Structure Optimization Research Based on Numerical …
WFGD flue gas desulfurization system. The spray tower is the most frequently installed scrubber in the WFGD device, and its design structure will have a great influence on the
(PDF) Effect of Impeller Structure Parameters on Desulfurizer …
The hot metal desulfurization in Kanbara Reactor (KR) metal treatment was simulated in this study via a transient-coupled 3D numerical model of the two-phase flow, heat transfer, and particle ...
IOP Conference Series: Earth and Environmental Science …
5.2.1.The flue gas system The flue gas system is a kind of pipe among the outlet of economizer, the inlet of the SCR reactor, the outlet of the SCR reactor to make the flue gas flow smoothly. 1st International Global on Renewable Energy and Development (IGRED 2017)
PAPER OPEN ACCESS Design of ship exhaust gas …
Journal of Physics: Conference Series PAPER OPEN ACCESS Design of ship exhaust gas desulfurization control system based on S7-1500 PLC To cite this article: Qi Yin et al 2019 J. Phys.: Conf. Ser ...
Simultaneous Desulfurization and Denitrification by …
This study focused on the development of a novel process of H 2 O 2 /FeSO 4 preoxidation combined with wet flue gas desulfurization (WFGD) postabsorption for …
Analytical Investigation and Design of Flue Gas …
A wet flue gas desulfurizatio (FGD) system for boiler of capacity 300 kg/hr was investigated in this paper. It is a set of technologies used to remove sulphur dioxide from exhaust flue gases coming from fossil fuel power plants and from
VWHP LQFRDO ILUHGSRZHUSODQWV Design of …
When there is a large amount of foam overflow at the overflow pipe of the desulfurization tower, the degreasing system should be transported immediately to remove the foaming substances in the poisoned slurry. The filtrate produced by degreasing is not returned to the tower for reuse to reduce the
A deep-insight into the relation between structure of …
Catalytic oxidative desulfurization (CODS) has proven to be an efficient method for the removal of thiophene compounds in fuel oil, which is difficult to remove by traditional hydrodesulfurization [11], [12], [13].CODS is usually performed in the oil/extractant biphase system to realize in- situ sulfur removal, since the oxidized products with strong polarity can be …
Numerical study on the distribution of flue gas residence …
During the operation of the CSCR activated carbon desulfurization and denitrification flue gas purification system, due to the unreasonable design of flue gas pipe diameter and the uneven distribution of activated carbon porosity, the uniformity of flue gas distribution is prone to problems, which affects flue gas removal efficiency and increases operating costs. In this …
Study on the Integration of Flue Gas Waste Heat …
Desulfurization part was designed to operate the easy drawer cabinet structure, using the modified adsorption properties of activated coke processing SO2 in flue gas. The experimental results show that the processing system of dust removal and desulfurization efficiency is at 80%.
Dynamic learning of flue gas desulfurization process using …
SO 2 emissions are known to pose great harm to both human health and atmospheric air, and flue gas generated from coal-fueled power plant is the prime source of sulfur dioxide. For this reason, flue gas desulfurization (FGD) technology has found wide applications in most coal-fired power stations. Correctly describe the dynamic behavior of an FGD process is …
Design of Desulfurization Wastewater Treatment Control …
The process of desulfurization waste liquid treatment system includes NaSO3 oxidation, chemical flotation, activated carbon filtration, emission detection, and other major …
Effects of MN4-Type Coordination Structure in …
Oxidative desulfurization (ODS) is the promising new method for super deep desulfurization of fuel oil. The oxidative desulfurization performance of the metal-N 4-chelates metallophthalocyanines (MPcs) is related to the chemical properties of conjugate structures and the central metal ions.Herein, a biomimetic catalytic system composed of metallophthalocyanines (MPcR 4, M = …
Desulfurization and denitrification experiments in SDA system…
An integrated and effective method to realize simultaneous desulfurization and denitrification by the Spray Dryer Absorption (SDA) method combined with the NaClO 2 was carried out in this paper. The optimum conditions on desulfurization were verified, as well as the cooperative effect and removal mechanism between SO 2 and NO was speculated. The results …
Multiple field synergy mechanism of the desulfurization …
The semi-dry flue gas desulfurization in a powder-particle spouted bed is a complex multiphase reaction system, and its reaction principle is shown in Fig. 1. The sulfur-containing flue gas enters through the nozzle at the bottom of the spouted bed …
Optimization of Limestone-gypsum Wet Flue Gas …
During the desulfurization system is operated normally, the water is played an important role, not only is it supply water for towers, also as cooling water and washing water. So the stable operation of water subsystem is ensured the whole desulfurization system. For this, the new water system and the original water system are connected.
