scholarly journals Determination of Optimal Clinker Factor in Cement Production by Chemical Grinding Aids Addition

2015 ◽  
Vol 776 ◽  
pp. 223-228
Author(s):  
Titut Eryanto ◽  
Elita Amrina
Keyword(s):  
Production Process ◽  
Co2 Emission ◽  
Environmental Problem ◽  
Green Manufacturing ◽  
Cement Industry ◽  
Cement Production ◽  
Grinding Aids ◽  
The World ◽  
Cement Manufacturing

The cement industry has remarked as an intensive consumer of energy. The amount of energy consumed in the cement manufacturing has a correlation to the increasing of CO2 emission. It is reported that the cement Industry has contributed to 5–7% of the total CO2 emission in the world. Thus, there is a need to make an innovation in order to overcome the environmental problem. One of effort can be made is by using chemical grinding aids (CGA) as an additive material in the cement production process. This study aimed to determine the optimal clinker factor of the cement production by the addition of chemical grinding aids (CGA). The experiments are conducted in PT Semen Padang consisting of four variable of the clinker factor without CGA and with CGA addition 300 ppm. The clinker factor varies from 78.3% to 72.9%. The results show that the optimal clinker factor is at 74.5% with the CGA addition 300 ppm. It can improve the cement fineness to 3848cm2/gr and decrease the sieving R45μ to 10%. In addition, the strength of the cement produced is higher than the standard. The findings show the chemical grinding aids (CGA) addition in the cement production process can reduce the clinker factor as well as reducing the CO2 emissions. It can aid the cement industry to achieve the higher performance in green manufacturing and so as to increase the competitiveness.

Carbon Management in an Emissions-Intensive Industry in a Developing Economy: Cement Manufacturing in Indonesia

2018 ◽  
Vol 2 (1) ◽  
pp. 1-9 ◽  
Author(s):  
Togar W. S. Panjaitan ◽  
Paul Dargusch ◽  
Ammar A. Aziz ◽  
David Wadley
Keyword(s):  
Alternative Fuels ◽  
Cement Industry ◽  
Cement Production ◽  
Carbon Management ◽  
Production And Consumption ◽  
Carbon Dioxide Equivalents ◽  
Strategic Position ◽  
Reduce Emissions ◽  
Cement Manufacturing ◽  
Capital Intensive

Around 600 Mt carbon dioxide equivalents (CO2e) of anthropogenic greenhouse gases (GHG) emission originates from energy production and consumption in Indonesia annually. Of this output, 40 Mt CO2e comes from cement production. This makes the cement industry a key sector to target in Indonesia’s quest to reduce its emissions by 26% by 2020. Substantial opportunities exist for the industry to reduce emissions, mainly through clinker substitution, alternative fuels, and the modernization of kiln technologies. However, most of these abatement options are capital intensive and considered as noncore business. Due to this, the private sector is unlikely to voluntarily invest in emission reduction unless it saves money, improves revenue, enhances the strategic position of the firm, or unless governments provide incentives or force adoption through regulatory and policy controls. In this study, we review the profile of the Indonesian cement industry and assess the carbon management and climate policy actions available to reduce emissions. The case highlights opportunities for improved carbon management in emission-intensive industries in developing countries.

A systematic literature review on green manufacturing concepts in cement industries

2017 ◽  
Vol 34 (1) ◽  
pp. 68-90 ◽  
Author(s):  
Sanjeev Shrivastava ◽  
Shrivastava R.L.
Keyword(s):  
Manufacturing Systems ◽  
Industrial Ecology ◽  
Raw Materials ◽  
Green Manufacturing ◽  
Green Technology ◽  
Cement Industry ◽  
Content Type ◽  
Technical Performance ◽  
Cement Manufacturing ◽  
The Impact

