Results 51 to 60 of about 20,263 (259)

Experimental study on combined solidification of sludge using industrial wastes reinforced alkali slag-cement

Yantu gongcheng xuebao
In order to improve the deterioration of the strength of alkali slag-cement cured sludge caused by alkali slag doping, the industrial waste slag is introduced to improve its mechanical properties.
FU Huaihe 1, ZHANG Mingzhi 2, MAO Shuaidong 2, BAO Youzhi 1, HUANG Yinghao 2
doaj   +1 more source

Experimental Investigation on the Effect of Dry and Wet Activation Processes on the Morphological Properties of Activated Carbon Derived From Sugarcane Bagasse

Carbon Innovation, EarlyView.
Synthesis and characterization of sugarcane bagasse‐derived activated carbon via KOH‐assisted dry and wet activation. ABSTRACT This study explores the impact of activation processes on the morphological properties of activated carbon. Carbon is initially produced through vacuum pyrolysis at three temperatures (500°C, 600°C, and 700°C), with a heating ...
Sachin Channappa Hallad, N. L. Panwar, Kavankumar Venkatareddy, J. K. Maherchandani, Trilok Gupta, S. S. Meena   +5 more
wiley   +1 more source

Investigation of the performance and life cycle assessment of alkali-activated sintered sludge-slag-based permeable concrete

Frontiers in Materials
As urbanization continues to accelerate, the application of permeable concrete is becoming an increasingly prevalent practice. Nevertheless, the carbon dioxide emission issue associated with traditional permeable concrete cannot be overlooked.
Xiangbo Ning, Jiayang Zhang, Can Zhuang, Qunyong Su, Shunjie Zhong   +4 more
doaj   +1 more source

Internal Carbon Cycles in the Steel Industry: Pathways for CO2 Management and Carbon Capture Utilization

Chemie Ingenieur Technik, EarlyView.
The steel industry accounts for about 7%‐9% of global CO2 emissions. While H2‐based direct reduction is a long‐term route, near‐term solutions are needed for existing plants. Internal carbon cycles reuse steelworks off‐gases and by‐products, enabling circular carbon use and supporting CCU integration.
Florian Haakmann, Nina Kolbe, Julian Suer, Cássia Castro Müller, Nils Jäger   +4 more
wiley   +1 more source

Recycling of Aluminosilicate-Based Solid Wastes through Alkali-Activation: Preparation, Characterization, and Challenges

Buildings
Recycling aluminosilicate-based solid wastes is imperative to realize the sustainable development of constructions. By using alkali activation technology, aluminosilicate-based solid wastes, such as furnace slag, fly ash, red mud, and most of the bio ...
Lichao Feng, Shengjie Yi, Shuyuan Zhao, Qiucheng Zhong, Feirong Ren, Chen Liu, Yu Zhang, Wenshou Wang, Ning Xie, Zhenming Li, Na Cui   +10 more
doaj   +1 more source

Techno‐Economic Analysis of Methanol Production From Steel Mill Gases

Chemie Ingenieur Technik, EarlyView.
A techno‐economic analysis for the synthesis of methanol from steel mill gases is carried out. Four different process concepts are defined and analyzed. The analysis yields levelized cost of methanol estimates between €1130 and €1419 t−1. Sensitivity analyses identify hydrogen production as the largest contributor to cost.
Lars Paschke
wiley   +1 more source

Influence of Slag Composition and Temperature on Slag Foaming.

ISIJ International, 1992
The slag foaming behavior caused by the reaction between FeO containing slag and hot metal was investigated for the CaO-SiO2-Al2O3-P2O5-TiO2-MnO-MgO-CaF2 system. The peak of slag foaming height was observed when (CaO)/(SiO2) was around 1.2 and the peak value of (CaO)/(SiO2) became slightly large with the increase in temperature and the CaF2 mixing ...
Kitamura, Shin-ya, Okohira, Kazuo
openaire   +2 more sources

Green and sustainable synthesis of magnetite from copper slag via citrate complexation for methylene blue dye removal from water

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract This study proposes a novel, green, and sustainable method for synthesizing magnetic iron oxides from metallurgical copper slag (CS), leveraging its iron content as a valuable resource. Iron was extracted via acid leaching using edible citric acid (ECA), forming a citrate–iron complex (CSL), which was subsequently thermally decomposed at 300°C
Melisa Portilla‐Sangabriel, Karen Valencia García, Tania‐Ariadna García‐Mejía, Agileo Hernández‐Gordillo, Rosa‐María Ramírez‐Zamora   +4 more
wiley   +1 more source

Investigating the mechanical properties of activated alkali high permeability concrete according to the ratio of alkaline activators [PDF]

مدل‌سازی پیشرفته در مهندسی عمران
This research investigates the mechanical properties of alkali-activated porous concrete compared to cement-based porous concrete. In this regard, the slag of blast furnaces has been used as the base material for cement, and sodium hydroxide and sodium ...
Amir Zohrabi, Rasoul Alipour, Alireza Jahangiri   +2 more
doaj   +1 more source

Box–Behnken optimization and ANN‐ANFIS integrated modelling for transesterification using thermally activated basic oxygen furnace slag catalyst

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Global energy demand and environmental concerns have intensified the search for renewable and sustainable energy sources. This study thus, focuses on optimizing the transesterification process of waste cooking oil (WCO) using thermally activated basic oxygen furnace slag catalyst calcined at 850°C (BOF 850). The optimization and modelling were
Johra S. Ali, Hillary L. Rutto
wiley   +1 more source