نتایج جستجو برای: alumina sulfuric acid

تعداد نتایج: 758307  

Journal: :Environmental science and pollution research international 2016
Jiayu Huang Hongmei Wang Yingjie Shi Fan Zhang Xiaoqing Dang Hui Zhang Yun Shu Shuang Deng Yu Liu

The use of a wet electrostatic precipitator (WESP) is often regarded as a viable option to reduce sulfuric acid mist emitted from the wet flue gas desulfurization (WFGD) tower in coal-fired power plants. In this study, a pilot-scale wet electrostatic precipitator equipped with a wall-cooled collection electrode is investigated for the control of sulfuric acid mist from a simulated WFGD system. ...

2008
John A. Staser John W. Weidner

The thermochemical cycle involving the interconversion between sulfur dioxide and sulfuric acid is a promising method for efficient, large-scale production of hydrogen. A key step in the process is the oxidation of sulfur dioxide to sulfuric acid in an electrolyzer. Gaseous SO2 fed to a proton exchange membrane PEM electrolyzer was previously investigated and was shown to be a promising system ...

Journal: :نشریه دانشکده فنی 0
اعظم حمامی دانشگاه شهید باهنر کرمان امیرعلی یوزباشی پژوهشگاه مواد و انرژی محمد رنجبر دانشگاه باهنر کرمان محمد پازوکی پژوهشگاه مواد و انرژی

there are no appreciable amounts of nickel resources in iran; therefore, secondary resources of this element are to be more considered in future. spent nickel catalysts that are used in various industrial processes are one of them. for example nickel catalyst that is used in hydrogenation of edible oil have large amounts of nickel and they are generally supported on porous materials like silica...

DOR: 98.1000/2383-1251.1398.6.95.11.1.1578.41 Extended Abstract Introduction: White Astragalus (Astragalus gossypinus Fisherr.) is one of the valuable plants for producing gum, which is of critical importance in soil conservation and the economy of the country. This plant is propagated by seed; its seeds are in the natural state of dormancy. Therefore, recognizing the factors affecting dorm...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2008
Renyi Zhang Alexei F Khalizov Joakim Pagels Dan Zhang Huaxin Xue Peter H McMurry

The atmospheric effects of soot aerosols include interference with radiative transfer, visibility impairment, and alteration of cloud formation and are highly sensitive to the manner by which soot is internally mixed with other aerosol constituents. We present experimental studies to show that soot particles acquire a large mass fraction of sulfuric acid during atmospheric aging, considerably a...

Journal: :The Bulletin of Tokyo Dental College 2010
Yuji Suyama Satoru Takaku Yoshikazu Okawa Takashi Matsukubo

Dental erosion, and specifically its symptoms, has long been studied in Japan as an occupational dental disease. However, in recent years, few studies have investigated the development of this disease or labor hygiene management aimed at its prevention. As a result, interest in dental erosion is comparatively low, even among dental professionals. Our investigation at a lead storage battery fact...

Journal: :journal of the iranian chemical research 0
mehdi fallah-mehrjardi marine chemistry department, khoramshahr marine science and technology university,khoramshahr 669, iran ali reza kiasat chemistry department, college of science, shahid chamran university, ahvaz 61357-4-3169, iran

silica sulfuric acid is employed as solid acid catalyst for the clean and less hazardousprotection of carbonyl compounds as 2,4-dinitrophenylhydrazone under solvent-free conditions.

Journal: :Biotechnology and bioengineering 2002
Nathan S Mosier Christine M Ladisch Michael R Ladisch

Cellulolytic enzymes consist of a catalytic domain, a linking peptide, and a binding domain. The paper describes research on carboxylic acids that have potential as catalytic domains for constructing organic macromolecules for use in cellulose hydrolysis that mimic the action of enzymes. The tested domains consist of the series of mono-, di-, and tricarboxylic acids with a range of pK(a)'s. Thi...

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