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The Research of the Detecting Means for the New Model of the Gas Density in Recycled Waste Gas Furnace

Shen Yuansheng,Liu Yongjie,Wang Deyong,Li Benwen

Strategic Study of CAE 2005, Volume 7, Issue 5,   Pages 70-72

Abstract:

By analyzing the feature of the process for the recycled waste gas in furnace, let the volume of wasteflow of waste gas and the recycled times of waste gas which goes into combustion-supporting air in furnace

Keywords： tested model     combustion material     combustion ratio     recycling furnace    

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Extension of pilot tests of cyanide elimination by ozone from blast furnace gas washing water through

Ismael Matino, Valentina Colla, Teresa A. Branca

Frontiers of Chemical Science and Engineering 2018, Volume 12, Issue 4,   Pages 718-730 doi: 10.1007/s11705-018-1771-2

Abstract:

For improving wastewater quality, one of the dare of steelworks is reducing cyanide in wastewater of gas washing treatment of blast furnaces. Costs of existing treatments, stringent environmental regulations and changeable composition of water from gas treatment, have led to study how available treatments can be modified and to examine new ones. Ozonation is one of cyanide treatments, tested within a European project. A process model was set up with Aspen Plus®, to assess operating conditions and wastewater distinctive characteristics and to demonstrate treatment robustness. Process was modeled by theoretical reactors, taking into account all more affecting reactions. A genetic algorithm was exploited to find kinetic parameters of these reactions. After validation, the model was used to analyse scenarios, by considering also real contexts. Pilot tests were extended, process knowledge was enhanced and suggestions were obtained. To promote cyanide removal with ozone, temperature and pH values were 30°C and 10, respectively. With an ozone (mg/h)/water (L/h) ratio of 100 mg/L, batch mode ensure reaching cyanide regulation limit (0.2 mg/L) after maximum 4.5 h, if initial amount was less than 20 mg/L. Higher removal was obtained than in continuous mode due to constraints related to this last run. Higher wastewater contamination needed further time and more ozone.

Keywords： blast furnace     cyanide removal     gas washing water     modeling and simulation     ozonation    

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Copper fractal growth during recycling from waste printed circuit boards by slurry electrolysis

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 6, doi: 10.1007/s11783-021-1405-7

Abstract:

• Copper fractal growth was observed during WPCBs recycling by slurry

Keywords： Dendritic copper     Fractal growth     WPCBs     Slurry electrolysis    

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EXPLORING THE RECYCLING OF MANURE FROM URBAN LIVESTOCK FARMS: A CASE STUDY IN ETHIOPIA

Frontiers of Agricultural Science and Engineering 2021, Volume 8, Issue 1,

Abstract: intensification, and (4) improved technology, on food-protein self-sufficiency, manure nitrogen (N) recycling

Costs of waste recycling were high and indicate the need for government incentives.

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Assessing the potential of crop residue recycling in China and technology options based on a bottom-up

Lili QU,Tianzhu ZHANG,Wei LU

Frontiers of Environmental Science & Engineering 2014, Volume 8, Issue 4,   Pages 570-579 doi: 10.1007/s11783-013-0604-2

Abstract: analysis method, and the constraint optimization method to establish the potential of crop residue recyclingpotential and selecting key crop residue recycling technologies for operation between 2010 and 2030.Market mechanisms are also improving the development of the crop residue recycling industry.The economic benefit of crop residue recycling is expected to be worth 132 billion CNY in 2030 accordingKey crop residue recycling technologies preferred such as liquefaction, amination, silo, co-firing straw

Keywords： China     crop residue     recycling potential     technology options    

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An investigation of reaction furnace temperatures and sulfur recovery

S. ASADI, M. PAKIZEH, M. POURAFSHARI CHENAR

Frontiers of Chemical Science and Engineering 2011, Volume 5, Issue 3,   Pages 362-371 doi: 10.1007/s11705-011-1106-z

Abstract: In a modern day sulfur recovery unit (SRU), hydrogen sulfide (H S) is converted to elemental sulfur using a modified Claus unit. A process simulator called TSWEET has been used to consider the Claus process. The effect of the H S concentration, the H S/CO ratio, the input air flow rate, the acid gas flow of the acid gas (AG) splitter and the temperature of the acid gas feed at three different oxygen concentrations (in the air input) on the main burner temperature have been studied. Also the effects of the tail gas ratio and the catalytic bed type on the sulfur recovery were studied. The bed temperatures were optimized in order to enhance the sulfur recovery for a given acid gas feed and air input. Initially when the fraction of AG splitter flow to the main burner was increased, the temperature of the main burner increased to a maximum but then decreased sharply when the flow fraction was further increased; this was true for all three concentrations of oxygen. However, if three other parameters (the concentration of H S, the ratio H S/CO and the flow rate of air) were increased, the temperature of the main burner increased monotonically. This increase had different slopes depending on the oxygen concentration in the input air. But, by increasing the temperature of the acid gas feed, the temperature of the main burner decreased. In general, the concentration of oxygen in the input air into the Claus unit had little effect on the temperature of the main burner (This is true for all parameters). The optimal catalytic bed temperature, tail gas ratio and type of catalytic bed were also determined and these conditions are a minimum temperature of 300°C, a ratio of 2.0 and a hydrolysing Claus bed.

