— This paper focused on the analysis of the crystal structure and phase transformation of CaCO 3 synthesized by simple solution method from M Ca NO 3 2 precursor and M Na 2 CO 3 precipitant at ambient temperature 300 K The pH of the sample solution at various reaction times of 5 10 15 and 30 min were measured and
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— Strategies for heavy oil desulfurization were evaluated by reviewing desulfurization literature and critically assessing the viability of the various methods for heavy oil The desulfurization methods including variations thereon that are discussed include hydrodesulfurization extractive desulfurization oxidative desulfurization
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— Experimental System and Method The desulfurization experiments under an atmosphere of simulated The phase composition analysis measured by XRD of modified limestone sulfated at high temperature shows that there are correspondingly more sulphates for silicate and aluminate complexes of calcium existing in the products which
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— Methods for Calcium Carbonate Content Measurement of Biocemented Soils November 2017; X ray diffraction XRD TOPAS thermogravimetric analysis TGA ASTM and washing methods The titration
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— CO2 can be sequestred into gypsum from gas desulfurization by carbonation to produce calcium carbonate CaCO3 However CaCO3 is produced as a mixture of polymorphs including calcite and vaterite
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— The thermal decomposition mechanism of K feldspar with industrial waste of FGD gypsum to produce soluble potassium K salt was investigated Effects of the reaction temperature and the amount of reagents used on the recovery of K were studied The results showed that increasing the reaction temperature and mass ratio of
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— The most common regeneration method used for water miscible DES is mixing the extract with water through vigorous shaking Thereafter filter and vaporize the water followed by drying at 110 120°C in a rotary evaporator As stated DESs are more economic green solvents as compared to ILs; hence an economic analysis and
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— After adding 3g of humic acid the desulfurization efficiency was improved obviously and the instantaneous efficiency of 100% lasting for about 40 minutes It can be seen that calcium carbonate in the addition of humic acid sodium can significantly improve the absorption of calcium carbonate performance of SO 2
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— The fast mixing of aqueous solutions of calcium chloride and sodium carbonate could immediately result in amorphous calcium carbonate ACC Under vigorous stirring the formed ACC in the precipitation system will dissolve first and then transform within minutes to produce crystalline forms of vaterite and calcite After that the solution
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— The application of Dry Sorbent Injection DSI desulfurization with sodium bicarbonate was investigated to reduce SO 2 emission from power sector The sorbent was injected directly into the combustion chamber of the 29 MW th grate boiler into a non standard area of high temperature approximately 700 °C while generally the DSI
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— This study aims to perform energy exergy economic and emission removal performance analysis of wet flue gas desulphurisation FGD systems in a coal fired power plant with 660 MW capacity
— In this paper the operation costs of wet flue gas desulfurization based on MgO CaO and CaCO3 under basic special and ultra low emission limits are analyzed from the unit price of desulfurizer and electricity price Guidance about desulfurizer selection in Liaoning Province under different electricity prices and different loads is given
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— The conventional method for desulfurization of liquid fuels such as gasoline diesel engine fuels jet fuels and other transportation fuels is HDS Although this method is efficient and is used in industry this method also has its disadvantages [12] The traditional method of HDS however is effective in separating many sulfur compounds
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