Resource Type

Journal Article 58

Year

2023 3

2022 6

2021 10

2020 4

2019 4

2018 2

2017 5

2016 4

2015 1

2014 1

2013 2

2012 1

2011 2

2010 3

2009 1

2008 2

2007 2

2002 1

2001 1

open ︾

Keywords

fly ash 16

Fly ash 4

ash deposition 3

concrete 3

biomass 2

coal fly ash 2

compressive strength 2

durability 2

gasification 2

Vibrio qinghaiensis (Q67) 1

AFM 1

AlOCl 1

Alccofine 1

Alkali fusion 1

Assessment 1

Bentonite 1

Bioaccessibility 1

Bottom ash 1

CFB boiler 1

open ︾

Search scope:

排序： Display mode:

Formation of CaCO hollow microspheres in carbonated distiller waste from Solvay soda ash plants

Frontiers of Chemical Science and Engineering   Pages 1659-1671 doi: 10.1007/s11705-022-2173-z

Abstract: For decades, distiller waste and CO2 were not the first choice for production of high valued products. Here, CaCO3 hollow microspheres, a high-value product was synthesized from such a reaction system. The synthetic methods, the formation mechanism and operational cost were discussed. When 2.5 L·min–1·L–1 CO2 was flowed into distiller waste (pH = 11.4), spheres with 4–13 μm diameters and about 2 μm shell thickness were obtained. It is found that there is a transformation of CaCO3 particles from solid-cubic nuclei to hollow spheres. Firstly, the Ca(OH)2 in the distiller waste stimulated the nucleation of calcite with a non-template effect and further maintained the calcite form and prevented the formation of vaterite. Therefore, in absence of auxiliaries, the formation of hollow structures mainly depended on the growth and aging of CaCO3. Studies on the crystal morphology and its changes during the growth process point to the inside–out Ostwald effect in the formation of hollow spheres. Change in chemical properties of the bulk solution caused changes in interfacial tension and interfacial energy, which promoted the morphological transformation of CaCO3 particles from cubic calcite to spherical clusters. Finally, the flow process for absorption of CO2 by distiller waste was designed and found profitable.

Keywords： distiller waste     CO2     hollow microsphere     CaCO3     Ca(OH)2     inside−out Ostwald effect    

HTML PDF Collect

Development of New Type of Carbonization Tower in Soda Ash Production

Zhou Guangyao

Strategic Study of CAE 2001, Volume 3, Issue 10,   Pages 28-32

Abstract:

A new process for soda ash production based on converted gas, developed by China is very competitiveTherefor the process has only been used in the small soda ash plants for years.The developed technology will surely promote further progress of soda ahs manufacturing based on convertedgas, and hence enhance the competitive capability of China´s soda ash industry on the international

Keywords： soda ash     converted gas     carbonization tower    

HTML PDF Collect

Forward osmosis coupled with lime-soda ash softening for volume minimization of reverse osmosis

Jiandong Lu, Shijie You, Xiuheng Wang

Frontiers of Environmental Science & Engineering 2021, Volume 15, Issue 1, doi: 10.1007/s11783-020-1301-6

Abstract: with chemical softening for CCI ROC minimization • Effective removal of scale precursor ions by lime-sodaash softening • Enhanced water recovery from 54% to 86% by mitigation of FO membrane scaling • High-purityIn the case of the real raw CCI ROC, softening treatment by lime-soda ash was shown to effectively remove

Keywords： Coal chemical industry     Forward osmosis     Chemical softening     Reverse osmosis concentrate    

HTML PDF Collect

Effect of fineness of ash on pozzolanic properties and acid resistance of sugarcane bagasse ash replaced

Shan E ALI; Rizwan AZAM; Muhammad Rizwan RIAZ; Mohamed ZAWAM

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 10,   Pages 1287-1300 doi: 10.1007/s11709-022-0872-7

Abstract: This paper addresses the potential use of Sugar Cane Bagasse Ash (SCBA) as a pozzolanic material for

Keywords： durability     cement replacement     sugarcane bagasse ash     fineness of ash     pozzolanic properties     mortar    

HTML PDF Collect

Fresh and hardened properties of high-performance fiber-reinforced concrete containing fly ash and ricehusk ash: Influence of fiber type and content

Nguyen-Trong HO; Viet Quoc DANG; Minh-Hieu NGUYEN; Chao-Lung HWANG; Trong-Phuoc HUYNH

Frontiers of Structural and Civil Engineering 2022, Volume 16, Issue 12,   Pages 1621-1632 doi: 10.1007/s11709-022-0884-3

Abstract: fiber-reinforced concrete (HPFRC) designed using a novel densified mixture design algorithm with fly ashand rice husk ash.

