— Thermogravimetric analysis indicated that the maleic anhydride grafted desulfurized rubber powder and desulfurized rubber powder possessed different thermal properties and structure The results of scanning electron microscopy and elemental analysis illustrated that the surface of the desulfurized rubber powder was covered with a layer of
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— 1 Introduction Flue gas desulfurization FGD involves the removal of sulphur dioxide SO 2 contained in gases produced by the combustion of fossil fuels such as coal oil municipal solid waste and many industrial 2 emissions are a primary contributor to acid rain and have been regulated by every industrialized nation in
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— An energy minimum multiscale model was adjusted to simulate the mesoscale structure of the flue gas desulfurization process in a powder particle spouted bed and verified experimentally The obtained results revealed that the spout morphology simulated by the adjusted mesoscale drag model was unstable and discontinuous
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The main material in the desulfurization project is limestone powder the fineness is generally required to pass 90% of 325 meshes or 95% of 250 days and the preparation of limestone powder is generally divided into vertical roller mill process and ball mill process As the desulfurization problem has become particularly prominent in recent years the
— DOI / Corpus ID 238662471; Preparation and characterization of maleic anhydride‐grafted desulfurization rubber powder by free‐radical polymerization
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— For the desulfurization field the requirements for stone powder are generally 250 mesh or 325 mesh To prepare such fine desulfurization stone powder basically the mill mainly adopts Raymond mill pendulum mill ball mill or European plate mill In the past Raymond mill and ball mill were widely used
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— Spray nozzle technology has improved greatly since scrubbers were first installed on utility units It is now possible to achieve 98% to 99% SO 2 removal in systems with no packing or trays An
— Introduction Removal of SO x from flue gas emitted during combustion of fossil fuels has been a worldwide concern since the 1970s Various technologies for flue gas desulfurization FGD can be grossly classified into three different types Miller 1986 Soud 1995 wet scrubbers semi dry processes such as spray drying and sorbent injection
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The end product FA SD FGDS is a dry powder which consists of FA and the reaction products of the injected slaked lime and the SO 2 in the flue gases containing CaSO 3 CaSO 4 Ca OH 2 CaCO 3 and moisture The efficiency of the process is from 70 to 80% up to 90% Seawater desulfurization technology applies the natural alkalinity of
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— Semidry flue gas desulfurization with a rapidly hydrated sorbent was studied in a pilot scale circulating fluidized bed CFB experimental facility The desulfurization efficiency was measured for various operating parameters including the sorbent recirculation rate and the water spray method The experimental results show that the
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In the flue gas ammonia desulfurization process of the coal chemical industry ammonium sulfate slurry in the desulfurization tower often foams and overflows which wastes resources and pollutes the environment The solution to this problem remains largely unknown This paper aims to reveal the causes of foaming by analyzing foam composition ammonia
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— Flue gas desulfurization FGD technology is considered to be a reliable and effective way of SO 2 remove Semi dry FGD technology is proposed and developed to compensate the disadvantages of the dry method and the wet method and it is also an alternative method in water deficient areas [2 3] Since then the semi dry method
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— The changes in δ 13 C δ 15 N and δ 18 O after desulfurization were close to the standard deviation values and did not affect the analysis of black powder Desulfurization and stable isotope analysis were performed on 12 black powder samples obtained from cases that happened in eight different areas in China and the carbon
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desulfurization technology proposed by the Nippon Steel Co in the 1960s 1 which ensured of stable desulfurization low desulfurization agent consumption rapid treatment and low cost of deep desulfurization due to its good desulfuriza tion kinetic conditions Currently the KR desulfurization
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