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344 results about "Dissolved hydrogen" patented technology

The manner in which hydrogen gas is dissolved in the water has an effect on its stability and rate of exsolution (coming out of solution) and dissipation. Hydrogen gas can exist in water as fully dissolved gaseous solutes, colloidal and suspension forms, as well as large macrobubbles that exit almost immediately.

Method of liquid phase circulation hydrotreatment and reaction system

The invention discloses a method of liquid phase circulation hydrotreatment. A part of liquid product after hydrotreatment circulates and is mixed with raw material to form liquid phase material, the hydrogen is mixed in the liquid phase material, the mixing volume of the hydrogen is increased by below 20 times of the dissolved hydrogen volume of a reaction system under the reaction condition based on the chemical hydrogen consumption in the reaction process, the liquid phase material mixed with the hydrogen enters the upper part of a reactor, the upper part of the reactor is provided with a gas phase space and an exhaust system which is communicated with the gas phase space, the pressure and the liquid level in the reactor are controlled by controlling the displacement of the exhaust system, the liquid phase material dissolved with the hydrogen enters a hydrogenation catalyst bed at the lower part of the reactor for hydrotreatment reaction, a part of the liquid phase reaction productis discharged from the reaction system, and the other part circulates and is mixed with the raw material. The method can ensure good reaction effect and leads the liquid phase circulation hydrotreatment to be stably controlled and operated.
Owner:CHINA PETROLEUM & CHEM CORP +1

High temperature high pressure water circulation system

The invention relates to water circulation systems, in particular to a water circulation system which can control hydrochemistry and meet high temperature and high pressure conditions, and solves problems such as the measurement and the control of a hydrochemistry parameter in the high temperature and high pressure water circulation system and the like. The system mainly consists of two loops; a primary loop is in a normal temperature and pressure state; through continuous circulation in the primary loop, the conductivity of water can be caused to reach a needed index; dissolved oxygen content and dissolved hydrogen content in the water can be comparatively precisely controlled; the PH value and temperature changes of the water can be detected in an on-line manner; and solutions containing special ions can be added in the primary loop according to the needs of an experiment; a high pressure pump and a preheater in a secondary loop can cause water in an autoclave to reach a state of high temperature and high pressure (320 DEG C, 12 MPa), and simulate practical service environments (such as a nuclear power high temperature water environment) to conduct an environment damage experiment on a material; and after heat transfer and cooling, water out of the autoclave can return to the primary loop to be continuously recycled and used.
Owner:INST OF METAL RESEARCH - CHINESE ACAD OF SCI

Measurement techniques for controlling aspects of a electroless deposition process

Embodiments of the invention generally provide a fluid processing chamber, sensors and a controller and method for using the same. The fluid processing chamber includes an inlet region, a processing region and an outlet region. The inlet region generally contains one or more sensors and an external controller to monitor the characteristics of the processing fluid at the inlet to the processing region. The outlet region generally contains one or more sensors and an external controller to monitor the characteristics of the processing fluid leaving the processing region of the chamber. In one embodiment the processing region contains one or more sensors and an external controller to monitor the characteristics of the processing fluid in the processing region. The sensors may include, for example, an ORP probe, a temperature sensor, a conductivity sensor, a dissolved hydrogen sensor, a dissolved oxygen sensor, and a pH sensor. The fluid processing chamber is generally useful for all process steps done to deposit an electroless deposited film on a substrate including, for example, all pre-clean process steps (substrate preparation steps), all electroless activation process steps, all electroless deposition steps, and all post electroless deposition cleaning steps.
Owner:APPLIED MATERIALS INC

Ultrasonic treatment chamber for initiating thermonuclear fusion

A thermonuclear fusion system having a treatment chamber in which gas isotopes are fused to initiate a thermonuclear fusion reaction is disclosed. Specifically, the treatment chamber has an elongate housing through which liquid and gas isotopes flow longitudinally from an inlet port to an outlet port thereof. An elongate ultrasonic waveguide assembly extends within the housing and is operable at a predetermined ultrasonic frequency and a predetermined electrode potential to ultrasonically enhance the concentration of dissolved hydrogen gas isotopes within the housing or energize and electrolyze the liquid and gas isotopes within the housing. An elongate ultrasonic horn of the waveguide assembly is disposed at least in part intermediate the inlet and outlet ports, and has a plurality of discrete agitating members in contact with and extending transversely outward from the horn intermediate the inlet and outlet ports in longitudinally spaced relationship with each other. The horn and agitating members are constructed and arranged for dynamic motion of the agitating members relative to the horn at the predetermined frequency and to operate in an ultrasonic cavitation mode of the agitating members corresponding to the predetermined frequency and the liquid and gas isotopes being treated in the chamber.
Owner:KIMBERLY-CLARK WORLDWIDE INC

