Selection of catalytically active elements for removing NO and CO from flue gas at low temperatures

2017 ◽  
Vol 41 (22) ◽  
pp. 13993-13999 ◽  
Author(s):  
Kaijie Liu ◽  
Qingbo Yu ◽  
Jinlin Liu ◽  
Kun Wang ◽  
Zhicheng Han ◽  
...  
Keyword(s):  
Flue Gas ◽  
Low Temperatures ◽  
Thermodynamic Study ◽  
Metal Elements ◽  
Active Elements ◽  
Catalytically Active ◽  
Selection Of

The metal elements Mn, Cu, Pb and V have been selected for removing NO and CO via a thermodynamic study.

scholarly journals Modyfikowanie HTPB (α,ω-dihydroksypolibutadienu) w reakcjach estryfikacji, silanizacji, epoksydacji i uwodornienia

2018 ◽  
pp. 30-45
Author(s):  
Michał Chmielarek ◽  
Paweł Maksimowski ◽  
Tomasz Gołofit ◽  
Katarzyna Cieślak ◽  
Wojciech Pawłowski ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Low Temperatures ◽  
Frost Resistance ◽  
High Energy ◽  
Insulating Materials ◽  
Rocket Propulsion ◽  
Materials Research ◽  
Selection Of

HTPB is a valuable comonomer for the preparation of polyurethanes. Thanks to its specific properties, it gives these materials frost resistance and excellent mechanical properties, especially at low temperatures. The polyurethanes thus obtained are used in the production of propellants used in space and military rocket propulsion, and are the basis for frost-resistant adhesives and insulating materials. Research on the selection of binder indicates the use of high energy polymers or modifications of previously used polymers improving their properties. The results of research on ways of changing the properties of HTPB through its modification and thus an increase of application possibilities will be presented.

Mechanism of CaO and Fe2O3 capture gaseous arsenic species in the flue gas: DFT combined thermodynamic study

Fuel ◽  
2022 ◽  
Vol 312 ◽  
pp. 122838
Author(s):  
Yang Yu ◽  
Ruihua Zhao ◽  
Xiaoyu Li ◽  
Juan Chen ◽  
Yong Dong
Keyword(s):  
Flue Gas ◽  
Arsenic Species ◽  
Thermodynamic Study

Perspectives of the advanced functional using of some ornamental bushy crops

2021 ◽  
pp. 212-222
Author(s):  
V.M. Yezhov ◽  
◽  
V.I. Dubrovskyi ◽  
O.Yu. Ansieiev ◽  
O.A. Olenich ◽  
...  
Keyword(s):  
Low Temperatures ◽  
Left Bank ◽  
New Variety ◽  
Common Lilac ◽  
Significant Yield ◽  
The Common ◽  
Ornamental Shrubs ◽  
The Rose ◽  
Selection Of

The authors present the results of the collection’s formation of some ornamental shrubs, long-term phenological observations of them and the selection of the best forms and breeding hybrids in the Left-Bank Lisosteppe of Ukraine. In particular, the characteristic of the vegetation of 20 varieties of common lilac collection is given. The estimation of the terms and duration of the crop flowering enable to divide its varieties into groups of early, average and late flowering. The high decorative value of most of the strains has been described as well as their resistance to low temperatures and pests. The additional analysis of the latest literature data has shown the significant yield of aromatic substances in the common lilac plant, with the predominance of alkanes and lilac alcohol. The results have been presented of 70 rose cultivars of adaptation to the growing zone conditions. There are 20 promise varieties of the crop, which are characterized by high decorative value, resistance to pathogens and low temperatures and duration of flowering. The characteristics of the new variety of roses of the floribunda group – Olexandra has been given created by the authors. Along side with the high decorative value, different types of the rose plant provide the significant yield of aromatic substances with the domination of alkanes, monoterpenes and 2-phenylethanol. The analysis of the literature data also has shown the presence of aromatic substances in the jasmine and mock-orange plants. The first is characterized with esters based on benzene, cis-jasmon and isophytol, the second – with some sesquiterpenes and epi-13-manol. The further research included the phenological evaluation of the of white cedar and juniper collection. The best selected forms were characterized with decorativeness, resistance to frost, pests and pathogens. The literature data have shown, that the aromatic complex of the crops cultures includes mainly monoterpenes and their derivatives – alcohols and ketones. As a result, it was concluded that it is necessary to expand research with ornamental bushy crops in the direction of evaluating of their aromatic properties.

