نتایج جستجو برای: so2 oxidation

تعداد نتایج: 122483  

Journal: :IVES technical reviews 2023

In the previous decade, use of Yeast Derivatives (YD) was proposed as a new strategy to control wine oxidation (Comuzzo et al., 2015). These products are obtained from yeasts by autolytic or hydrolytic processes and then dried obtain commercial products. The aim this work carry out preliminary investigation YDs with different compositions in order (i) compare their capacity prevent white compar...

2015
Itsaso Auzmendi-Murua Francisco Guzman Joseph W. Bozzelli

Control of mercury emissions is one of the major challenges faced by power generation in coal burning and incineration plants, due to the increasing emission control regulations in the electricity generating sector. This study focuses on the elimination of mercury from the combustion flue gases via the oxidation of elemental mercury (non-soluble) into its oxidized form (soluble) by the addition...

2002
Edward H. Lee Roman C. Pausch Randy A. Rowland

The objective of this research was to determine the effects of elevated concentrations of carbon dioxide (CO2) and sulfur dioxide (SO2) on field-grown soybean. Soybeans (Glycine max L. Merr. cv. "Essex) were grown a full-season in open-top field chambers exposed to either ambient (350 #l L -j) or elevated CO2 (500 #l L -j) levels under two levels of SO2 (0.00 and 0.12 #l L-t). Enriched CO2, wit...

2001
Svetlana Bashkova Andrey Bagreev David C. Locke Teresa J. Bandosz

Adsorption of sulfur dioxide on carbonaceous materials has been extensively studied (1-18). Activated carbon and activated carbon fibers have been found to be efficient adsorbents for the low temperature removal of SO2. It is believed that sulfur dioxide is adsorbed with two adsorption energies on activated carbons (3-12). The low energy, about 50 kJ/mol, corresponds to weak physical adsorption...

Journal: :Physical chemistry chemical physics : PCCP 2013
Lifeng Ding A Ozgur Yazaydin

The CO2 capture performance of four zeolitic imidazolate frameworks (ZIFs), ZIF-10, ZIF-71, ZIF-68 and ZIF-69, was investigated in the presence of SO2 using molecular simulations. Our results show that SO2 is preferentially adsorbed over CO2. However, it also shows a cooperative effect on CO2 adsorption. In ZIF-10 and ZIF-71, the SO2 presence was found to have almost no effect on CO2 adsorption...

Journal: :Neurological research 2000
B Meyer R Schultheiss J Schramm

The objective of this study was to generate data that allow for estimation of the validity of oxygen saturation (SO2) values in superficial cortical capillaries as calculated by a microreflectometric system (EMPHO II). Capillary SO2 and tissue oxygen pressure (PtO2) were measured simultaneously in the cortex of n = 13 Wistar rats under normocapnic (PaCO2 = 36 mmHg) arterial normoxia (PaO2 = 92 ...

2017
Sha-Sha Wang Ying-Xin Zhang Feng Yang Zhong-Qin Huang Jun Tang Kang-Di Hu Hua Zhang

Sulfur dioxide (SO2), a gaseous signaling molecule in animal cells, has recently been found to play a physiological role in plants. Here we studied the role of SO2 in gibberellic acid (GA3)-induced programmed cell death (PCD) in barley (Hordeum vulgare L.) aleurone layers. The application of the SO2 donor (NaHSO3/Na2SO3, 1:3 M/M) effectively alleviated PCD in barley aleurone layers in a dose-de...

Journal: :Beverages 2023

Recently, non-thermal wine processing technologies have been proposed as alternatives to conventional winemaking processes, mostly with the aims improve quality, safety, and shelf-life. Winemakers typically rely on sulfites (SO2) prevent oxidation microbial spoilage, these processes can negatively affect quality aging potential. However, SO2 trigger allergic reactions, asthma, headaches in sens...

2012
Ching-Yu Tseng Yi-Chia Huang Shih-Yung Su Jing-Yang Huang Cheng-Hsiu Lai Chia-Chi Lung Chien-Chang Ho Yung-Po Liaw

BACKGROUND Many studies have examined the association between air pollutants (including sulfur dioxide [SO2], carbon monoxide [CO], nitrogen dioxide [NO2], nitric oxide [NO], ozone [O3], and particulate matter < 10 μm [PM10]) and lung cancer. However, data from previous studies on pathological cell types were limited, especially for SO2 exposure. We aimed to explore the association between SO2 ...

Journal: :Atmospheric Chemistry and Physics 2021

Abstract. Although the anthropogenic emissions of SO2 have decreased significantly in China, decrease SO42- PM2.5 is much smaller than that SO2. This implies an enhanced formation rate ambient air, and mechanism still under debate. work investigated particulate sulfate based on statistical analysis long-term observations Shijiazhuang Beijing supported with flow tube experiments. Our main findin...

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