From Unavoidable CO2 Source to CO2 Sink? A Cement Industry Based on CO2 Mineralization

2021 ◽  
Author(s):  
Hesam Ostovari ◽  
Leonard Müller ◽  
Jan Skocek ◽  
André Bardow
Keyword(s):  
Cement Industry ◽  
Co2 Sink ◽  
Co2 Mineralization

scholarly journals CO2 mineralization of demolished concrete wastes into a supplementary cementitious material – a new CCU approach for the cement industry

2021 ◽  
Vol 6 ◽  
pp. 53-60
Author(s):  
Maciej Zajac ◽  
Jan Skocek ◽  
Jørgen Skibsted ◽  
Mohsen Ben Haha
Keyword(s):  
Silica Gel ◽  
Cement Paste ◽  
Cementitious Material ◽  
Cement Industry ◽  
Recycled Concrete ◽  
Recycled Aggregates ◽  
Supplementary Cementitious Material ◽  
Co2 Mineralization ◽  
Concrete Recycling ◽  
Composite Cements

This contribution discusses the carbon capture and utilization (CCU) approach based on CO2 mineralization of cement paste from recycled concrete as new approach to capture CO2 and significantly contribute to the reduction in CO2 emissions associated with cement production. The current literature suggests that all CO2 released from the decomposition of limestone during clinker production can be sequestered by carbonation of the end-of-life cement paste. This carbonation can be achieved in a few hours at ambient temperature and pressure and with a relatively low CO2 concentration (< 10 %) in the gas. The carbonation of cement paste produces calcite and an amorphous alumina-silica gel, the latter being a pozzolanic material that can be utilized as a supplementary cementitious material. The pozzolanic reaction of the alumina-silica gel is very rapid as a result of its high specific surface and amorphous structure. Thus, composite cements containing carbonated cement paste are characterized by a rapid strength gain. The successful implementation of this CCU approach relies also on improved concrete recycling techniques and methods currently under development to separate out the cement paste fines and such. Full concrete recycling will further improve the circular utilization of cement and concrete by using recycled aggregates instead of natural deposits of aggregates.  Although the feasibility of the process has already been demonstrated at the industrial scale, there are still several open questions related to optimum carbonation conditions and the performance of carbonated material in novel composite cements.

scholarly journals Innovative Gas-Liquid Membrane Contactor Systems for Carbon Capture and Mineralization in Energy Intensive Industries

Membranes ◽  
2021 ◽  
Vol 11 (4) ◽  
pp. 271
Author(s):  
Akrivi Asimakopoulou ◽  
Dimitrios Koutsonikolas ◽  
Georgia Kastrinaki ◽  
George Skevis
Keyword(s):  
Mass Transfer ◽  
Co2 Capture ◽  
Liquid Membrane ◽  
High Performance Concrete ◽  
Hollow Fiber Membrane ◽  
Single Step ◽  
Cement Industry ◽  
Membrane Contactor ◽  
Novel Technologies ◽  
Co2 Mineralization

CO2 mineralization is an alternative to conventional geological storage and results in permanent carbon storage as a solid, with no need for long-term monitoring and no requirements for significant energy input. Novel technologies for carbon dioxide capture and mineralization involve the use of gas-liquid membrane contactors for post-combustion capture. The scope of the present study is to investigate the application of hollow fiber membrane contactor technology for combined CO2 capture from energy-intensive industry flue gases and CO2 mineralization, in a single-step multiphase process. The process is also a key enabler of the circular economy for the cement industry, a major contributor in global industrial CO2 emissions, as CaCO3 particles, obtained through the mineralization process, can be directed back into the cement production as fillers for partially substituting cement in high-performance concrete. High CO2 capture efficiency is achieved, as well as CaCO3 particles of controlled size and crystallinity are synthesized, in every set of operating parameters employed. The intensified gas-liquid membrane process is assessed by calculating an overall process mass transfer coefficient accounting for all relevant mass transfer resistances and the enhanced mass transfer due to reactive conditions on the shell side. The obtained nanocomposite particles have been extensively characterized by DLS, XRD, TGA, SEM, TEM, and FTIR studies, revealing structured aggregates (1–2 μm average aggregate size) consisting of cubic calcite when the contactor mode is employed.

