scholarly journals Application of a blast furnace slag carrier catalyst in flue gas denitration and sulfur resistance

RSC Advances ◽  
2021 ◽  
Vol 11 (25) ◽  
pp. 15036-15043
Author(s):  
Zhang Lei ◽  
Lu Xi ◽  
Qi Lingbo ◽  
Shu Hao ◽  
Jia Yang ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Flue Gas ◽  
Blast Furnace Slag ◽  
High Efficiency ◽  
Low Cost ◽  
Sulfur Resistance ◽  
Furnace Slag

It is an urgent need to develop a new catalyst with high efficiency and low cost.

scholarly journals Effect of Flue Gas Desulfurization Gypsum on the Properties of Calcium Sulfoaluminate Cement Blended with Ground Granulated Blast Furnace Slag

Materials ◽  
2021 ◽  
Vol 14 (2) ◽  
pp. 382 ◽  
Author(s):  
Danying Gao ◽  
Zhenqing Zhang ◽  
Yang Meng ◽  
Jiyu Tang ◽  
Lin Yang
Keyword(s):  
Blast Furnace ◽  
Mechanical Strength ◽  
Flue Gas ◽  
Blast Furnace Slag ◽  
Setting Time ◽  
Flue Gas Desulfurization ◽  
Calcium Sulfoaluminate Cement ◽  
Calcium Sulfoaluminate ◽  
Granulated Blast Furnace Slag ◽  
Furnace Slag

This work aims to investigate the effect of additional flue gas desulfurization gypsum (FGDG) on the properties of calcium sulfoaluminate cement (CSAC) blended with ground granulated blast furnace slag (GGBFS). The hydration rate, setting time, mechanical strength, pore structure and hydration products of the CSAC-GGBFS mixture containing FGDG were investigated systematically. The results show that the addition of FGDG promotes the hydration of the CSAC-GGBFS mixture and improves its mechanical strength; however, the FGDG content should not exceed 6%.

Preparation and Characterization of Desulfurization Sorbent from Hydrated Lime and Blast Furnace Slag

2008 ◽  
Vol 368-372 ◽  
pp. 1548-1551
Author(s):  
Guo Zhuo Gong ◽  
Shu Feng Ye ◽  
Feng Li ◽  
Yan Bin Cui ◽  
Ya Jun Tian ◽  
...  
Keyword(s):  
Blast Furnace ◽  
Flue Gas ◽  
Calcium Silicate ◽  
Blast Furnace Slag ◽  
Hydrated Lime ◽  
Experiment Design ◽  
Factorial Experiment ◽  
Calcium Silicate Hydrates ◽  
Furnace Slag

A series of sorbents for SO2 in flue gas were prepared from hydrated lime and blast furnace slag using a factorial experiment design. It is found that the reaction between hydrated lime and blast furnace slag is fast. The reactivities of the as-prepared sorbents are higher than those of hydrated lime alone due to the formation of calcium silicate hydrates, and hence the utilization of hydrated lime as well as the Ca in the blast furnace slag is improved. Furthermore, the effects of preparation variables on the reactivity of the sorbents are also discussed.

scholarly journals Metal reduction from landfill leachate by using blast furnace slag and pine bark - discussion about the parameters significant for metal removal

2019 ◽  
pp. 277-286
Author(s):  
Emma Nehrenheim
Keyword(s):  
Blast Furnace ◽  
Landfill Leachate ◽  
Blast Furnace Slag ◽  
Metal Removal ◽  
Low Cost ◽  
Paper Industry ◽  
Filter Material ◽  
Pine Bark ◽  
Cost Treatment ◽  
Furnace Slag

