Abstract: 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 NH3 feed and CO2 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.

Abstract: A catalytic synthesis method, a device and a system for ammonia synthesis through orderly regulation of the electronic domain of nitrogen are provided. Nitrogen and hydrogen are used as raw materials, and a multi-composition material with magnetic material as active site is used as a catalyst, thermal field, magnetic field and electric field or thermal field and electromagnetic field are applied to nitrogen, hydrogen and catalyst at the same time. The invention adopts the catalytic synthesis method, device and system for the mild ammonia synthesis at low temperature and low pressure conditions through orderly regulation of the electronic domain of nitrogen.

Abstract: According to one embodiment, a gas processing equipment includes an oxygen remover 2 that removes oxygen contained in exhaust gas G, and a gas processing device 3 that processes pretreated exhaust gas G (P), from which the oxygen has been removed by the oxygen remover 2, with a carbon dioxide absorbent solvent S as a treatment agent.

Abstract: A load-following reactor system and associated facilities for improved control of a reactor under varying loads. The load-following reactor may be a tube-cooled reactor for methanol synthesis. A reactant may be controlled by at least one valve element such that a portion of the reactant is fed to the reactor through the reactor tubes, and a portion of the reactant is fed to the reactor after being heated in a heat exchanger. The heated portion of the reactant may be fed to the reactor after the tubes. The valve element may be controlled based on a temperature of the reactor and/or a flowrate of reactant feed to adapt the temperature of the reactor to the changing reactant flowrate.

Abstract: A nitric oxide delivery system, which includes a gas bottle having nitrogen dioxide in air, converts nitrogen dioxide to nitric oxide and employs a surface-active material, such as silica gel, coated with an aqueous solution of antioxidant, such as ascorbic acid. A nitric oxide delivery system may be used to generate therapeutic gas including nitric oxide for use in delivering the therapeutic gas to a mammal.

Abstract: A dynamically adjustable rate sulfur recovery process continuously calculates and adjusts sour gas stream operating pressure and/or flow rate to maximize sweet gas output, thereby improving efficiency. A corresponding desulfurization system may include a fixed-sized pressure vessel, a flow control valve that controls the rate of flow of a sour gas stream into the pressure vessel, a sensor that measures sulfur concentration in the sour gas stream, a reagent tank, an oxidizer tank, and a phase separator that separates sweet gas as a gaseous phase after hydrogen sulfide in the sour gas stream in the pressure vessel is converted to elemental sulfur, sulfur species, or both by contact with reagent from the reagent tank and oxidizer from the oxidizer tank. A PLC (programmable logic controller) continuously calculates updated flow rates based on sulfur concentration measurements from the sensor to achieve maximum sweet gas production.

Abstract: An apparatus, system, and method are disclosed for dry fogging system. The system includes a first liquid tank including compressed air and a first liquid configured to disinfect and sterilize. The system further includes a second liquid tank including a second liquid. The system further includes a control panel configured to regulate dispensing of the first liquid and the second liquid. The first liquid tank, the second liquid tank, and the control panel are modular and configured to detach.

Abstract: The present invention relates to a dispersion plate and a coating device comprising the same, which provides a dispersion plate comprising a plurality of gas injection holes, wherein the dispersion plate includes a plurality of spout nozzles formed by a dense arrangement of the gas injection holes, wherein one spout nozzle is disposed at the center of the dispersion plate and the plurality of spout nozzles are arranged along a plurality of virtual concentric circles from the center of the dispersion plate to the edge of the dispersion plate, where with respect to two adjacent virtual concentric circles, the number of spout nozzles arranged along an outer concentric circle based on the center of the dispersion plate is twice the number of spout nozzles arranged along an inner concentric circle and the arrangement interval of the spout nozzles arranged along the outer concentric circle is half the arrangement interval of the spout nozzles arranged along the inner concentric circle.

Abstract: Improvement in the efficiency of carbon dioxide reduction reaction is achieved. A gas supply unit having a plurality of pores is established in a lower portion of a reduction chamber, and carbon dioxide is supplied as bubbles into an aqueous solution. This can elevate a concentration of carbon dioxide dissolved in the aqueous solution without stirring the aqueous solution using a stirring bar, and render the concentration uniform in the aqueous solution. Therefore, the efficiency of reduction reaction of carbon dioxide in a reduction electrode can be improved.

Abstract: Apparatuses for generation of a gas, for example chlorine dioxide, methods of forming an apparatus, and methods of use thereof are provided. The apparatus may include at least one pouch composed of a hydrophobic material and a reactant disposed within the interior of the pouch. The reactant generates a desired gas in the presence of an initiating agent.

Abstract: A powder extractor. Multiple tank partitions are connected between the front and rear wall panels of a rectangular box. Each tank partition divides the inner cavity of the tank into a plurality of soaking tanks. The upper part of each tank partition is respectively provided There are overflow ports. The overflow ports on the partitions of adjacent tanks are staggered in the front and rear directions, and the height of each overflow port gradually decreases from right to left. The discharge end of the rightmost soaking tank relates to a new melt inlet, the feed end of the leftmost soaking tank relates to a concentrated liquid outlet; the leftmost soaking tank is provided with a feed inlet above the feed end. The powder extractor has high soaking efficiency, reduces powder waste, and improves economic benefits.