Keywords： Claus unit     concentration of H2S     tail gas ratio     sulfur recovery     catalytic bed    

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Resources Recycling

Qiu Dingfan

Strategic Study of CAE 2002, Volume 4, Issue 10,   Pages 31-35

Abstract: natural resources (minerals) unlimitedly, but make full use of them repeatedly and establish resources recyclingResources recycling is a kind of science that studies how to build the recycling system for making fullResources recycling is a law, and also an only road for human being living in harmony with nature andSocializing resources recycling as early as possible may completely solve the problems of resource shortageBuilding a society of resources recycling is a system engineering.

Keywords： resources     resources recycling     resources exploitation     society of resources recycling    

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Suggestions on Speeding up Recycling of Power Battery for New Energy Vehicles in China

Zhao Shijia,Xu Nan,Qiao Yingjun and Yang Bo

Strategic Study of CAE 2018, Volume 20, Issue 1,   Pages 144-148 doi: 10.15302/J-SSCAE-2018.01.021

Abstract: The ensuing battery recycling problem of the new energy vehicle has become a major issue.Power batteries without effective recycling will result in serious environmental pollution and a wasteThe United States, Germany, Japan, and other developed countries have planned for power battery recyclingAfter extensively analyzing the existing problems of power battery recycling, concrete suggestions for

Keywords： new energy vehicle     power battery     recycling    

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Data-driven soft sensors in blast furnace ironmaking: a survey Review Article

Yueyang LUO, Xinmin ZHANG, Manabu KANO, Long DENG, Chunjie YANG, Zhihuan SONG

Frontiers of Information Technology & Electronic Engineering 2023, Volume 24, Issue 3,   Pages 327-354 doi: 10.1631/FITEE.2200366

Abstract: The is a highly energy-intensive, highly polluting, and extremely complex reactor in the . are a key technology for predicting molten iron quality indices reflecting energy consumption and operation stability, and play an important role in saving energy, reducing emissions, improving product quality, and producing economic benefits. With the advancement of the Internet of Things, big data, and artificial intelligence, data-driven in es have attracted increasing attention from researchers, but there has been no systematic review of the data-driven in the . This review covers the state-of-the-art studies of data-driven technologies in the . Specifically, we first conduct a comprehensive overview of various data-driven soft sensor modeling methods (multiscale methods, adaptive methods, , etc.) used in ironmaking. Second, the important applications of data-driven in ironmaking (silicon content, molten iron temperature, gas utilization rate, etc.) are classified. Finally, the potential challenges and future development trends of data-driven in ironmaking applications are discussed, including digital twin, multi-source data fusion, and carbon peaking and carbon neutrality.

Keywords： Soft sensors     Data-driven modeling     Machine learning     Deep learning     Blast furnace     Ironmaking process    

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Optimal Timing and Recycling Operation Mode for Electro-Mechanical Products Active Remanufacturing

Wang Gao,Tao Li,Shi-tong Peng,Liang Wang,Hong-chao Zhang

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 115-122 doi: 10.15302/J-FEM-2016019

Abstract: explores the economic efficiency and corresponding operation mode of electro-mechanical products when recycling

Keywords： electro-mechanical products     active remanufacturing     optimal timing     reverse logistics     recycling mode    

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Recycling Materials from Waste Electrical and Electronic Equipment

Jinhui Li

Frontiers of Environmental Science & Engineering 2017, Volume 11, Issue 5, doi: 10.1007/s11783-017-1001-z

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Review and prospect of the air cushion furnace technology for aluminium alloy automotive sheet pre-treatment

Li Yong,Wang Zhaodong,Ma Mingtu,Wang Guodong,Fu Tianliang and Li Jiadong

Strategic Study of CAE 2014, Volume 16, Issue 1,   Pages 14-22

Abstract: characteristics of aluminium alloy automotive sheet pre-treatment and the working principle of the air cushion furnaceThe process location and irreplaceable role of air cushion furnace in the aluminium alloy automotiveThen development process of air cushion furnace line of aluminum alloy sheet was reviewed ，summarizedBased on the research status of the air cushion furnace，the key technology of it was analysed，and researchkey points on process， equipment and control models of air cushion furnace for aluminium alloy automotive

Keywords： aluminum alloy     auto body sheet     shate products     air cushion furnace     pretreatment technology    

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The Building of Papermaking Enterprise’s Recycling Economy Evaluation Index System Based on Value Flow

