Chinese scientists have found that burying carbon dioxide in deep-sea sediments is expected to achieve safe and permanent storage. According to the research published in the American Journal of Scientific Progress on the 4th, the facilities required for deep-sea storage of carbon dioxide are similar to the semi-submersible offshore platforms used for flammable ice mining. The injection of carbon dioxide is conducive to flammable ice mining, and both can be conducted simultaneously.
The geological storage of carbon dioxide is one of the important means to reduce the content of greenhouse gases. Conventional site selection includes deep saline layers, abandoned oil and gas fields, deep coal seams, etc. However, carbon dioxide may float up in the formation and there is a risk of leakage.
Zhang Dongxiao, the corresponding author of the paper and dean of the School of Engineering at Peking University, told Xinhua that the deep-sea storage makes full use of the high-pressure and low-temperature conditions of deep-sea sediments. Under such conditions, high-density liquid carbon dioxide will cause negative buoyancy, and carbon dioxide will react with water to form carbon dioxide hydrate. Two factors can prevent carbon dioxide from floating in the formation.
Teng Yihua, the first author of the paper and a PhD student at Peking University of Technology, said that compared with previous studies, this study considered the effects of dissolved components and hydrate formation in the stratum, and promoted the deep-sea geological storage of carbon dioxide from a simple conceptual model to accuracy Physical process simulation. The research results are expected to make deep-sea geological carbon storage a viable alternative to terrestrial carbon storage.
High Resistance Alloy is used to produce resistance elementof conductive material.Requirements including High mechanical strength, good corrosion resistance and oxidation resistance. Working temperature is usually at500 ℃. Commonly used with constantan chromium iron, iron chromium aluminum, nickel chromium, nickel, resistivity rho (20 ℃) is 1 Ω was/m or so. It is not used in the conduction of current, but with its high resistance to limit or control the current in the circuit, such as motor, potentiometer, standard resistors, potentiometers, slip line resistor resistance element and resistance line, etc.; For the using of high resistance in the pressure sensor,Temperature compensator and temperature measuring resistor of resistance element to creatte reflect strain, temperature, magnetic field and parameters; High resistance alloy can also be used as heating elements in the manufacture of the resistance heating equipment, could be applied in current, voltage regulating and the winding of control components.
Resistance Electrothermal Alloy
Resistance Alloy,Corrosion Resistant Alloy,Resistance Electrothermal Alloy,Fecral Resistance Heating Alloys
Jiangsu nickel alloy Co.,Ltd , https://www.xhalloy.com