particle separation.

Abstract: The present disclosure includes a system for producing low carbon olefins and/or aromatics from raw material comprising naphtha. The system can include a reaction unit that includes a fast fluidized bed reactor, a stripping unit that includes a stripper, and a regeneration unit. The reactor unit is adapted to allow the catalytic cracking of naphtha and to output reaction unit effluent material (spent catalyst and product gas) into the stripping unit, which is adapted to output product gas. The stripping unit is connected to and in fluid communication with the regeneration unit such that the stripping unit supplies the spent catalyst from the reaction unit to regeneration unit. The regeneration unit is adapted to regenerate the spent catalyst to form regenerated catalyst. The regeneration unit is connected to and in fluid communication with the fast fluidized bed reactor such that, in operation, regenerated catalyst can be sent to the fast fluidized bed reactor of the reaction unit.

Abstract: A handheld sanitization device includes ultraviolet emitter(s) housed within an enclosure. The enclosure has a window for passing the ultraviolet light from the ultraviolet emitter(s). A mechanism selectively blocks the window that has an open position in which the ultraviolet light passes through the window and out of the enclosure and has a closed position in which the window is occluded, thereby blocking the passage of the ultraviolet light from the ultraviolet emitter(s), through the window. The mechanism is biased into the closed position. There is an electromechanical device physically interfaced between the enclosure and the mechanism and there is a trigger switch electrically coupled to the electromechanical device. Responsive to operation of the trigger switch, the mechanism is moved from the closed position into the open position by movement of the electromechanical device, thereby, releasing the ultraviolet light through the window.

Abstract: A system and a method for producing hydrogen and electrical power from an aqueous ammonia solution are provided. An exemplary system includes a distillation unit to produce ammonia gas from the aqueous ammonia solution, a compression unit to boost the pressure of the ammonia gas, a membrane separator to catalytically convert the ammonia gas to nitrogen and hydrogen and remove the hydrogen as a permeate, and a micro turbine to combust a retentate to generate energy.

Abstract: A shoe treating apparatus includes an upper cabinet, a lower cabinet disposed below the upper cabinet, an electronic component part disposed below the lower cabinet, a sensor part, and a processor electrically connected to the electronic component part and the sensor part. The processor may identify at least one of a material, a type, and a condition of at least one shoe in the upper cabinet, and based on the identification, perform normal treatment on the at least one shoe in the upper cabinet through the electronic component part. The processor may identify at least one of a material, a type, and a condition of at least one shoe in the lower cabinet, and based on the identification, perform intensive treatment on the at least one shoe in the lower cabinet through the electronic component part. A method of operating the shoe treating apparatus is also provided.

Abstract: Methods and systems for temperature-controlled, on-site generation of peracids, namely peroxycarboxylic acids and peroxycarboxylic acid forming compositions are disclosed. In particular, methods for using an adjustable biocide formulator or generator system overcome the limitations of temperature on the kinetics of the peracid generation and/or peracid decomposition inside an adjustable biocide formulator or generator system. The methods include the controlling of the temperature of at least one raw starting material, namely water, to improve upon methods of on-site generation of peracids. The methods allow for the generation of user-selected chemistry without regard to the ambient temperatures of the raw starting materials and/or the biocide formulator or generator system.

Abstract: A gas replacement process and a gas replacement apparatus are employed, in the nitro compound hydrogenation reaction process. The gas replacement process at least includes a first step of subjecting a stream to be replaced to the gas replacement in presence of a first replacement gas, and then a second step of subjecting to the gas replacement in presence of the second replacement gas. Assuming the superficial velocity of the first replacement gas is V1, and the superficial velocity of the second replacement gas is V2, then V2/V1?1.5.

Abstract: A fluidized apparatus contains a double-trapezoid structural member. These fluidized apparatuses are used in the nitro compound hydrogenation reaction process. The fluidized apparatus includes a shell, a gas distributor, and an inner chamber defined by an inner wall of said shell and an upper surface of said gas distributor, in the middle region of said inner chamber is disposed a perforated plate, the perforated plate comprise an outer edge region and a center region, assuming the opening rate of the outer edge region is A1 (the unit is %), assuming the opening rate of the center region is A2 (the unit is %), then A1/A2=0-0.95.

Abstract: A chemical reactor that combines a pressure vessel, heat exchanger, heater, and catalyst holder into a single device is disclosed. The chemical reactor described herein reduces the cost of the reactor and reduces its parasitic heat losses. The disclosed chemical reactor is suitable for use in ammonia (NH3) synthesis.