Predictive scheduling of wet flue gas desulfurization system …
The flue gas desulfurization system plays an important role in solving the sulfur dioxide pollution in varies of industries. In factories with large emissions like thermal power plants, the application of limestone/gypsum WFGD system(Córdoba, 2015) has reached a high proportion up to 87% of allpost-combustion sulfur dioxide removal ...
Research on energy recovery through hydraulic turbine system …
Since the desulfurization tower is an open system, the water falling in the bottom of tower no longer has kinetic energy and pressure energy, only potential energy remains. In process 6, the waste seawater is directly discharged through the valve, only the frictional loss and the local resistance loss will occur, and the excess energy in the ...
Effect of swirling spouting intensification structure on semi …
Effect of swirling spouting intensification structure on semi-dry desulfurization process in 3D spouted beds. Author links open overlay panel Jiali Du a, Feng Wu a, ... The semi-dry FGD process is a complex multiphase reaction system, and its desulfurization mechanism is shown in Fig. 1. The sulfur-containing flue gas enters through the bottom ...
Optimization of wet flue gas desulfurization system using recycled
The objective of this work is to optimize the wet flue gas desulfurization system using recycled waste oyster shells as high-grade limestone substitutes. The process model was developed for predicting the optimal blending ratio of waste oyster shells to limestone with constraints of desulfurization efficiency and purity of desulfurized gypsum ...
Numerical investigation on distribution characteristics of …
Among them, wet flue gas desulfurization (WFGD) is currently the most widely used desulfurization technology, due to its high SO 2 removal efficiency, low investment, simple structure, and stable operation [6]. Gypsum crystallization is the last stage of WFGD process (Table 1), and is vital for obtaining high-quality byproducts.
CN115475515A
The application discloses boats and ships desulfurization system guiding device includes: the device comprises a discharge pipe, a first flow director and a second flow director. The first fluid director is annular and is arranged in the discharge pipe and positioned between the water inlet and the water outlet of the discharge pipe. The second flow director is arranged in the …
The effect of magnesium content and roasting process on the structure …
The development of industrial slaked lime with a high specific surface area and thus improved desulfurization performance has recently attracted great attention in the field of dry desulfurization.In this paper, the structural evolution process from limestone to slaked lime was investigated, and the influence of magnesium content and roasting process on the specific …
Failure analysis of gas-gas heater tubes for a flue gas desulfurization …
In the FGD system, the gas-gas heater (GGH) is divided into leakage and non-leakage types depending on the leakage characteristics, and the FGD system of the failed power plant utilizes the non-leakage type GGH. The non-leakage type GGH is a state-of-the-art technology that can reduce dust and sulfur oxides emission concentrations.
Flue Gas Desulfurization (FGD)
Flue gas desulfurization (FGD) is the removal process of sulfur dioxide (SO2) from flue gases. Sulfur dioxide in gases is produced by the combustion of fossil fuels and many industrial processes such as gasoline refining as well as cement, paper, glass, steel, iron and copper production.See more on coalhandlingplants
FLUE GAS DESULFURIZATION
For larger diameter pipes, a T-Piece installation can be used. The FDM insertion depth can be selected to suit the flow velocity (see figure 1). For small diameter pipes, a Free-Stream …
Numerical investigation on distribution characteristics of …
Numerical investigation on distribution characteristics of oxidation air in a lime slurry desulfurization system with rotary jet agitators. Author ... SO 2 removal efficiency, low investment, simple structure, and stable operation [6]. Gypsum crystallization is the last stage of WFGD process (Table 1), and is vital for obtaining high-quality ...
Flue Gas Desulfurization (FGD) Working | Thermal Power …
Gypsum dewatering system in flue gas desulfurization (FGD) consists of following equipment: 1. Hydrocyclones. The hydrocyclone will be operated at a constant flowrate and consists of multiple clusters. Underflow from primary hydrocyclone to be 40~50% solids and overflow to be less than 5% solids. The overflow of primary hydrocyclone is return ...
Open Access proceedings Journal of Physics: Conference …
directly determines the whole system's effectiveness in desulfurization. The main part of the SO 2 absorption subsystem is the desulfurization tower, whose structure has a critical influence on SRE.
CN214513756U
The utility model discloses an anti-overflow structure of an overflow pipe of a desulfurization absorption tower, which comprises a throttle orifice plate, a ventilation window and a breathing hole; the throttling orifice plate is a flat plate; the center of the orifice plate is provided with an orifice; the throttling orifice plate is arranged at a flange interface on the overflow pipe; at ...
Failure analysis of the outlet pipeline and ball valve of the
FMEA was a systematic approach for the evaluation and identification of potential failures associated with the design and operation of pipeline valves. A literature review was …