Fujian Longking Co.

Longyan, China

Fujian Longking Co.

Longyan, China
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Han X.,Fujian Longking Co.
Chinese Journal of Environmental Engineering | Year: 2017

Faced with severe pollution caused by China's coal-fired power plants, the collaborative particle-capturing functionality of wet flue gas desulfurization systems has attracted increasing attention for commercial applications. Starting from the fundamental theory, this study introduces equations for collisions between the catchers and particles, their interception, and particle diffusion. Then, a multiple-droplet-to-multiple-particle-trap model is derived. It is shown that droplets smaller than 245 μm are transported to the desulfurization tower when their settling velocity is less than the air velocity. The PM0.1, PM1, PM2.5, PM5, and PM10 removal efficiency of the droplets presents a U shape curve, with the removal efficiency of the 910 μm droplets being almost twice that of the 4 666 μm droplets. Even with the same mass concentration, the particle removal efficiency in the desulfurization tower depends significantly on the particle size distribution. © 2017, Science Press. All right reserved.


Huda M.N.,University of Dhaka | Dai M.,North China Electrical Power University | Lin L.,Fujian Longking Company
Energy and Fuels | Year: 2017

In this paper, the adsorption performance of modified fly ash was evaluated using a fixed-bed adsorption device. The influence of different inlet concentrations of mercury in simulated flue gas and different concentrations of HBr solution on the mercury absorption process was studied. The results showed that, with the increase of the inlet mercury concentration in the simulated flue gas, the adsorption capacity and adsorption rate of the modified fly ash increased. With the increase of the HBr concentration, the adsorption amount and adsorption rate of mercury in simulated fly ash also increased. It was also found that the adsorption process follows the pseudo-first-order adsorption kinetic model. © 2017 American Chemical Society.