Dissolved hydrogen limited value sensor in power transformer oil and detection system

InactiveCN104406885AKnow the concentrationAvoid influenceMaterial analysisGratingInterference resistance
The invention discloses a dissolved hydrogen limited value sensor in power transformer oil and a detection system. The dissolved hydrogen limited value sensor comprises an optical fiber, wherein a grating is engraved on a fiber core of the optical fiber; a region, which corresponds to the grating, on the optical fiber is an optical fiber grating region; one side surface of a wrapping layer of the optical fiber grating region is polished into a planar polished surface; a hydrogen sensitive metal layer is attached to the polished surface. The limited value sensor is high in sensitivity and high in timeliness; once the concentration of dissolved hydrogen reaches a limited value, the wavelength change amount quickly reaches the limited value, so that a worker can timely and effectively find a fault to prevent further development of the fault. By adoption of an optical signal, the influence on a measurement result due to a complicated environment in a transformer can be avoided, the interference resistance is high, a detection signal is a wavelength, and the influence caused bv the factors such as the intensity of a light source signal, aging of a detector and connection loss is avoided. The dissolved hydrogen limited value sensor is simple in structure and is prepared based on the optical fiber; the diameter is small, and the limited value sensor is easily arranged in the transformer oil and convenient for detection; furthermore, normal operation of the transformer cannot be affected, and the limited value sensor is suitable for on-site application of the transformer.
Owner:ELECTRIC POWER RES INST OF GUANGDONG POWER GRID +1

Residual oil hydrotreating method

The invention discloses a residual oil hydrotreating method, the method uses a fixed bed radial reactor for residual oil hydrogenation reaction, catalyst bed layers of the fixed bed radial reactor are respectively loaded, from the inside to the outside, with a protective agent, a hydrodemetallization catalyst, a hydrodesulfurization catalyst and a hydrodenitrogenation / carbon residue removal catalyst, raw oil mixed with dissolved hydrogen enters from the reactor bottom via a feed tube for hydrotreating reaction, hydrogenated generation oil is collected by a generation oil collection zone, and then discharged out of the reactor. The method avoids the defects that in the prior art, when the hydrodemetallization activity of a front catalyst of a fixed bed residual oil hydrogenation unit is lost, hydrodemetallization reaction is undertaken completely by a rear catalyst, and the rear catalyst deactivation is accelerated, overall improves the active resource utilization rate of catalysts, and can effectively reduce the varieties and specifications of the catalysts without too much increase of the protective agent, the raw oil can be in stable and long-term operation at the optimum reaction temperature, and temperature increasing operation is not needed for compensation of the catalyst activity.
Owner:CHINA PETROLEUM & CHEM CORP +1

Crude benzene hydrogenation method

The invention discloses a crude benzene hydrogenation method, which comprises the steps that: crude benzene full-fractional raw materials, hydrogen and cyclic products generated through hydrogenation are fully mixed in a hydrogen mixing tank so that the hydrogen is dissolved in hydrogenation raw materials to the maximum degree; then, the crude benzene full-fractional hydrogenation raw materials with rich dissolved hydrogen enter one section of hydrogenation reactor in a full liquid phase form; and in addition, the whole hydrogenation reaction is carried out under the full liquid phase condition through controlling the pressure of a system. After the crude benzene hydrogenation method is adopted, the coking problem in the crude benzene hydrogenation process can be perfectly solved, the long-term operation of a crude benzene hydrogenation device is realized, the crude benzene full-fractional hydrogenation refining can also be realized, crude benzene is completely converted into important chemical products such as clean benzene, toluene, dimethylbenzene and the like, and the comprehensive utilization value of the crude benzene is improved. In addition, the hydrogenation reaction in the method is liquid phase reaction, the hydrogen circulation process and the adoption of a hydrogen circulation compressor are not needed, in addition, the raw material pretreatment link is omitted, and simultaneously, one section of hydrogenation reactor is used, so the energy consumption and the investment can be effectively reduced.
Owner:HUNAN CHANGLING PETROCHEM SCI & TECH DEV CO LTD
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