Purpose The purpose of this paper is to survey the technical performance of the cement industry including those related to procedures; groundwork of raw materials, fuels and semi-finished products for processing; accessibility of machinery, plant and equipment for various operations; arrangement and process control management. Design/methodology/approach A broad range of survey and research was reviewed, and all revealed the methods to recognize the key influences for development of green technology. The study explores the present scenario of green manufacturing (GM) strategies of Indian cement companies and provides the industrial ecology, ways of reducing energy consumption, environmental impact data collection, design and control of manufacturing systems and integration of product and manufacturing system. It also reveals the problems in decision-making systems owing to the impact of the green product design. Here, in this paper, all information is obtained by the medium of internet, journals, articles, and magazines. Findings This paper describes a problem of global warming, gas, water and other wastages emissions at the time of cement manufacturing and put forward a path that enables decision makers to assess the perception of GM in their organization and in prioritizing GM efforts. Originality/value This perspective survey is to provide an integrative outlook of performance methods for GM practices in the Indian cement industries. It gives important information, which expectantly will help in cement industry to adopt GM practices. This paper fills the gap in the literature on identification, establishment, and validation of performance measures of GM for Indian cement industries.

The Influence of Raw Meal Granulometry on the Formation and Properties of Clinker

2019 ◽  
Vol 296 ◽  
pp. 9-14
Author(s):  
Theodor Staněk
Keyword(s):  
Raw Materials ◽  
Formation Rate ◽  
Cement Industry ◽  
Technological Parameters ◽  
Short Term ◽  
Cement Production ◽  
New Energy ◽  
Energetic Demand ◽  
Important Branch

Cement production belongs to the most important branch of industry. It is marked out by processing of great quantity of natural raw materials and of considerable energetic demand. Not only the intensification of the contemporary production processes is the permanent effort of the cement industry, but also the search for new energy less demanding methods. The paper is focused on one of the most important components of the intensification of cement production – on the preparation of raw meal. It mainly deals with the influence of granulometry and microhomogeneity of the input raw materials on the quality and economy of the process of production and on the final product. The study was carried out mainly by methods of optical microscopy and the determination of technological parameters of cements. It has been found that a change in granulometry of raw meal has a significant impact on the formation rate of the clinker phases. Subsequently, the grindability of the clinker and the strength of the cement are influenced, especially in the short-term hydration. Change of granulometry and homogeneity of raw meal can greatly optimize the quality and economy of the cement production process.

Co-Processing Hazardous Waste in the Chinese Cement Industry - Status 2014

2015 ◽  
Vol 768 ◽  
pp. 679-686 ◽  
Author(s):  
Juan Xu ◽  
Shao Feng Sun ◽  
Kårehelge Karstensen ◽  
Da Hai Yan ◽  
Zheng Peng
Keyword(s):  
Waste Management ◽  
Hazardous Waste ◽  
Alternative Fuels ◽  
Raw Materials ◽  
Cement Industry ◽  
Waste Generation ◽  
Cement Production ◽  
Management Capacity ◽  
The World

As China develops its economy, hazardous waste generation is expected to increase rapidly. Recovery and recycling, i.e. co-processing of Alternative Fuels and Raw materials (AFRs) and treatment of hazardous waste in energy-and resource-intensive industries such as the cement industry seems to be an supplementary option to conventional technologies which can increase the overall waste management capacity in China significantly. With the largest cement production in the world, the industry can save significant amounts of non-renewable coal and raw materials by substitution with wastes which needs treatment. However, co-processing requires appropriate regulations and policies to support its development and safe and sound implementation.

scholarly journals ENVIRONMENTAL AND OCCUPATIONAL NOISE MANAGEMENT PROCESS IN CEMENT INDUSTRY

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
MARIJA HADŽI-NIKOLOVA ◽  
DEJAN MIRAKOVSKI ◽  
NIKOLINKA DONEVA ◽  
NATAŠA BAKRESKA
Keyword(s):  
Manufacturing Process ◽  
Energy Use ◽  
Process Management ◽  
Noise Control ◽  
Raw Materials ◽  
Cement Industry ◽  
Control Measures ◽  
Cement Plant ◽  
Cement Production ◽  
Cement Manufacturing