This report studies DeNOx-SCR Catalyst in Global market, especially in North America, Europe, China, Japan, Southeast Asia and India, focuses on top manufacturers in global market, with capacity, production, price, revenue and market share for each manufacturer, covering Beijing Denox Environment & Technology Co., Ltd. CoaLogix Cormetech Datang Nanjing Environmental Protection Technology Co., Ltd. Dongfang KWH Envirotherm GmbH Fujian Longking Co., Ltd. Guodian Technology & Environment Group Corporation Limited Haldor Topsoe Hitachi Jiangsu Wonder Environmental Protection Technology Co., Ltd. Johnson Matthey Catalyst Nippon Shokubai Market Segment by Regions, this report splits Global into several key Regions, with production, consumption, revenue, market share and growth rate of DeNOx-SCR Catalyst in these regions, from 2011 to 2021 (forecast), like North America Europe China Japan Southeast Asia India Split by product type, with production, revenue, price, market share and growth rate of each type, can be divided into Honeycomb Plate Split by application, this report focuses on consumption, market share and growth rate of DeNOx-SCR Catalyst in each application, can be divided into 2 Global DeNOx-SCR Catalyst Market Competition by Manufacturers 2.1 Global DeNOx-SCR Catalyst Production and Share by Manufacturers (2015 and 2016) 2.2 Global DeNOx-SCR Catalyst Revenue and Share by Manufacturers (2015 and 2016) 2.3 Global DeNOx-SCR Catalyst Average Price by Manufacturers (2015 and 2016) 2.4 Manufacturers DeNOx-SCR Catalyst Manufacturing Base Distribution, Sales Area and Product Type 2.5 DeNOx-SCR Catalyst Market Competitive Situation and Trends 2.5.1 DeNOx-SCR Catalyst Market Concentration Rate 2.5.2 DeNOx-SCR Catalyst Market Share of Top 3 and Top 5 Manufacturers 2.5.3 Mergers & Acquisitions, Expansion 3 Global DeNOx-SCR Catalyst Production, Revenue (Value) by Region (2012-2017) 3.1 Global DeNOx-SCR Catalyst Production by Region (2012-2017) 3.2 Global DeNOx-SCR Catalyst Production Market Share by Region (2012-2017) 3.3 Global DeNOx-SCR Catalyst Revenue (Value) and Market Share by Region (2012-2017) 3.4 Global DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2012-2017) 3.5 North America DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2012-2017) 3.6 Europe DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2012-2017) 3.7 China DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2012-2017) 3.8 Japan DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2012-2017) 3.9 Southeast Asia DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2012-2017) 3.10 India DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2012-2017) 5 Global DeNOx-SCR Catalyst Production, Revenue (Value), Price Trend by Type 5.1 Global DeNOx-SCR Catalyst Production and Market Share by Type (2012-2017) 5.2 Global DeNOx-SCR Catalyst Revenue and Market Share by Type (2012-2017) 5.3 Global DeNOx-SCR Catalyst Price by Type (2012-2017) 5.4 Global DeNOx-SCR Catalyst Production Growth by Type (2012-2017) 6 Global DeNOx-SCR Catalyst Market Analysis by Application 6.1 Global DeNOx-SCR Catalyst Consumption and Market Share by Application (2012-2017) 6.2 Global DeNOx-SCR Catalyst Consumption Growth Rate by Application (2012-2017) 6.3 Market Drivers and Opportunities 6.3.1 Potential Applications 6.3.2 Emerging Markets/Countries 7 Global DeNOx-SCR Catalyst Manufacturers Profiles/Analysis 7.1 Beijing Denox Environment & Technology Co., Ltd. 7.1.1 Company Basic Information, Manufacturing Base and Its Competitors 7.1.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.1.2.1 Product A 7.1.2.2 Product B 7.1.3 Beijing Denox Environment & Technology Co., Ltd. DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.1.4 Main Business/Business Overview 7.2 CoaLogix 7.2.1 Company Basic Information, Manufacturing Base and Its Competitors 7.2.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.2.2.1 Product A 7.2.2.2 Product B 7.2.3 CoaLogix DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.2.4 Main Business/Business Overview 7.3 Cormetech 7.3.1 Company Basic Information, Manufacturing Base and Its Competitors 7.3.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.3.2.1 Product A 7.3.2.2 Product B 7.3.3 Cormetech DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.3.4 Main Business/Business Overview 7.4 Datang Nanjing Environmental Protection Technology Co., Ltd. 7.4.1 Company Basic Information, Manufacturing Base and Its Competitors 7.4.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.4.2.1 Product A 7.4.2.2 Product B 7.4.3 Datang Nanjing Environmental Protection Technology Co., Ltd. DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.4.4 Main Business/Business Overview 7.5 Dongfang KWH 7.5.1 Company Basic Information, Manufacturing Base and Its Competitors 7.5.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.5.2.1 Product A 7.5.2.2 Product B 7.5.3 Dongfang KWH DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.5.4 Main Business/Business Overview 7.6 Envirotherm GmbH 7.6.1 Company Basic Information, Manufacturing Base and Its Competitors 7.6.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.6.2.1 Product A 7.6.2.2 Product B 7.6.3 Envirotherm GmbH DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.6.4 Main Business/Business Overview 7.7 Fujian Longking Co., Ltd. 7.7.1 Company Basic Information, Manufacturing Base and Its Competitors 7.7.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.7.2.1 Product A 7.7.2.2 Product B 7.7.3 Fujian Longking Co., Ltd. DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.7.4 Main Business/Business Overview 7.8 Guodian Technology & Environment Group Corporation Limited 7.8.1 Company Basic Information, Manufacturing Base and Its Competitors 7.8.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.8.2.1 Product A 7.8.2.2 Product B 7.8.3 Guodian Technology & Environment Group Corporation Limited DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.8.4 Main Business/Business Overview 7.9 Haldor Topsoe 7.9.1 Company Basic Information, Manufacturing Base and Its Competitors 7.9.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.9.2.1 Product A 7.9.2.2 Product B 7.9.3 Haldor Topsoe DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.9.4 Main Business/Business Overview 7.10 Hitachi 7.10.1 Company Basic Information, Manufacturing Base and Its Competitors 7.10.2 DeNOx-SCR Catalyst Product Type, Application and Specification 7.10.2.1 Product A 7.10.2.2 Product B 7.10.3 Hitachi DeNOx-SCR Catalyst Production, Revenue, Price and Gross Margin (2015 and 2016) 7.10.4 Main Business/Business Overview 7.11 Jiangsu Wonder Environmental Protection Technology Co., Ltd. 7.12 Johnson Matthey Catalyst 7.13 Nippon Shokubai For more information, please visit http://www.wiseguyreports.com


Guo B.Y.,University of New South Wales | Hou Q.F.,University of New South Wales | Yu A.B.,University of New South Wales | Li L.F.,Fujian Longking Co. | Guo J.,Fujian Longking Co.
Chemical Engineering Research and Design | Year: 2013