Zhi-fang Zhou,Jing Ou,Sha-sha Wang,Xiao-hong Chen

Frontiers of Engineering Management 2016, Volume 3, Issue 1,   Pages 9-17 doi: 10.15302/J-FEM-2016009

Abstract: At present, the research on circular economy has made a lot of substantive results both at home and abroad. But for the papermaking enterprise, which is the representative of the light industry, few studies have analyzed the evaluation index system of circular economy. Since the current material flow analyses have limitations that the researchers cannot calculate materials with different units. The authors take advantage of the intrinsic correlation between the basic principle of value flow analysis and circular economy, and then analyze the dynamic changes of material flow and value flow through enterprises internal production process. Considering the resource output, the authors set up the layered structure of the evaluation index system, and then preliminarily determine the index form. Next, the authors use the frequency statistics analysis method to adjust indicators, forming a preliminary index system. After that, the principal component analysis and independent analysis are applied for screening. Finally, the authors build a circular economy evaluation index system for papermaking enterprise to provide scientific guidance for the process of circular economy.

Keywords： circular economy     the papermaking enterprise     material flow analysis     value flow analysis     evaluation index system    

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Multi-Component Resource Recycling from Waste Light-Emitting Diode Under Hydrothermal Condition: Plastic

Yongliang Zhang,Lu Zhan,Zhenming Xu,

Engineering doi: 10.1016/j.eng.2023.04.008

Abstract: In previous studies, LED recycling focused on recovering precious and strategic metals while ignoringEnvironmental impact assessment revealed that the proposed recycling route for waste LED could significantlyFurthermore, this research provides a theoretical basis and a promising method for recycling other plastic-packaged

Keywords： Waste LED     Hydrothermal treatment     Recycling     Plastic PPA degradation     Packaging materials    

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Research on the key technologies of waste asphalt material recycling

Yang Linjiang

Strategic Study of CAE 2015, Volume 17, Issue 1,   Pages 56-61

Abstract: recycling technology， and analyzing the mechanism of asphalt?pavement aging and recycling， this essay proposed the technologies of recycling of waste asphalt mixturesIt also developed a set of effective technologies of hot recycling of asphalt pavement， to adapt to thepavement recycling， resources circulating and environment protecting in the current situation， which

Keywords： asphalt；pavement；waste material；recycling；hot?recycling?technology；reclaimed asphalt mixture    

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Title Author Date Type Operation

The Research of the Detecting Means for the New Model of the Gas Density in Recycled Waste Gas Furnace

Shen Yuansheng,Liu Yongjie,Wang Deyong,Li Benwen

Journal Article

Extension of pilot tests of cyanide elimination by ozone from blast furnace gas washing water through

Ismael Matino, Valentina Colla, Teresa A. Branca

Journal Article

Copper fractal growth during recycling from waste printed circuit boards by slurry electrolysis

Journal Article

EXPLORING THE RECYCLING OF MANURE FROM URBAN LIVESTOCK FARMS: A CASE STUDY IN ETHIOPIA

Journal Article

Assessing the potential of crop residue recycling in China and technology options based on a bottom-up

Lili QU,Tianzhu ZHANG,Wei LU

Journal Article

An investigation of reaction furnace temperatures and sulfur recovery

S. ASADI, M. PAKIZEH, M. POURAFSHARI CHENAR

Journal Article

Resources Recycling

Qiu Dingfan

Journal Article

Suggestions on Speeding up Recycling of Power Battery for New Energy Vehicles in China

Zhao Shijia,Xu Nan,Qiao Yingjun and Yang Bo

Journal Article

Data-driven soft sensors in blast furnace ironmaking: a survey

Yueyang LUO, Xinmin ZHANG, Manabu KANO, Long DENG, Chunjie YANG, Zhihuan SONG

Journal Article

Optimal Timing and Recycling Operation Mode for Electro-Mechanical Products Active Remanufacturing

Wang Gao,Tao Li,Shi-tong Peng,Liang Wang,Hong-chao Zhang

Journal Article

Recycling Materials from Waste Electrical and Electronic Equipment

Jinhui Li

Journal Article

Review and prospect of the air cushion furnace technology for aluminium alloy automotive sheet pre-treatment

Li Yong,Wang Zhaodong,Ma Mingtu,Wang Guodong,Fu Tianliang and Li Jiadong

Journal Article

The Building of Papermaking Enterprise’s Recycling Economy Evaluation Index System Based on Value Flow

Zhi-fang Zhou,Jing Ou,Sha-sha Wang,Xiao-hong Chen

Journal Article

Multi-Component Resource Recycling from Waste Light-Emitting Diode Under Hydrothermal Condition: Plastic

Yongliang Zhang,Lu Zhan,Zhenming Xu,

Journal Article

Research on the key technologies of waste asphalt material recycling

Yang Linjiang

Journal Article