The main environmental issues associated with cement production are the consumption of raw materials, energy use and emissions in the air. Noise emissions occur throughout the whole cement manufacturing process - from preparing and processing raw materials, from the clinker burning and cement production process, from material storage as well as from the dispatch and shipping of the final products. The heavy machinery and large fans used in the cement manufacturing process can give rise to noise emissions. Cement Plants are required to comply with standards for reduction in line with national legislation, and to conduct measurements and perform noise surveys. Having this in mind, A TITAN Group Usje Cement Plant in Skopje, following their strong commitment to high environmental performance and Corporate Social Responsibility and Sustainable Development Policy in 2013-2014 have engaged an AMBICON Lab (Faculty of Natural and Technical Sciences) from Stip, to conduct a Noise Control Study in order to identify noise sources within cement plant and marl quarry, determine their impacts on nearby residents and develop noise control/protection strategies. During the past three years, the Usje Cement plant has implemented most of the noise control measures proposed in this Study. Also, a follow-up study during 2016-2017 was conducted in order to assess the effectiveness of measures taken. This paper presents the outcomes of noise reduction measures taken. Keywords: noise, cement industry, process management, measures, environment

ANALISIS PRODUKSI EMISI CO2 BERDASARKAN PRAKIRAAN PEMAKAIAN ENERGI 2008-2030 DI INDONESIA TERHADAP DUNIA

2018 ◽  
Vol 5 (2) ◽  
Author(s):  
Indyah Nurdyastuti
Keyword(s):  
Energy Source ◽  
Co2 Emission ◽  
Environmental Problem ◽  
Energy Utilization ◽  
Low Carbon ◽  
Environment Friendly ◽  
Effi Ciency ◽  
The World ◽  
Key Words Co2 ◽  
Electric Generation

An increase on population and income of people will be followed by an increase on the energy utilization. As consequence, the CO2 emission from the energy utilization also increases that has impact on increasing environmental problem. The increase of CO2 emission can be reduced by the utilization environment friendly energy source and technology such as using low carbon energysource and increasing the effi ciency of energy technology. In 2008, most of CO2 emission from energy utilization in the world was contributed from OECDcountries. Most of the CO2 emission from the energy utilization was from electric generation sector. The CO2 emission from energy source is infl uenced by carbon content and combustion system that used in the utilization. Total CO2 emission in the world was almost 33.932 million ton that about 1,3% or 438 million ton was contributed from Indonesia. These emission is estimated to increase in thegrowth rate of 3,5% per year until 2030.Key words: CO2 emission, energy utilization.

REDUCTION OF CO2 EMISSIONS IN CEMENT PRODUCTION BY USING PREHEATER

2019 ◽  
Vol 6 (1) ◽  
Author(s):  
Haiyan Xie ◽  
Pranshoo Solanki ◽  
Alireza Mojadam ◽  
Wenfang Liu
Keyword(s):  
Construction Industry ◽  
Cement Industry ◽  
Cement Production ◽  
Dry Process ◽  
Alternative Technologies ◽  
The Us ◽  
Potential Benefits ◽  
Potential Factors ◽  
Cement Manufacturing ◽  
Reduction Of Co2

Cement has a pivotal role in the construction industry. However, cement is one of the key contributors to global CO2 emission levels. This is due to the energy-intensive nature of cement production processes. This comparative-descriptive study focuses on the potential factors to reduce the CO2 emission level in cement production and the decision-making process of adopting new environmental-friendly technology in production. Particularly, this study compares alternative technologies in cement manufacturing to reduce CO2 emission. It collects both the industry data and the data from Texas, which is the biggest contributor to CO2 emission in the US, to analyze how a shift in production technology could affect CO2 emission and eventually improve the outcomes of environment protection and energy efficiency. This paper projects a possible improvement of implementing the method of preheater-precalciner in cement production in lieu of wet and long-dry process to upgrade kilns and reduce problematic CO2 emission. This study suggests shifting from wet and dry kilns to preheater-precalciner systems to obtain the potential benefits of CO2 emission reduction in the cement industry.

scholarly journals Process based system models for detecting opportunities and threats – the case of World Cement Production

2016 ◽  
Vol 8 (3) ◽  
pp. 246-262 ◽  
Author(s):  
Raine Isaksson
Keyword(s):  
Global Warming ◽  
Carbon Emissions ◽  
Cement Industry ◽  
System Model ◽  
Sense Making ◽  
Cement Production ◽  
Content Type ◽  
System Models ◽  
Work Related ◽  
Cement Manufacturing