Perforated plates are used in many applications such as electrostatic precipitators in environmental control systems as a method of fluid flow control. The detailed structure of perforated plates causes difficulties in the design and optimization of systems by mathematical modelling. Hence, a simplified model for the perforated plates is important. In the current work, numerical experiments based on Computational Fluid Dynamics (CFD) are carried out at a microscopic, unit cell scale. The effects of a series of parameters on the flow pattern and pressure loss are investigated, including Reynolds number, open porosity, orifice diameter, plate thickness, surface roughness and plate inclination angle. Good agreement is observed between the current predictions and empirical equations/experimental data in the literature. The pressure loss is found to be determined by the large flow structures in the expansion behind the plate. The results can be potentially used for the modelling of flow distribution in electrostatic precipitators in particular. © 2012 The Institution of Chemical Engineers.


Guo B.Y.,University of New South Wales | Guo J.,Fujian Longking Co. | Yu A.B.,University of New South Wales
Journal of Electrostatics | Year: 2014

The paper presents a general Control Volume model for electric field simulation in wire-plate type electrostatic precipitators, along with a new injection law for charge density. The model is validated against empirical equations and experimental data in the literature when applied to the wire-plate and point-plate configurations. The voltage current characteristics and detailed distribution of field and charge density are characterized, particularly for the case of barbed wire electrode. The effects of geometric variations, such as the sharpness of the tip and the direction of the needles with respect to the plate, are investigated. © 2014 Elsevier B.V.


Zhang Z.,South China University of Technology | Xie Y.,South China University of Technology | Yuan Z.,Fujian Longking Co.
Zhongguo Dianji Gongcheng Xuebao/Proceedings of the Chinese Society of Electrical Engineering | Year: 2011

The series-parallel resonant converter is known to have combined merits of the series resonant converter and parallel resonant converter. However, it has a three-element LCC structure with multi-resonant modes, which makes it difficult to analyze and control. In order to study the converter performance under continuous current mode, this paper demonstrated the operation principle of this converter, drew the state track diagram, and derived the trajectory equations. Finally, a simple and effective trajectory control method was given. The experimental result shows that the analysis and design method of the state-plane is effective. Trajectory control system has excellent transient performance and can achieve the new steady state in minimum time. © Chin. Soc. for Elec. Eng.


Zheng K.,Fujian Longking Co.
Chinese Journal of Environmental Engineering | Year: 2014

An experimental setup for large-scale pulse-jet cleaning system was established. And systematic tests for blowing performance in the systems combining unused filter bags without dust or used filter bags with dust (both were 8 m length) and different sizes (76 mm and bigger than 76 mm) and types of pulse valve were performed by testing the pressure peak in the pulse-jet tubes, the acceleration and pressure peak in the filter bags. The results show that the high-speed return airflows result in a second pressure peak. Test results also prove that, due to its lower gas permeability, a filter bag with dust has a higher lowest pressure peak than a new one and the change of pressure peak for the whole filter bag decreases with the decrease of the air permeability of filter bags. Furthermore, the gas permeability of filter bags is inversely proportional to engineering using time, but is also influenced by dust characteristics under different flue gas conditions. Experiments also indicate that in order to ensure that a single pulse valve could perform effective pulse-jet cleaning on filter bags, the number of filter bags and the size of pulse valve should be carefully chosen according to the obtained lowest pressure peak. ©, 2014, Science Press. All right reserved.


Zhang Z.,South China University of Technology | Xie Y.,South China University of Technology | Yuan Z.,Fujian Longking Co.
Diangong Jishu Xuebao/Transactions of China Electrotechnical Society | Year: 2013

In order to study the circuit characteristics of the capacitive output filter series-parallel resonant converter (LCC), the modeling and analysis is presented. Firstly, for two operating modes, time-domain mathematical model is obtained respectively. Then, base on the mathematical models, the circuit characteristics of LCC resonant converter is studied, and the computation expressions are deduced for the circuit parameters design, and the relationship between the resonant tank component values choice and the circuit characteristics is discussed. It is pointed out that the parallel-to-series-capacitor ratio is an important factor for the circuit performance. Finally, a design method of the LCC resonant converter is provided according to design requirements, and the design process is introduced. The simulation and experimental results are presented.


Trademark
Fujian Longking Co. | Date: 2011-06-28

Electrostatic emission control devices, namely, electrostatic precipitators for reducing particulate emission in industrial applications.


Trademark
Fujian Longking Co. | Date: 2013-10-08

Transformers; commutators; electrical current reducers; inverters; voltage regulators.

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