Keywords： high-performance fiber-reinforced concrete     fly ash     rice husk ash     durability     mechanical strength    

HTML PDF Collect

Effects of sulfur on variations in the chemical speciation of heavy metals from fly ash glass

Frontiers of Environmental Science & Engineering 2023, Volume 17, Issue 10, doi: 10.1007/s11783-023-1728-7

Abstract:

● A higher sulfur content reduced the curing rate of Cr in glass.

Keywords： Dechlorinated fly ash     SO3     Heavy metal     Chemical speciation     Glass solidification    

HTML PDF Collect

Direct synthesis of carbon nanotubes on fly ash particles to produce carbon nanotubes/fly ash composites

Fangxian LI, Cheng ZHOU, Pengfei YANG, Beihan WANG, Jie HU, Jiangxiong WEI, Qijun YU

Frontiers of Structural and Civil Engineering 2019, Volume 13, Issue 6,   Pages 1405-1414 doi: 10.1007/s11709-019-0564-0

Abstract: Fly ash was used as catalytic support for carbon nanotubes (CNTs) growth by chemical vapor depositionIn this paper, CNTs were synthesized on Ni catalyst/fly ash substrate using CVD method.and hydrogen flow rate would decrease in defect density and increase in yield of as-grown CNTs on fly ash

Keywords： carbon nanotubes     fly ash     chemical vapor deposition     parameters     purification    

HTML PDF Collect

Effect of circulating ash from CFB boilers on NO and N

Xiangsong HOU, Shi YANG, Junfu LU, Hai ZHANG, Guangxi YUE

Frontiers in Energy 2009, Volume 3, Issue 2,   Pages 241-246 doi: 10.1007/s11708-009-0006-0

Abstract: The effect of circulating ash from a CFB boiler on NO and N O emissions were investigated in a laboratory-scaleThe results show that the residue char in circulating ash and the CO generated from the char play animportant role in NO reduction and N O formation; however, active components of circulating ash suchThe lower residue carbon content of circulating ash in this experiment is lower; therefore, the reacting

Keywords： CFB boiler     circulating ash     NO reduction     N2O thermal decomposition     biomass    

HTML PDF Collect

Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel

Vallarasu Manoharan SOUNTHARARAJAN, Dr. Anandan SIVAKUMAR

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 429-445 doi: 10.1007/s11709-013-0226-6

Abstract: The present study focuses on the improvement of pozzolanic reaction of fly ash particles with the cementLow and high volume fly ash concrete mixtures were studied systematically with the addition of acceleratingreinforcing effects of glued steel fibers addition on the compressive and flexural performance of fly ashA maximum increase (41.7%) in compressive strength of fly ash concrete around 52.90 MPa was noticed for25% fly ash substitution and 1.5% steel fibers addition.

Keywords： fly ash     pozzolanic index     steam curing     superplasticizer     accelerator     steel fibres     elastic modulus    

HTML PDF Collect

Effects of seeding nucleation agent on geopolymerization process of fly-ash geopolymer

Lapyote PRASITTISOPIN, Issara SEREEWATTHANAWUT

Frontiers of Structural and Civil Engineering 2018, Volume 12, Issue 1,   Pages 16-25 doi: 10.1007/s11709-016-0373-7

Abstract: viability to substitute traditional concrete made of portland cement (PC) because replacing PC with fly ashAlthough fly ash geopolymer stimulates sustainability, it is slow geopolymerization reaction poses aThe purpose of this study is to evaluate seeding nucleation agents (NA) of fly ash geopolymer that canused to increase geopolymerization reaction rate and improve performance characteristics of the fly ash

Keywords： fly ash     geopolymer     nucleation agent     portland cement replacement    

HTML PDF Collect

Service life prediction of fly ash concrete using an artificial neural network

Frontiers of Structural and Civil Engineering 2021, Volume 15, Issue 3,   Pages 793-805 doi: 10.1007/s11709-021-0717-9

Abstract: For this purpose, the present work estimates the lifetime of fly ash concrete by developing a carbonationSix parameters affecting carbonation were used as input neurons: binder content, fly ash substitutionnetwork has strong potential as a feasible tool to accurately predict the carbonation depth of fly ashmathematical formula is proposed that can be used to successfully estimate the service life of fly ash

Keywords： concrete     fly ash     carbonation     neural networks     experimental validation     service life    

HTML PDF Collect

Fault simulation of boiler heating surface ash deposition in a power plant system

Weiwei ZHANG, Huisheng ZHANG, Ming SU

Frontiers in Energy 2011, Volume 5, Issue 4,   Pages 435-443 doi: 10.1007/s11708-011-0162-x

Abstract: The performances of the power plant under the conditions of the furnace slagging and ash deposition of

Keywords： boiler     slagging     ash deposition     fault simulation    

HTML PDF Collect

Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Frontiers of Structural and Civil Engineering 2013, Volume 7, Issue 4,   Pages 411-418 doi: 10.1007/s11709-013-0228-4