Purpose Visualising change needs could be complex. One way of sense-making is to use process-based system models. Global warming requires major changes in many fields and especially for cement manufacturing, which represents a growing portion of man-made carbon emissions. The industry has proposed measures for change, but it is difficult to assess how good these are and more sense-making is needed to clarify the situation. The purpose of this paper is to visualise opportunities and threats for global cement manufacturing in the context of global warming, using a process-based system model. Design/methodology/approach Available data for cement manufacturing and for carbon emissions are combined both historically and as predictions based on chosen key performance indicators. These indicators are related to a chosen process-based system model. Findings The results indicate that the global cement industry does not have a viable plan to reduce carbon emissions sufficiently to comply with the objectives of maintaining global warming below 2°C. The application of the process-based system model indicates that it has the ability to visualise important opportunities and threats at the level of global processes. Practical implications The challenges of the world cement industry with reducing carbon emissions are highlighted. This information could be useful as a driver for change. Originality/value The paper provides insights into process-based improvement work related to cement industry carbon emissions.

Research on Cement Manufacturing with Application of Simulation System in Thermotechnical Course Teaching

2014 ◽  
Vol 540 ◽  
pp. 547-551
Author(s):  
Han Li Wang
Keyword(s):  
Production Process ◽  
Teaching Method ◽  
Fault Simulation ◽  
Simulation System ◽  
Background Information ◽  
Cement Production ◽  
Fault Handling ◽  
Actual Operation ◽  
Cement Manufacturing ◽  
Provide Background Information

Simulation system of cement production process can provide background information on production process and hints to problem solving, urge students to analyze problems and handle fault by themselves, and discuss fault handling results with teachers. With its application in Teaching of Cement Thermal Technology Equipment, teachers can set fault simulation to train students’abilities of parsing problem and actual operation, which is an effective teaching method.

scholarly journals Health Risk and Environmental Assessment of Cement Production in Nigeria

Atmosphere ◽  
2021 ◽  
Vol 12 (9) ◽  
pp. 1111 ◽  
Author(s):  
Mmemek-Abasi Etim ◽  
Kunle Babaremu ◽  
Justin Lazarus ◽  
David Omole
Keyword(s):  
World Bank ◽  
Air Pollutants ◽  
Carbon Capture ◽  
Manufacturing Industry ◽  
Crop Yields ◽  
Combined Cycle ◽  
Cement Industry ◽  
Cement Production ◽  
Cement Manufacturing ◽  
And Storage

The cement manufacturing industry has played a fundamental role in global economic development, but its production is a major facilitator to anthropogenic CO2 release and solid waste generation. Nigeria has the largest cement industry in West Africa, with an aggregate capacity of 58.9 million metric tonnes (MMT) per year. The Ministry for Mines and Steel Development asserts that the nation possesses total limestone deposits of around 2.3 trillion MT with 568 MMT standing as established reserves and 11 MMT used. Cement industries are largely responsible for releasing air pollutants and effluents into water bodies with apparent water quality deterioration over the years. Air pollution from lime and cement-producing plants is seen as a severe instigator of occupational health hazards and work-related life threats, negatively affecting crop yields, buildings, and persons residing in the vicinity of these industries. World Bank observed in 2015 that 94% of the Nigerian populace is susceptible to air pollutants that surpass WHO guidelines. In 2017, World Bank further reported that 49,100 premature deaths emanated from atmospheric PM2.5, with children beneath age 5 having the greatest vulnerability owing to lower respiratory infections, thereby representing approximately 60% of overall PM2.5-induced deaths. Cement manufacturing involves the significant production of SO2, NOx, and CO connected to adverse health effects on humans. Sensitive populations such as infants, the aged, and persons having underlying respiratory ailments like asthmatics, emphysema, or bronchitis are seen to be most affected. Consequently, in addressing this challenge, growing interests in enacting carbon capture, usage, and storage in the cement industry is expected to alleviate the negative environmental impact of cement production. Still, no carbon capture technology is yet to achieve commercialization in the cement industry. Nonetheless, huge advancement has been made in recent years with the advent of vital research in sorption-enhanced water gas shift, underground gasification combined cycle, ammonium hydroxide solution, and the microbial-induced synthesis of calcite for CO2 capture and storage, all considered sustainable and feasible in cement production.

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