The Portland Cement Industry of the World

1898 ◽  
Vol 46 (1192supp) ◽  
pp. 19108-19109
Author(s):  
Bernard L. Green
Keyword(s):  
Portland Cement ◽  
Cement Industry ◽  
The World

DEVELOPMENT OF ALGORITHM PROCEDURE OF STRATEGY DECISION-MAKING IN A CEMENT INDUSTRY ENTERPRISES

2019 ◽  
Vol 6 (4) ◽  
pp. 60-65
Author(s):  
Elena Vyacheslavovna Zaytseva
Keyword(s):  
Decision Making ◽  
Integrated Assessment ◽  
Information Technologies ◽  
Practical Implication ◽  
Cement Industry ◽  
Survey Method ◽  
Innovative Strategy ◽  
Technological Readiness ◽  
Geological Conditions ◽  
Methodological Principles

The problem statement (relevance). The article illustrates the outcome of analytical research in the area of substantiation of organizational and managerial structures of cement companies on the basis of conducting an integral estimation of complex conditions of operation (manufacturability of mining and geological conditions of cement production, level of production and technical conditions and social conditions) and outputs (production and technical level and financial level). Integrated assessment is provided by the appropriate methodology, the purpose of which supports an increase in the objectivity, reliability and reliability of decisions in the development of technological systems of cement enterprises.Purpose: development of an enlarged flowchart of the decision-making procedure algorithm for development strategies for cement enterprises. Methods used: the work used the method of “vector norm”, based on the methodological principles of the theory of complex decision making, utility theory, game theory, qualimetry, expert survey method and other generally accepted methods and principles.Novelty. The elements of novelty include an improved method of integrated assessment of the technological structure of cement enterprises in the conditions of external and internal environments of operation.Result. The article presents an iterative algorithm and decision-making procedure for structurally selected groups of cement enterprises with the choice of a specific form of their development. The results of the work made it possible to form the key areas of training and a list of information technologies that ensure technological readiness for the implementation of the directions of digitalization in relation to cement enterprises.Practical significance: the organizational and management apparatus with the appropriate mathematical reinforcement for the selection and justification of strategies for the development of cement enterprises. The practical implication of the outcome of the study due to the possibility to increase the effectiveness of organizational-technological and managerial solutions based on the developed methodology, technique and algorithm of formation of innovative strategy of development of the mining enterprises of the cement industry. The main provisions of the work are used in the holding “EUROCEMENT” in the development and implementation of plans for the development of industrial production in the short and long term.

THE ASSESSMENT OF ORC FOR WHR IN CEMENT INDUSTRY

2016 ◽  
Author(s):  
Felipe Raul Ponce Arrieta ◽  
Danilo Martinelli ◽  
GLACIELE SANTOS ◽  
Tainah Pinaffo
Keyword(s):  
Cement Industry

COGENERATION POTENTIAL ASSESSMENT IN CEMENT INDUSTRY

2016 ◽  
Author(s):  
Felipe Raul Ponce Arrieta ◽  
Yago Aguiar ◽  
Marcelo Naves Marques ◽  
Guilherme Irokawa
Keyword(s):  
Cement Industry

COMPARATIVE STUDY OF KALINA CYCLES FOR WASTE HEAT RECOVERY IN THE CEMENT INDUSTRY

2016 ◽  
Author(s):  
Felipe Raul Ponce Arrieta ◽  
Elviro Pereira Barbosa Junior ◽  
Cláudio Silva
Keyword(s):  
Comparative Study ◽  
Heat Recovery ◽  
Waste Heat Recovery ◽  
Waste Heat ◽  
Cement Industry

SURVEI POTENSI PASIR KUARSA DI DAERAH KETAPANG PROPINSI KALIMANTAN BARAT

2012 ◽  
Vol 11 (2) ◽  
Author(s):  
Teguh Prayogo ◽  
Bayu Budiman
Keyword(s):  
Glass Industry ◽  
Quartz Sand ◽  
Mineral Resources ◽  
Cement Industry ◽  
Laboratory Analysis ◽  
Rock Weathering ◽  
West Kalimantan ◽  
White Sand ◽  
Quartz Sands ◽  
Industrial Mineral

Ketapang area is one of lower part or southern sub-province of West Kalimanatan Province, which is located geographically between 108o40’ and 111o20’ in Longitude and between 0o20’ and 3o04’ in Latitude. This area has various of industrial mineral resources, for example quartz sand. Quartz sand or also calledwith white sand is the reasult of rock weathering that contents main mineral, such as quartz, and felsdpar. Then, the result of weathering is cleaned and transported by water or wind and deposited in the stream side, lake or sea. In this paper will bedescribed concerning to locations, characteristics, and usages of quratz sand in Ketapang area, West Kalimantan Province. Based on chemical or laboratory analysis and interpretation, the quartz sands can be used as glass industry, cement industry material, and moulding industry.

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