desulfurization classification

Hybrid desulfurization tower: The open-type and closed-type desulfurization towers are mixed, which can be switched flexibly and inherit the advantages of open-type and closed-type desulfurization …

Desulfurization processes can be classified into two main groups "hydrodesulfurization based" and "non-hydrogen desulfurization based" according to …

First Online: 08 October 2017. 1256 Accesses. 5 Citations. Part of the book series: Topics in Mining, Metallurgy and Materials Engineering ( (TMMME)) Abstract. This chapter is …

As operation parameters that may influence desulfurization rates during piezo-desulfurization of fuel, we considered PH, ultrasonic power (US power), …

Due to the most recent environmental requirements, wide desulfurization has become an increasingly important way to obtain ultra-clean fuels for transportation of less than 15 ppmw of sulfur, such ...

This paper briefly introduces various methods of coal desulfurization (physical desulphurization, chemical desulfurization, biological desulfurization, etc.) and analyzes some problems existing in each method. The principle and research process of friction electrostatic separation technology and high gradient magnetic separation …

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 …

Article. Open access. Published: 12 February 2024. Experimental study on integrated desulfurization and denitrification of low-temperature flue gas by oxidation …

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 …

Carbon-Based Nanomaterials for Desulfurization: Classification, Preparation, and Evaluation: Science & Engineering Book Chapter | IGI Global. Tawfik A. Saleh, Taye …

Abstract. Desulfurization by molten caustic leaching (MCL) at 400–500 °C has been investigated in order to reduce the sulfur content of petroleum coke. Effective parameters on desulfurization of petroleum coke, other than temperature, include alkali to feed (petroleum coke) mass ratio, time and mesh size in the ranges of 0.5–1.5, 1–3 h ...

Sulfur and brimstone: Photocatalytic desulfurization is the most promising deep desulfurization method. This Review summarizes recent progress of photocatalytic desulfurization and emphasizes the …

Welcome to Hunan Huanda, an innovative leader in industrial catalysts in China. We provide catalysts, adsorbents and chemicals, including zinc oxide desulfurization catalysts, iron oxide desulfurization catalysts, COS hydrolysis catalysts, oxygen-removal catalysts, zinc oxide powder, activated carbon, and etc.

The alternative desulfurization methods are adsorptive desulfurization (ADS), 15–17 biodesulfurization (BDS), 18 extractive desulfurization (EDS) 19,20 and oxidative …

Results showed that when roasting at 650 °C for 120 s, the desulfurization efficiency was up to 76.98%, while the residual sulfur in the roasted ore was found to be 0.07%. HU et al [24] roasted high-sulfur bauxite ore at 600 °C for 60 min, and the dissolution test was performed at 240 °C and roasted for 60 min.

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 …

Desulfurization. Carbon-Based Nanomaterials for Desulfurization: Classification, Preparation, and Evaluation. Publisher: IGI Global. Authors: Tawfik A. Saleh. Taye Damola Shuaib. Gaddafi...

Desulfurization process by using piezo catalyst. In a Pyrex cell, 50 mg of piezocatalyst was used to oxidative desulfurize the model fuel and 25 mL of model fuel (TP or dibenzothiophene (DBTP)/n ...

Carbon-Based Nanomaterials for Desulfurization: Classification, Preparation, and Evaluation. The special interest in ultra-low sulfur diesel (ULSD) is informed by the need to comply with the ...

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 extraction of sulfur compounds using ILs for extractive desulfurization could be limited by the co-extraction of aromatic …

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 …

Advances in Resources Recovery of H 2 S: A Review of Desulfurization Processes and Catalysts Xiaohai Zheng National Engineering Research Center of …

CN-209333449-U chemical patent summary. [Translated] This application relates to a sulfuric acid velvet desulfurization and dust removal equipment, in particular to a cotton seed sulfuric acid velvet desulfurization and dust removal equipment; it includes a dust removal room, a first induced draft fan, a pulse dust collector, a second induced …

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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).

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).

To date, many desulfurization methods have been developed, among which the dry desulfurization technology shows good application prospects [4]. One such technique is the activated carbon (AC) adsorption-desorption method [5], which achieves desulfurization and recovers sulfur resources to address China's sulfur shortage [6].

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 ...

These findings demonstrated that photocatalysts A and B are good and effective catalysts for desulfurization of diesel fuel. Scientific Reports - Sonochemical synthesis of heterostructured ZnO ...

The last but not the least form of the desulfurization processes classification is based on the nature of employed processes; physico-chemical processes (Fig. 3.2). Catalytic conversion of organosulfur compounds involving the elimination of sulfur is the most advanced and commercialized technologies. Examples of such technologies …

The desulfurization activity and selective hydrogenation of Cu/ZnO adsorbents on the different polarity ratios of ZnO as supports was investigated in reactive adsorption desulfurization. The ZnO particles were synthesized by the hydrothermal process, and CuO/ZnO adsorbents were synthesized by incipient impregnation method. The structure …

The nozzles in the wet flue gas desulfurization system can be divided into single eccentric nozzles, double eccentric nozzles and spiral nozzles according to the spray form of the nozzles; according to the different inlet directions of the nozzles, they can be divided into tangential nozzles, axial nozzles and spiral nozzles. 1. Tangential nozzle, …