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The current review focuses on ADS of different types of absorbents like carbon, mesoporous materials, metal oxide, clay, industrial waste, metal-organic framework and zeolite-based materials, and the recent advances in ADS. The adsorbent regeneration techniques, mechanisms of adsorptive desulfurization, kinetics, thermodynamic are …
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The desulfurization yield, with the use of 30% H 2 O 2 solution, of commercial light oil was 75% following 24 h of photo-irradiation and the sulfur content in the light oil was reduced from 0.2 wt% to less than 0.05 wt%. 145 In these studies, 143–145 desulfurization was basically done by photodecomposition of sulfur-containing compounds in ...
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A high sulfur content is one of the challenges in the processing of refractory bauxites in China. The high carbon content of bauxite makes it more difficult to deal with. Desulfurization and decarbonization are the critical issues in the efficient exploitation of high-sulfur bauxite resources. An experimental study on the removal of sulfur and …
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Download scientific diagram | Classification of flue gas desulfurization (FGD) methods from publication: Sulfur dioxide removal: An overview of regenerative flue gas desulfurization and factors ...
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Classification of ship desulfurization towers There are three main types of desulfurization towers for ships: open desulfurization towers, closed desulfurization towers and hybrid desulfurization towers. Open desulfurization tower: The open desulfurization tower uses seawater to clean the flue gas. Seawater is usually slightly …
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A PTA@ MIL-101 (Cr)-diatomite composite as catalyst for efficient oxidative desulfurization. MIL-101 (Cr)@H 3 PW 12 O 40: heptane was used as the model fuel using H 2 O 2 as the oxidant. MeCN was used as the extraction solvents. The results showed the removal efficiency of 98.6% for DBT at 60 °C after 120 mins.
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We have performed a tentative classification of desulfurization process in TSCs depending on the factors involved: pH-induced desulfurizations, desulfurization in electrochemical processes, and desulfurization by oxidant reactants and others (radiation-, thermal-, solvent-, and coordination-induced desulfurizations).
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The effective and safe use of FGD gypsum in agricultural land is still debated in some countries even though its effectiveness in soil management has been reported in many studies. Thus, the changes in the levels of soil salinity, alkalinity, crop yield, and other physicochemical properties in different soil types and crops after …
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Carbon-Based Nanomaterials for Desulfurization: Classification, Preparation, and Evaluation: Science & Engineering Book Chapter | IGI Global. Tawfik A. Saleh, Taye …
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During the desulfurization process of coal-fired power plants, there are many related parameters that affect the desulfurization efficiency. So it is very difficult to measure the desulfurization efficiency directly. In this paper, in order to reflect the relationship between monitoring process parameters and desulfurization efficiency …
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The desulfurization of model feed containing DBT was about 12–22% while a better desulfurization was obtained up to 33–60% when achieving ODS using H 2 O 2 (Ox/S = 11) and the same IL . As a drawback, the …
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Post-combustion flue gas desulfurization and denitrification technologies are essential in achieving the full compliance of fine particulate matter (PM2.5, aerodynamic diameter less than 2.5 μm) air quality standards by 2030 in China as sulfur dioxide (SO2) and nitrogen oxides (NOX) are the main precursors of PM2.5. …
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Classification of flue gas desulfurization (FGD) methods. Full size image. FGD methods can be further divided into two categories, depending on the life cycle of sorbent: once-through or regenerative. The once-through method which involves scrubbing with lime or limestone is the more commonly utilized FGD due to its high removal …
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Carbon-based nanomaterials for desulfurization: classification, preparation, and evaluation / Tawfik A. Saleh [and 3 others] Advances in Nanotechnology transition metal catalysts in oxidative desulfurization (ODS) processes: nanotechnology applied to ods processing / Raffaele Saladino, Giorgia Botta, Marcello Crucianelli ...
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Download scientific diagram | Classification of carbon-based materials from publication: Carbon-Based Nanomaterials for Desulfurization: Classification, Preparation, and Evaluation | The special ...
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Advances in Resources Recovery of H 2 S: A Review of Desulfurization Processes and Catalysts Xiaohai Zheng National Engineering Research Center of …
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Federal Energy Technology Center, U.S. Department of Energy, 3610 Collins Ferry Road, Morgantown, West ia 26507
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In this review, strategies for crude oil desulfurization are evaluated by reviewing desulfurization literature. The most important characteristics of crude oil that affect the market price are its sulfur content and gravity. Low sulfur content of crude oil is particularly preferred. Petroleum includes crude oil, natural gas, and heavy oil.
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Energy BioSystems Corporation, 4200 Research Forest Dr., The Woodlands, TX 77381. *Corresponding author (e-mail: kagray@main). Received 7 August 1996; accepted 9 September 1996. The ...
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The phosphine-mediated desulfurization of substituted 1,2-dithianes to the corresponding tetrahydrothiophenes proceeds stereospecifically; for the corresponding reactions of cis- and trans-4,5-dihydroxy-1,2-dithianes 124 and 125/126, three different phosphines R 3 P (R = Et, Ph, (CH 2) 2 COOH·HCl) were employed <2003H(60)47>.The reaction is pH …
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Flue gas desulfurization (FGD) is one of the most effective emission control technologies used in power plants, and it plays a pivotal role in reducing SO 2 emissions 13. Several FGD systems have ...
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Ni/ZnO adsorbents with various Ni/Zn molar ratios were prepared by coprecipitation; their adsorption capacity in reactive adsorption desulfurization (RADS) of diesel oil was investigated. Ni/ZnO exhibits much higher adsorption performance than pure Ni and pure ZnO. The Ni content plays a crucial role in determining RADS activity over …
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The special interest in ultra-low sulfur diesel (ULSD) is informed by the need to comply with the strict government policy on low sulfur content of transportation fuels. Better knowledge of different factors that concern deep desulfurization of fuels is important to achieve ultra-low sulfur fuels and cheaper way of producing ULSD. Both the capital and operating cost …
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Download scientific diagram | Classification of carbon-based materials from publication: Carbon-Based Nanomaterials for Desulfurization: Classification, Preparation, and …
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High-sulfur petroleum coke (HSPC), that is a by-product from slag oil in the coking process of refining, shows versatility values in practical applications and, however, concentrates the majority of organic sulfur. Herein, we design and construct a highly effective CTAB@HPA composites to be explored for the catalytic oxidative …
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The general classification of the most common desulfurization processes is presented in Fig. 2. To remove sulfur-containing compounds one has to either physically …
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With the increasingly prominent global energy and environmental problems, more and more enterprises have been required to desulfurize the exhausted gases. Different enterprises have different demands for the desulfurization process, thus the choice of desulfurization process methods has become a focus of attention. Since the …
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The classification and properties, preparation method, desulfurization mechanism, and influencing factors of Ca-based adsorbents were discussed. This review indicated the challenges in the commercialization of dry Ca-based fixed-bed desulfurization and demonstrated the possible solutions. It is beneficial to promote …
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From the perspective of the hydrogen involvement; a broad classification desulfurization process can be made; hydrodesulfurization (HDS)-based and non HDS-based groups (Babich and Moulijn, 2003).
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The alternative desulfurization methods are adsorptive desulfurization (ADS), 15–17 biodesulfurization (BDS), 18 extractive desulfurization (EDS) 19,20 and oxidative …
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