Download or read book Utilization of Sulfur Dioxide in Organic Acids Recovery and Sulfur Trioxide Conversion with Iron Oxide as Catalyst written by Yonghui Shi and published by . This book was released on 2006 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt: Sulfur dioxide (SO2) is a primary air pollutant and its emission is strictly restricted by pertinent regulations. Methodology is to use SO2 as a raw material to produce valuable chemicals while purifying the flue gas. Two approaches that use SO2 in the flue gas were put forward and examined. In the first approach, SO2 was used to recover acetic acid and lactic acid from the biological process. The second approach converted SO2 to SO3 through oxidation with iron oxide (Fe2O3) as catalyst. The experimental results of acetic and lactic acid recovery showed that both the reaction time and breakthrough time decreased with the increase of reaction temperature and SO2 flow rate. Analysis of the produced acetic and lactic acids demonstrated that the complete conversion of organic calcium salts to corresponding organic acids was not affected by the reaction conditions. The findings of this study indicated that recovering acetic acid and lactic acid with SO2 is both economical and environmentally beneficial. The oxidation of SO2 was greatly enhanced by either microscale or nanoscale Fe2O3 according to the experiment results. Nanoscale Fe2O3 performed much better than its microscale counterpart in catalyzing the SO2 oxidation. The conversion of SO2 was temperature dependent for both types of Fe2O3. The reaction orders with respect to the reactants sulfur dioxide and oxygen were determined when using microscale and nanoscale iron oxides as catalysts. Empirical Arrhenius expressions of the catalytic oxidation of sulfur dioxide oxidation were derived based on rate constants obtained at different temperatures.
Download or read book N A P C A Abstract Bulletin written by United States. Environmental Protection Agency and published by . This book was released on 1971 with total page 1068 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Dissertation Abstracts International written by and published by . This book was released on 2006 with total page 886 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Air Pollution Abstracts written by and published by . This book was released on 1971 with total page 866 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Utilization of Sulfur Dioxide and Sulfur Trioxide written by Warren Edgar Winsche and published by . This book was released on 1943 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration and published by . This book was released on 1976 with total page 638 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Conversion of Sulfur Dioxide to Sulfur Trioxide in the Presence of Vanadium Catalysts written by Willie Forrest McCormick and published by . This book was released on 1932 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book ERDA Energy Research Abstracts written by United States. Energy Research and Development Administration. Technical Information Center and published by . This book was released on 1976 with total page 1118 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Encyclopedic Dictionary of Named Processes in Chemical Technology written by Alan E. Comyns and published by CRC Press. This book was released on 2014-02-21 with total page 418 pages. Available in PDF, EPUB and Kindle. Book excerpt: Since the third edition of this reference was completed, there have been major changes in the global chemical industry. With less emphasis on new processes for making basic chemicals and more emphasis on pollution prevention and waste disposal, petrochemical processes are giving way to biochemical processes. These changes are reflected in the new p
Download or read book Advanced Byproduct Recovery written by and published by . This book was released on 1997 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The team of Arthur D. Little, Tufts University and Engelhard Corporation are conducting Phase 1 of a four and a half year, two-phase effort to develop and scale-up an advanced byproduct recovery technology that is a direct, single-stage, catalytic process for converting sulfur dioxide to elemental sulfur. This catalytic process reduces SO2 over a fluorite-type oxide (such as ceria and zirconia). The catalytic activity can be significantly promoted by active transition metals, such as copper. More than 95% elemental sulfur yield, corresponding to almost complete sulfur dioxide conversion, was obtained over a Cu-Ce-O oxide catalyst as part of an on-going DOE-sponsored, University Coal Research Program. This type of mixed metal oxide catalyst has stable activity, high selectivity for sulfur production, and is resistant to water and carbon dioxide poisoning. Tests with CO and CH4 reducing gases indicate that the catalyst has the potential for flexibility with regard to the composition of the reducing gas, making it attractive for utility use. The performance of the catalyst is consistently good over a range of SO2 inlet concentration (0.1 to 10%) indicating its flexibility in treating SO2 tail gases as well as high concentration streams.
Download or read book Removing Sulfur Dioxide by Carbon Monoxide Reduction written by Larry A. Haas and published by . This book was released on 1971 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfuric Acid from Sulfur Dioxide by Autoxidation in Mechanical Cells written by Carl Rampacek and published by . This book was released on 1963 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Sulfur Dioxide written by Daniel Bienstock and published by . This book was released on 1958 with total page 106 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Energy Information Abstracts written by and published by . This book was released on 1993 with total page 784 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Conversion of Sulfur Dioxide to Sulfur Trioxide with Commercial Vanadium Catalyst written by Hermann Laudani and published by . This book was released on 1935 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Commencement written by Iowa State University and published by . This book was released on 2006 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Official Gazette of the United States Patent Office written by United States. Patent Office and published by . This book was released on 1974 with total page 1728 pages. Available in PDF, EPUB and Kindle. Book excerpt:
