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·Post combustion flue gas desulfurization and denitrification technologies are essential in achieving the full compliance of fine particulate matter aerodynamic diameter less than μm air quality standards by 2030 in China as sulfur dioxide SO2 and nitrogen oxides NOX are the main precursors of Some studies have addressed the
·In the industrial production of China the processing of phosphate rock volcanic eruptions kerosene combustion and aluminum smelting will lead to flue gas emissions containing a large amount of SO 2 is a highly irritating gas Because SO 2 is freely soluble in water and enters the respiratory tract it can generate corrosive sulfurous acid sulfuric acid and sulfate
·where Q g is gas flow rate A area is the cross section area of nozzle and d is the nozzle Finally the gas flow rate in the model can be determined by the formula Experiment Devices Figure 1 shows the flow chart a b illustrates two sorts of injection modes including Eccentric Top which means the magnesium vapor is injected from the eccentric
·Fuel gas desulfurization is an important technological step toward achieving environmental neutrality in industrial production The presence of sulfur compounds in fuel not only significantly increases the rate of corrosion processes but also increases the amount of sulfur oxides in flue gases Adsorption technologies are actively used to purify fuel Materials
·The decarbonization of BFG has always been the focus of the industrial sectors Some projects such as Ultra Low CO 2 Steelmaking ULCOS of EU and carbon capture and storage CCS Project of Emirates Steel Industry regarding low carbon steel manufacturing have started worldwide aiming to reduce CO 2 in a short period [3] [5] [6] CO 2 separation from
·The European Commission is encouraging the Cement Lime and Magnesium Oxide Manufacturing Industries to reutilize collected particulate matter or wastes in the emission control of SO 2 with a 100% removal efficiency Following this directive three different by products from the calcination of natural magnesite were selected in order to evaluate their
·The desulfurization performance of magnesium slag has been improved by the modified method of quenching hydration but it still cannot meet the industrial requirements Based on the research of additives for calcium based desulfurizer NaCl CaCl2 Na2SO4 CaSO4 Na2CO3 K2CO3 acetic acid and adipic acid are used for modification of quenching
·An industrial demonstration unit using natural gas as a heat source was built to calcine the by products of MgO wet flue gas desulfurization from power plants; influencing factors on the SO 2 content in calciner gas were comprehensively analyzed; and an advantageous recycling condition of MgO and SO 2 from by products was summarized Results showed that
·Catalysts play an important role in increasing the rate of hydrotreating reactions As discussed in Part 1 of the article hydrotreating uses either metals of group VI A Mo and W along with promoter metals of group VIII A Co and Ni or noble metals Pt and Pd supported on alumina silica alumina and/or zeolites as catalysts
·The method has a relatively high desulfurization efficiency but the calcium sulfate produced by the method causes equipment fouling and the calcium chloride generated by Cl Ca 2 in the flue gas causes corrosion to equipment 1 To improve the defect Yang et al have recently shown some improved FGD and semidry techniques 2 In all the
DOI / Corpus ID 246263559; The hydration mechanism of magnesium oxysulfate cement prepared by magnesium desulfurization byproducts article{Du2022TheHM title={The hydration mechanism of magnesium oxysulfate cement prepared by magnesium desulfurization byproducts} author={Huihui Du and Jiajie Li and Wen Ni and Congcong Hou
·Simultaneous Magnesia Regeneration and Sulfur Dioxide Generation in Magnesium based Flue Gas Desulfurization Process Journal of Cleaner Production IF Pub Date 2020 10 30 DOI /
·The main chemical composition obtained by XRF analysis is shown in Table it can be seen magnesium is the main element with an average content of wt% The presence of calcium is also important whose average content is wt% It is worth to mention the average sulfur content of wt% like SO 3 from the petroleum coke used as fuel for
the desulfurization slurry because of the formation of low solubility magnesium sul 7 11 A er the slurry has reached the saturation absorption the desulfurization product can be separated from the spent slurry by ltration to form the FGD residue and the main composition of the FGD residue is magnesium sul te hydrate
·The catalysts were prepared by supporting cobalt ferrite C o x F e 3 − x O 4 on the surfaces of sphere mesoporous silica M C M − 41 electro assisted catalytic oxidation of M g S O 3 displayed an improved oxidation rate under moderate temperatures Electric field and C o F e 2 O 4 / M C M − 41 exhibited a beneficial synergistic
·② Regeneration reaction desulfurization equipment However Magnesium oxide wet flue gas desulfurization technology
·An efficiency prediction model for land based magnesium desulfurization process was established by Jing et al 26 and the application results show that the model is reliable Anttila M Hamalainen R Tuominiemi S Method and an equipment for reducing the sulphur dioxide emissions of a marine engine Patent 0044335A USA 2008 Google
·More recently the catalytic ODS method is gaining tremendous attention within the scientific community as an efficient deep desulfurization technology [15] [16] [17] [18] ODS involves the oxidation reaction to transform organosulfur compounds into their corresponding sulfoxides and sulfones in the presence of an oxidizing agent under the influence of a suitable
·Adsorptive desulfurization involves the removal of organic sulfur compounds from petroleum fractions by physicochemical adsorption processes This is a low temperature and pressure technique and does not need costly hydrogen The efficiency of adsorptive desulfurization depends mostly on the adsorbent s textural properties
·The desulfurization reaction is mainly in the homogeneous phase and the proportion of magnesium bubble desulfurization could be ignored when the temperature is higher than 1523K View Show abstract
·Sulfur in refined or processed petroleum liquid fuels has harmful effects on humans agricultural crops and buildings when emitted into the environment during the combustion of the fuels The first part of this review focuses on the adsorptive desulfurization of liquid fuels using different types of adsorbent materials The second part is on the regeneration
Synopsis Cold and hot model experiments have been made to investigate the kinetics of desulfurization fhot metal by magnesium granules injected with carrier followings are the major remarks obtained 1 The desulfurization rate is remarkably enhanced when the bath surface is covered with inert gas 2 Itis theoretically predicted that a magResium particle of
showed excellent desulfurization and regeneration ability The desulfurization products were identified as sulfur Although polyethylenimine PEI showed an excellent removal perform ance for H 2 S 48 its inherently high viscosities restrict the practical utilization in gas cleaning applications Therefore PEI
