A mixing apparatus includes: a driving device configured to drive first liquid to flow into first transfer chamber and to drive second liquid to flow into second transfer chamber, a first transfer chamber configured to store inflowed first liquid, and a second transfer chamber configured to store inflowed second liquid; a premixing chamber communicating with liquid outlet of first transfer chamber and liquid outlet of second transfer chamber; and a monitor configured to monitor volume of liquid in first transfer chamber and volume of liquid in second transfer chamber, close liquid inlet of first transfer chamber and control first liquid to flow into premixing chamber when volume of first liquid is equal to first value, and close liquid inlet of second transfer chamber and control second liquid to flow into premixing chamber when volume of second liquid is equal to second value.

Methods and systems of operating a pump at an efficiency point during an in-line blending operation. In an embodiment, such a method may include transporting a fluid from a tank to a pump through a first pipe. The method may include discharging, via the pump, the fluid at a specified flow rate through a second pipe. The method may include measuring a flow rate of the first portion of the fluid flowing from the main control valve through the mixing pipe. The method may include measuring a flow rate of the second portion of the fluid flowing through the spillback loop. The method may include determining a current pump efficiency point and operating the pump within a range of percentages of the best efficiency point.

Embodiments provide mixing methods, systems, apparatuses, devices and assemblies that enable high-accuracy mixing of two or more substances in a manner that controls the concentrations of one or more substances in the resulting mixture. A mixing apparatus (100) may enable mixing of two or more substances at a mixing zone or conduit (112). The mixing apparatus may include one or more sensors (120) for detecting one or more characteristics of the mixture during the mixing process. The sensors may detect the mixture characteristics continuously, at intervals or as prompted by a user. The mixture characteristics may be used, in the sensors or in control circuitry, to generate an indication of the concentration of a first constituent substance in the mixture. Based on the detected concentration, the mixing apparatus may automatically adjust a supply of the first substance to the mixing zone or conduit (112).

A device for mixing and metering of at least two gases, comprising two bodies that can be displaced relative to each other, wherein margins of the bodies are in contact with one another and between these margins at least two rectangular openings for one gas each can be formed, wherein a displacement of the bodies relative to each other automatically causes an increase of one opening and a decrease of the other opening, wherein the resulting total cross-section of the openings remains constantly the same here. Moreover, the device comprises a control element which is arranged adjacent to the two bodies and in contact therewith, wherein the control element can be translationally displaced in a continuous manner between a closed position and an open position in order to close or to open the openings.

Methods and systems of admixing hydrocarbon liquids from a plurality of tanks into a single pipeline thereof. The system may include two or more tanks positioned at a tank farm each containing a hydrocarbon liquid therein. The system may include two or more first main pipes, each connected to one of the tanks. The system may include two or more main valves, each connected to one of the first main pipes. The system may include two or more second main pipes each connected to a corresponding main valve. The system may include two or more mixing jumpers, each connected to a corresponding first main pipe, each mixing jumper to, when a corresponding main valve is closed, control hydrocarbon liquid. The system may include a mixing pipe, connected to the second main pipes and the mixing jumpers, configured to transport hydrocarbon liquid from one or more of the tanks.

A treatment gas supplying apparatus includes: a first mixed gas producing section that is configured to produce a first mixed gas in which a first gas and a treatment gas having a treatment effect are mixed with each other in a first ratio; and a second mixed gas producing section that is configured to produce a second mixed gas in which a second gas and the treatment gas are mixed with each other in a second ratio, the second ratio being within a constant difference from the first ratio.

A liquid dispensing system for treating a substrate is provided and includes a flow controller, pressure regulator, mixing node, liquid mixer, temperature sensor, N dispensers, and system controller. The flow controller receives and controls a flow rate of a first liquid. The pressure regulator receives and controls a pressure of a second liquid. The mixing node mixes the first and second liquid output by the flow controller and pressure regulator to provide a first mixture. The liquid mixer mixes the first mixture and a third liquid to provide a second mixture. The temperature sensor measures a temperature of the second mixture. The N dispensers dispense the second mixture at the substrate. The system controller controls the measured temperature to be between the first and second temperatures by adjusting the flow rate based on the measured temperature and independent of a measurement of a flow rate of the second liquid.

Methods and systems for producing ammonia, urea, and UAN are described herein. The methods can include providing a hydrocarbon feed stock and an oxygen-containing stream and reacting the hydrocarbon feed stock with the oxygen-containing stream to provide a syngas containing carbon dioxide and blue hydrogen. The methods can also include electrolyzing water to provide green hydrogen and blending the blue hydrogen with the green hydrogen to provide a blended hydrogen. The blended hydrogen can be introduced to an ammonia synthesis system to provide an ammonia product, which can be further processed to provide urea and/or UAN. The ratio of green to blue hydrogen in the blended hydrogen can be based on available green credits.

A valve for dosing and mixing two fluids includes two respective inlet ducts, a double chamber for controlling the flows, at least one actuator configured to regulate the flow rates of the two fluids to be mixed, an electronic control unit and a Brix degrees optical sensor, arranged on the mixing duct of the mixture of the two fluids and operatively connected to the electronic control unit. The optical sensor is configured to send a measurement and control signal to the electronic control unit to drive the actuator so as to proportionally control the flow rates of the two fluids and, therefore, regulate the mixing ratio of the two fluids.

An onsite system for generating a fumigant for use with foodstuffs comprising: an active fumigant vaporizing station comprising: a first water heater; a heat exchanger connectable to the first water heater to receive heated water therefrom, the heat exchanger being configured to receive, heat and vaporise active liquid fumigant entering into the heat exchanger via a fumigant inlet; and a fumigant outlet connected to the plate heat exchanger for delivering a stream of vaporised fumigant; a liquid diluent vaporizing station comprising: a second water heater; a shell and tube heat exchanger connectable to the second water heater to receive heated water therefrom, the shell and tube heat exchanger being configured to receive, heat and vaporise the liquid diluent entering into the shell and tube heat exchanger via a mixing liquid inlet; and a mixing liquid outlet connected to the shell and tube heat exchanger for delivering the vaporised diluent; and a mixing unit configured to receive and mix the vaporised fumigant from the fumigant outlet and the vaporized diluent liquid from the diluent liquid outlet; mixing of the vaporised fumigant and vaporised mixing liquid to deliver a vaporised fumigant mixture; and a mixing and control means at the mixing unit for mixing the vaporised fumigant and diluent at, or substantially at, a predetermined mixing ratio.