In Sweden there are many old landfills of which the content is more or less unknown, Theleachates from these are of varying quality, mirroring the waste deposited in the landfills,Metals commonly occurring in leachates are i,e, zink (Zn), lead (Pb), cupper (Cu) and nickel(Ni), Ni is of particular interest due to the un-predictable mobility of the metal, For small,weak leachates a passive low-cost treatment system can be suitable, Reactive filter technologyis one alternative and by using by-products from national and global industries theenvironmental benefit could be further increased, Pine bark (from pulp and paper industry)and blast furnace slag (from steel manufacturing) are examples of such materials, Designingfilters for removal of metals from leachate includes taking a series of parameters into accountAt the landfill site in Eskilstuna, Sweden, a facility was designed as a pilot study, Fourcolumns were filled with filter material, The materials were sand, amorphous and crystallineblast furnace slag and pine bark, The aim was to investigate parameters significant for metaluptake from landfill leachate, A screening of the metals, physio-chemical parameters andsome organic pollutants was conducted for a period of five months, A part from this, a batchexperiment was conducted, Contact time, initial concentration, other leachate components andpH are examples of parameters that have a significant influence on the metal removingcapacity of a filter,

Preparation of a New Unburned Brick from Ti-Bearing Blast Furnace Slag and PVA Modified by Epikote

2013 ◽  
Vol 785-786 ◽  
pp. 328-331 ◽  
Author(s):  
Xiang Wen Kong ◽  
Li Li Ren ◽  
Xia Ai ◽  
Jing Zhang
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Low Cost ◽  
Mixing Time ◽  
Cementitious Materials ◽  
Test Method ◽  
Process Conditions ◽  
Curing Time ◽  
Orthogonal Test Method ◽  
Furnace Slag

A new unburned brick was prepared from the Ti-bearing blast furnace slag as an aggregate and PVA modified by epikote as cementitious materials. The effects of modified PVA and auxiliaries on compressive strength of unburned brick were studied by the orthogonal test method. The results show that samples have better properties and low cost when the samples have a composition of slag dosage 72 %, modified PVA dosage 6%, auxiliary 1 dosage 6%, auxiliary 2 dosage 10%, water 6% and the process conditions of preparing the brick sample were mixing time 1 h, forming time 10 min, forming pressure 40 MPa, and curing time 7 d. The study reveals that the samples properties can meet the standard requirements of excellent grade products (MU20) in GB11945-1999.

Cementitious Property Comparison of Steel Slags with Different Basicity

2013 ◽  
Vol 575-576 ◽  
pp. 337-340
Author(s):  
Zai Bo Li ◽  
Xu Guang Zhao ◽  
San Yin Zhao ◽  
Tu Sheng He
Keyword(s):  
Blast Furnace ◽  
Comparative Research ◽  
Blast Furnace Slag ◽  
High Efficiency ◽  
Steel Slag ◽  
Granulated Blast Furnace Slag ◽  
Cement And Concrete ◽  
Cementitious Systems ◽  
Furnace Slag

For the purpose of high-efficiency recovery and utilization of steel slag in cement and concrete, a comparative research on the cementitious property of several kinds of steel slag in six different cementitious systems have been carried out. The results show that the changes of cementitious systems and the basicity of steel slag have no significant effect on the mortar fluidity. The cooperating use of steel slag and ground granulated blast furnace slag is helpful to activate the cementitious property of steel slag. The basicity of steel slag can generally reflect the long-term cementitious properties of steel slag.

Characterization of Blast Furnace Slag−Ca(OH)2Sorbents for Flue Gas Desulfurization

2008 ◽  
Vol 47 (20) ◽  
pp. 7897-7902 ◽  
Author(s):  
Guozhuo Gong ◽  
Shufeng Ye ◽  
Yajun Tian ◽  
Yanbin Cui ◽  
Yunfa Chen
Keyword(s):  
Blast Furnace ◽  
Flue Gas ◽  
Blast Furnace Slag ◽  
Flue Gas Desulfurization ◽  
Furnace Slag

Preparation of low cost glass–ceramics from molten blast furnace slag

2012 ◽  
Vol 38 (3) ◽  
pp. 2495-2500 ◽  
Author(s):  
Yan Zhao ◽  
Dengfu Chen ◽  
Yanyan Bi ◽  
Mujun Long
Keyword(s):  
Blast Furnace ◽  
Blast Furnace Slag ◽  
Low Cost ◽  
Glass Ceramics ◽  
Furnace Slag
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