Tensile Testing at Low Temperatures

2004 ◽  
pp. 239-249
Keyword(s):  
Low Temperatures ◽  
Tensile Testing ◽  
Fiber Reinforced Polymer ◽  
Compression Tests ◽  
Test Procedures ◽  
Safety Issues ◽  
Reinforced Polymer ◽  
Engineering Materials ◽  
Temperature Test ◽  
Selection Of

Abstract This chapter details low-temperature test procedures and equipment. It discusses the role temperature plays in the properties of typical engineering materials. The effect that lowering the temperature of a solid has on the mechanical properties of a material is summarized for three principal groups of engineering materials: metals, ceramics, and polymers (including fiber-reinforced polymer). The chapter describes the factors that influence the selection of tensile testing, along with a comparison of tensile and compression tests. It covers the parameters and standards related to tensile testing. The chapter discusses the factors involved in controlling test temperature. Finally, the chapter discusses the safety issues concerning the use of cooled methanol, liquid-nitrogen, and liquid helium.

Efficient Process to Develop Self-Sharpening Active Elements

2020 ◽  
Vol 1157 ◽  
pp. 188-193
Author(s):  
Victor Geantă ◽  
Ionelia Voiculescu ◽  
Emilia Binchiciu ◽  
Daniela Maria Iovanaș ◽  
Radu Ştefănoiu ◽  
...  
Keyword(s):  
Steel Substrate ◽  
High Hardness ◽  
Maximum Lifespan ◽  
Good Resistance ◽  
Metal Elements ◽  
Efficient Process ◽  
Active Elements ◽  
In Series ◽  
Resistance To Wear ◽  
Low Alloyed Steel

The paper presents technologies for the manufacturing of modulated bi-metal elements, used as interchangeable reinforcement, according to patent RO129865. The bi-metal was developed by surface build-up of functional layers that have increased hardness, on a low alloyed steel substrate, so as to ensure maximum lifespan in exploitation. Welded layers deposited on active areas has a thickness of 3 mm and have high hardness (about 50-60 HRC) in order to ensure a good resistance to wear by abrasion, possibly combined with fatigue, erosion or corrosion. The modulated elements sizes are equal to or higher than the wear additions, up to 10%, being dimensioned on the principles of preventive-repetitive maintenance. The interchangeable bi-metal elements are welded on the steel components of machines, used for hot or cold processing of parts and semi-finished products manufactured in series.

Activated Semi-coke in SO2 Removal from Flue Gas: Selection of Activation Methodology and Desulfurization Mechanism Study

2013 ◽  
Vol 27 (6) ◽  
pp. 3080-3089 ◽  
Author(s):  
Zheng Yan ◽  
Lili Liu ◽  
Yueling Zhang ◽  
Jinping Liang ◽  
Jinping Wang ◽  
...  
Keyword(s):  
Flue Gas ◽  
Mechanism Study ◽  
So2 Removal ◽  
Selection Of

Activated carbon-supported catalyst loading of CH4N2O for selective reduction of NO from flue gas at low temperatures

2019 ◽  
Vol 44 (26) ◽  
pp. 13523-13537 ◽  
Author(s):  
Kaijie Liu ◽  
Qingbo Yu ◽  
Baolan Wang ◽  
Huaqing Xie ◽  
Wenjun Duan ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Flue Gas ◽  
Low Temperatures ◽  
Supported Catalyst ◽  
Selective Reduction ◽  
Catalyst Loading ◽  
Reduction Of No
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