Abstract: A baffle (i.e., tube support) for use in a shell-and-tube heat exchange reactor, such as, for example, an ethylene oxide (EO) reactor, is provided that accommodates reduced tube pitch, and thus more catalyst packed tubes can be inside the reactor. The baffle, which can be referred to herein as a corrugated grid support, includes a plurality of corrugated stainless steel strips which sit into each other and form a grid pattern having tube openings. Each tube opening is configured to permit a catalyst packed tube to be inserted therein, while allowing a sufficient open area along the shell side of the tube to permit coolant to flow through the reactor.

Abstract: A system for synthesizing organic polymers utilizing one or more independent synthesizer elements of similar design configured to interconnect to one another for combined operations. The synthesizer module contains at least two small-cavity pumps in a symmetric valve and tubing arrangement for delivery, blending and/or recirculation of synthesis reagents. The synthesizer module allows it to operate independently to perform synthesis chemistry, or two or more modules can be combined.

Abstract: Provided are foodstuff treatment systems that are convertible between a processing mode in which foodstuffs are processed (e.g., disinfected) and a clean-in-place mode in which the system operates to clean material (e.g., biological buildup) that has accumulated within the system.

Abstract: Reactors are provided that can include a first set of fluid channels and a second set of fluid channels oriented in thermal contact with the first set of fluid channels. The reactor assemblies can also provide where the channels of either one or both of the first of the set of fluid channels are non-linear. Other implementations provide for at least one of the first set of fluid channels being in thermal contact with a plurality of other channels of the second set of fluid channels. Reactor assemblies are also provided that can include a first set of fluid channels defining at least one non-linear channel having a positive function, and a second set of fluid channels defining at least another non-linear channel having a negative function in relation to the positive function of the one non-linear channel of the first set of fluid channels. Processes for distributing energy across a reactor are provided.

Abstract: A chemical reactor is implemented on a substrate. The chemical reactor has multiple ducts for transporting a fluid and/or gas during use of the chemical reactor, in which the ducts optionally include pillar structures and at least one connection duct connected between two of the multiple ducts for transporting the fluid and/or gas from one duct to another. In the connection duct, a series of individual pillar structures are positioned behind each other in the longitudinal direction of the connection duct.

Abstract: A reactor vessel (1) for biomass material, wherein said reactor vessel (1) is a pressurized reactor vessel, said reactor vessel being elongated and comprising: a substantially tubular vessel part (3); two gables (5a, 5b) connected one to each end (19a, 19b) of the tubular vessel part (3), hereby enclosing a vessel internal compartment (7); and a material transporting screw (8) comprising a central shaft (9) provided within the vessel internal compartment (7) extending between the two gables (5a, 5b) along a central axis (A) of the reactor vessel (1), wherein said material transporting screw further comprises screw flight (11) provided around the shaft (9), wherein said material transporting screw is configured for transporting the biomass material through the reactor vessel, wherein both gables (5a, 5b) are inwardly dished.

Abstract: The invention discloses a disposable reaction device, a tracer synthesizer and a method for producing a tracer. The disposable reaction device comprises: (1) a disposable reagent bottle, which is used for loading the substances required for reaction, including radioisotopes, solvents, reagents, and reactants; the load can be filled directly or through a disposable liquid pipeline into the disposable reactor; (2) disposable reactors, which are used to contain radioisotopes and at least one reagent for reaction, and can be sealed with pierceable materials; (3) disposable liquid pipelines, including evaporation elements, filling elements, retraction elements, and mass transfer pipelines. The beneficial advantages brought by the present invention are: First, there is no need to wait for 10 half-lives of radioactive decay before proceeding to the next tracer production. Secondly, the disposable reaction device enables the synthesis of the same or different tracers to be repeated in a short time.

Abstract: Multi-reactor systems with aromatization reactor vessels containing a catalyst with low surface area and pore volume, followed in series by aromatization reactor vessels containing a catalyst with high surface area and pore volume, are disclosed. Related reforming methods using the different aromatization catalysts also are described.

Abstract: The arrangement for introducing a desired quantity of decontamination agent into a containment facility comprises a tank as a storage vessel for storing the decontamination agent in liquid form. A metering apparatus having a spray nozzle is directed into the containment facility so as to atomize the decontamination agent. At least one feed line from the ambient air, a compressed air connection and a control unit are provided to operate the metering apparatus. The metering apparatus has a metering container that comprises a storage chamber that has a defined volume for receiving an individual portion of decontamination agent. The storage chamber is provided so as to successively receive a number (n) of portions of decontamination agent from the tank, and the portion respectively held in the storage chamber is introduced by means of the spray nozzle into the containment facility prior to receiving a subsequent portion.