Abstract: One method of reducing concrete’s contribution to greenhouse gas emissions is the use of fly ash to replaceThis study presents the results of an experimental investigation that evaluates effect of fly ash replacementThis study includes four mixes with 0%, 30%, 50%, and 70% fly ash as a cement replacement.Results of these statistical tests show that the mix with higher level of fly ash replacement level has

Keywords： concrete     fracture energy     fly ash    

HTML PDF Collect

Experimental studies of ash film fractions based on measurement of cenospheres geometry in pulverized

Siqi LIU, Yanqing NIU, Liping WEN, Yang LIANG, Bokang YAN, Denghui WANG, Shi’en HUI

Frontiers in Energy 2021, Volume 15, Issue 1,   Pages 91-98 doi: 10.1007/s11708-020-0806-9

Abstract: In pulverized coal particle combustion, part of the ash forms the ash film and exerts an inhibitory influenceon combustion by impeding the diffusion of oxygen to the encapsulated char core, while part of the ashDespite the considerable ash effects on combustion, the fraction of ash film still remains unclear.The fraction of ash film is the ratio of the measuring mass of ash film and the total ash in coal particleThe high fraction of ash film provides a reasonable explanation for the extinction event at the late

Keywords： ash film fraction     cenospheres     coal combustion     fly ash    

HTML PDF Collect

The investigation of fly ash based asphalt binders using atomic force microscope

Rajan SAHA, Kyle MALLOY, Emil BAUTISTA, Konstantin SOBOLEV

Frontiers of Structural and Civil Engineering 2017, Volume 11, Issue 4,   Pages 380-387 doi: 10.1007/s11709-017-0437-3

Abstract: In this study AFM was used to investigate the interaction of asphalt binder with fly ash.Fly ash is a coal combustion byproduct of electric power utilities having pozzolanic properties and commonlyIn this study, an investigation was made by using different types of fly ash with two types of asphaltThe interaction of these phases affected by introducing fly-ash was investigated and correlation with

Keywords： AFM     fly ash     bee     rheology     asphalt    

HTML PDF Collect

Title Author Date Type Operation

Formation of CaCO hollow microspheres in carbonated distiller waste from Solvay soda ash plants

Journal Article

Development of New Type of Carbonization Tower in Soda Ash Production

Zhou Guangyao

Journal Article

Forward osmosis coupled with lime-soda ash softening for volume minimization of reverse osmosis

Jiandong Lu, Shijie You, Xiuheng Wang

Journal Article

Effect of fineness of ash on pozzolanic properties and acid resistance of sugarcane bagasse ash replaced

Shan E ALI; Rizwan AZAM; Muhammad Rizwan RIAZ; Mohamed ZAWAM

Journal Article

Fresh and hardened properties of high-performance fiber-reinforced concrete containing fly ash and ricehusk ash: Influence of fiber type and content

Nguyen-Trong HO; Viet Quoc DANG; Minh-Hieu NGUYEN; Chao-Lung HWANG; Trong-Phuoc HUYNH

Journal Article

Effects of sulfur on variations in the chemical speciation of heavy metals from fly ash glass

Journal Article

Direct synthesis of carbon nanotubes on fly ash particles to produce carbon nanotubes/fly ash composites

Fangxian LI, Cheng ZHOU, Pengfei YANG, Beihan WANG, Jie HU, Jiangxiong WEI, Qijun YU

Journal Article

Effect of circulating ash from CFB boilers on NO and N

Xiangsong HOU, Shi YANG, Junfu LU, Hai ZHANG, Guangxi YUE

Journal Article

Accelerated engineering properties of high and low volume fly ash concretes reinforced with glued steel

Vallarasu Manoharan SOUNTHARARAJAN, Dr. Anandan SIVAKUMAR

Journal Article

Effects of seeding nucleation agent on geopolymerization process of fly-ash geopolymer

Lapyote PRASITTISOPIN, Issara SEREEWATTHANAWUT

Journal Article

Service life prediction of fly ash concrete using an artificial neural network

Journal Article

Fault simulation of boiler heating surface ash deposition in a power plant system

Weiwei ZHANG, Huisheng ZHANG, Ming SU

Journal Article

Effect of fly ash replacement level on the fracture behavior of concrete

Mahdi AREZOUMANDI, Jeffery S. VOLZ

Journal Article

Experimental studies of ash film fractions based on measurement of cenospheres geometry in pulverized

Siqi LIU, Yanqing NIU, Liping WEN, Yang LIANG, Bokang YAN, Denghui WANG, Shi’en HUI

Journal Article

The investigation of fly ash based asphalt binders using atomic force microscope

Rajan SAHA, Kyle MALLOY, Emil BAUTISTA, Konstantin SOBOLEV

Journal Article