Thermodynamic description of the quaternary Mg(NO3)2–KNO3–NaNO3–LiNO3 system and investigation on the novel Mg(NO3)2 based nitrate salts with low temperature

Abstract The article presents the results of a study of low-temperature exposure on animal biological tissue using the novel prototype of a liquid nitrogen cryoapplicator. The data obtained are compared with the cryoapplicator characteristics cooled by nitrogen dioxide that are currently used for the atrial fibrillation treatment. Data analysis confirmed the liquid nitrogen cryoapplicators effectiveness and made it possible to highlight their advantages.

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Low-Temperature Catalytic Pyrolysis of Cellulose in Acidic [Bmim]Otf: A Mechanism Model of Product Evolution

10.21203/rs.3.rs-413874/v1 ◽

2021 ◽

Author(s):

Zhishuncheng Li ◽

GuangFei Qu ◽

Yanhua He ◽

Ping Ning ◽

Ruosong Xie ◽

...

Keyword(s):

Low Temperature ◽

Catalytic Pyrolysis ◽

High Efficiency ◽

Point Of View ◽

The Novel ◽

Catalytic Systems ◽

Mechanism Model ◽

Pyrolysis Behavior ◽

Product Evolution ◽

The Media

Abstract In this paper, we studied the catalytic pyrolysis behavior of microcrystalline cellulose (MC) in catalytic systems with acidic [Bmim]OTf as the media at temperatures of 140°C, 180°C, 220°C, 260°C, and 300°C. The pyrolysis behavior was investigated via SEM, XRD, FTIR, and GC-MS. During the catalysis of [Bmim]OTf, the pyrolysis temperature of MC was reduced to 140°C significantly and the crystalline structure of MC was destroyed rapidly. The novel synergistic catalytic effect of CF3SO3- and [Bmim]+ was discovered, which may lead to MC-selective cleavage of glycosidic, C-C, C-O, and C-H bonds, accompanied by new bond formation, which showed the production of many small molecular compounds. Furthermore, a novel mechanism model of evolution in [Bmim]OTf at low temperature was developed from a microscopic point of view. This research had obvious significance for the mechanism of directional regulation of target products, finally realizing the high efficiency utilization of biomass.

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Microwave dielectric properties of the novel low temperature fired Ni 0.5 Ti 0.5 NbO 4  + xwt%BiVO 4 (2.5  ≤  x  ≤  10) ceramics

Materials Letters ◽

10.1016/j.matlet.2017.12.027 ◽

2018 ◽

Vol 214 ◽

pp. 228-231 ◽

Cited By ~ 2

Author(s):

Xin Huang ◽

Huaiwu Zhang ◽

Yuanming Lai ◽

Gang Wang ◽

Jie Li

Keyword(s):

Dielectric Properties ◽

Low Temperature ◽

Microwave Dielectric Properties ◽

The Novel ◽

Microwave Dielectric

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Anaerobic treatment of domestic sewage at low temperature

Water Science & Technology ◽

10.2166/wst.2001.0171 ◽

2001 ◽

Vol 44 (4) ◽

pp. 33-40 ◽

Cited By ~ 28

Author(s):

T. Elmitwalli ◽

Gr. Zeeman ◽

G. Lettinga

Keyword(s):

Low Temperature ◽

Granular Sludge ◽

Anaerobic Treatment ◽

Domestic Sewage ◽

Uasb Reactor ◽

The Novel ◽

Reactor Performance ◽

Batch Tests ◽

Pre Treatment ◽

Attached Form

The results of research concerning the feasibility of anaerobic treatment of domestic sewage at low temperature are summarized in this article. The batch tests demonstrated a high biodegradability of domestic sewage at 20°C (74%). Both batch and continuous experiments for the treatment of domestic sewage showed that the removal of SS prior to anaerobic treatment of domestic sewage not only provides a stable reactor performance but also improves the removal of both colloidal (CODcol) and dissolved COD (CODdis). The results of the pre-treatment of domestic sewage in an anaerobic filter (AF) and an anaerobic hybrid (AH) reactor showed that the AF reactor is an efficient process for the removal of suspended COD (CODss), viz. 82%, at an HRT of 4 h and 13°C. The novel AF reactor consists of vertical sheets of reticulated polyurethane foam with knobs, where the biomass was only in attached form. For the treatment of pre-settled sewage at 13°C, the AH reactor, with granular sludge, showed a higher total COD (CODt) removal than the UASB reactor as a result of higher CODcol removal. Therefore, the performance of a two-step system, AF+AH (with granular sludge) reactor, was investigated with different HRTs at 13°C. For optimization of CODss and CODdis an HRT of 4+4 h is needed, while for optimization of CODcol removal an HRT of 4+8 h is required. A CODt removal of 71% was achieved with 60% conversion to methane from the removed CODt when the AF+AH system was operated at an HRT of 4+8 h at 13°C.

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Low Temperature Epitaxy of Si and SiGe by the Novel Centrifugal LPE Technique

10.7567/ssdm.1996.b-2-3 ◽

1996 ◽

Author(s):

Mitsuharu KONUMA

Keyword(s):

Low Temperature ◽

The Novel ◽

Low Temperature Epitaxy

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Novel EFHAT System With Low Temperature Heat Utilization

Volume 3: Turbo Expo 2003 ◽

10.1115/gt2003-38602 ◽

2003 ◽

Author(s):

Hongguang Jin ◽

Hongbin Zhao ◽

Zelong Liu ◽

Ruixian Cai

Keyword(s):

Low Temperature ◽

Latent Heat ◽

Thermal Efficiency ◽

Dew Point ◽

The Novel ◽

Clean Coal ◽

Exhaust Temperature ◽

Heat Utilization ◽

Air Turbine ◽

Temperature Heat

In this paper the low-temperature heat utilization was developed based on the externally fired humid air turbine (EFHAT) system with latent heat utilization. In the EFHAT, the exhaust temperature of gas turbine is not limited by dew point, so that the latent heat can be utilized to increase ability of humidification of air. Additionally, thermal efficiency of low temperature heat is usually quite low. In this paper, the low temperature heat is introduced and utilized in a saturator not only to enhance the air humidification but also to effectively use the latent heat. As a result, the thermal efficiency of the low temperature heat (200°C) can attain 20% or so, higher about 6∼8 percent points than conventional instance, while the latent heat utilization ratio is increased by about 10 percent points compared to usual EFHAT system with latent heat utilization. The novel EFHAT system combined with low temperature heat utilization will be a new orientation not only for the clean coal power generation system, but also for low-temperature heat utilization.

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