REGENERATION PERFORMANCE AND CARBON CONSUMPTION OF SEMI-COKE AND ACTIVATED COKE FOR SO2 AND NO REMOVAL
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN BIO-INFORMATICS AND ENVIRONMENTAL ENGINEERING
Author(s): FENG QI , SONG DING , TINGYU ZHU , YANGYANG GUO , YURAN LI
Abstract: To decrease the operating cost of flue gas purification technologies based on carbon-based materials, the adsorption and desorption performances of low-price semi-coke and activated coke were compared for SO2 and NO removal in a simulated flue gas. The functional groups of two adsorbents before and after regeneration were determined by a Fourier transform infrared (FTIR) spectrometer, and were quantitatively tested using temperature programmed desorption (TPD) coupled with FTIR and acid-base titration. The results show that semicoke has higher adsorption amounts (16.2% for SO2 and 38.6% for NO) than activated coke because of its richer basic functional groups and lactone. After regeneration, the adsorption performances of semi-coke decrease because the active functional groups decreased and the micropores increased. Semi-coke has a better regeneration performance than activated coke. Semi-coke has a larger SO2 recovery of 7.2% and a smaller carbon consumption of 12% than activated coke
- Publication Date: 19-Apr-2015
- DOI: 10.15224/978-1-63248-043-9-104
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THE EFFECTS OF VISCOUS BULK COMPRESSIBILITY FOR NONCYLINDRICAL HELICES
Published In: 2ND INTERNATIONAL CONFERENCE ON ADVANCES IN CIVIL, STRUCTURAL AND CONSTRUCTION ENGINEERING
Author(s): HAKAN ARGESO , MEHMET H. OMURTAG , NIHAL ERATLI
Abstract: In this study, the effects of viscous bulk compressibility on the dynamic viscoelastic response of noncylindrical helicoidal rods are examined. For this aim, a viscoelastic model is proposed that takes standard type of distortional behavior and Kelvin type of bulk compressibility. Based on Timoshenko beam theory, two-nodded curvilinear elements are in Laplace space. The viscoelastic material properties are implemented into the formulation through the use of the correspondence principle (elastic-viscoelastic analogy). The analysis is carried out in the Laplace space and the results are transformed back to time space numerically by using the modified Durbin's algorithm. As sample problems, the noncylindrical helicoidal rods fixed from both ends which are subjected to dynamic step type of distributed loading are considered. Three different helicoidal rods that have different helical geometries are analyzed and their dynamic responses are compared. The effects of viscous bulk compressibili
- Publication Date: 19-Apr-2015
- DOI: 10.15224/978-1-63248-042-2-01
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- Downloads: 0