scholarly journals Review of Possibilities to Use Alternative Fuels as Energy Source for Cement Production

2019 ◽  
Vol 14 (8) ◽  
pp. 2497-2503
Author(s):  
Nurten Deva ◽  
Bersant Beka
Keyword(s):  
Energy Source ◽  
Alternative Fuels ◽  
Cement Production

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.

CI Engine Model Predictive Control With Availability Destruction Minimization

2018 ◽  
Author(s):  
Muataz Abotabik ◽  
Richard T. Meyer
Keyword(s):  
Energy Source ◽  
Model Predictive Control ◽  
Fuel Consumption ◽  
Predictive Control ◽  
Alternative Fuels ◽  
Combustion Engine ◽  
Tracking Error ◽  
Specific Fuel Consumption ◽  
Nox Emissions ◽  
Compression Ignition Engine

Major interests in the automotive industry include the use of alternative fuels and reduced fuel usage to address fuel supply security concerns and regulatory requirements. The majority of previous internal combustion engine (ICE) control strategies consider only the First Law of Thermodynamics (FLT). However, FLT is not able to distinguish losses in work potential due to irreversibilities, e.g., up to 25% of fuel exergy may be lost to irreversibilities. To account for these losses, the Second Law of Thermodynamics (SLT) is applicable. The SLT is used to identify the quality of an energy source via availability since not all the energy in a particular energy source is available to produce work; therefore optimal control that includes availability may be another path toward reduced fuel use. Herein, Model Predictive Control (MPC) is developed for both FLT and SLT approaches where fuel consumption is minimized in the former and availability destruction in the latter. Additionally, both include minimization of load tracking error. The controls are evaluated in the simulation of a single cylinder naturally aspirated compression ignition engine that is fueled with either 20% biodiesel and 80% diesel blend or diesel only. Control simulations at a constant engine speed and changing load profile show that the SLT approach results in higher SLT efficiency, reduced specific fuel consumption, and decreased NOx emissions. Further, compared to use of diesel only, use of the biodiesel blend resulted in less SLT efficiency, higher specific fuel consumption, and lower NOx emissions.

scholarly journals Rice husk as an alternative energy for cement production and its effect on the chemical properties of cement

2018 ◽  
Vol 195 ◽  
pp. 01009
Author(s):  
Agus Maryoto ◽  
Gathot Heri Sudibyo
Keyword(s):  
Energy Source ◽  
Rice Husk ◽  
Alternative Energy ◽  
Combustion Process ◽  
Chemical Properties ◽  
National Standard ◽  
Insoluble Residue ◽  
Cement Production ◽  
Chemical Content ◽  
The Impact

Production of rice husk in Central Java province is around 2,825,000 tonnes annually. It can be used as an alternative energy source to substitute coal in combustion during cement production. This study was conducted to determine the impact of rice husk as a substitute energy source in cement production. The observations of rice husk comprised calorimetric tests, physical and chemical tests, and percentage rice husk substitution for coal as firing energy. The chemical properties of the cement tested include the chemical content, MgO and SO3 contents, loss on ignition, insoluble residue, and total alkali. The results show that the chemical content of cement which is produced using rice husk as a substitute for coal in the combustion process still meets the Indonesian National Standard.

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 Metode Menentukan Klor dalam Sludge Oil: Perbandingan Metode Wet dan Metode Jena

2021 ◽  
Vol 10 (1) ◽  
pp. 1-7
Author(s):  
Herliati Rahman ◽  
Akhirudin Salasa
Keyword(s):  
Environmental Sustainability ◽  
Alternative Fuels ◽  
Negative Impact ◽  
Raw Materials ◽  
Cement Industry ◽  
Raw Material ◽  
Chlorine Content ◽  
Cement Production ◽  
Average Accuracy ◽  
The Difference

Currently, the use of alternative fuels and raw materials (AFR) in the cement industry is very attractive. This is driven by demands for environmental sustainability and the efficiency of fuel and raw material costs. One of the materials that can be used as AFR is sludge oil. However, it needs to be ensured that the chlorine content in the sludge oil does not exceed the threshold so that it does not have a negative impact during the cement production process. It is known that if the chlorine content is more than the threshold, it can cause blocking or clogging of the separator and the kiln. This study aims to determine the performance of the Jena Multi EA 4000 instrument in determining the chlorine content in sludge oil quickly and accurately. Analytic Jena Multi EA 4000 is an Atomic Absorption Spectrometers (AAS) instrument that can be used for analysis of samples in the form of solids or slurries containing chlorine. As validation of the resulting analysis, the wet method is used, which as usual, to determine chlorine levels. From the statistic analysis, namely the F-test and T-test, We found that F-count equal to 0.0080 and F-table equal to 4.2839. it shows that F-count < F-table, indicating the difference in the variance of the two methods H0: s12 = s22 is accepted because there is no difference to the variability of these two tests and the value of T-count = -3.9717 and T-table = 2.1788 so that T-count <T-table is accepted because there is no difference in the average accuracy of the two methods H0: M1 = M2.  

Use of waste derived fuels in cement industry: a review

2016 ◽  
Vol 27 (2) ◽  
pp. 178-193 ◽  
Author(s):  
Nickolaos Chatziaras ◽  
Constantinos S. Psomopoulos ◽  
Nickolas J. Themelis
Keyword(s):  
Alternative Fuels ◽  
Fossil Fuels ◽  
Fossil Fuel ◽  
Cement Industry ◽  
Wastewater Sludge ◽  
Cement Clinker ◽  
Firing Process ◽  
Cement Production ◽  
Content Type ◽  
Recycled Plastics

Purpose – Cement production has advanced greatly in the last few decades. The traditional fuels used in traditional kilns include coal, oil, petroleum coke, and natural gas. Energy costs and environmental concerns have encouraged cement companies worldwide to evaluate to what extent conventional fuels can be replaced by waste materials, such as waste oils, mixtures of non-recycled plastics and paper, used tires, biomass wastes, and even wastewater sludge. The paper aims to discuss these issues. Design/methodology/approach – The work is based on literature review. Findings – The clinker firing process is well suited for various alternative fuels (AF); the goal is to optimize process control and alternative fuel consumption while maintaining clinker product quality. The potential is enormous since the global cement industry produces about 3.5 billion tons that consume nearly 350 million tons of coal-equivalent fossil and AF. This study has shown that several cement plants have replaced part of the fossil fuel used by AF, such waste recovered fuels. Many years of industrial experience have shown that the use of wastes as AF by cement plants is both ecologically and economically justified. Originality/value – The substitution of fossil fuels by AF in the production of cement clinker is of great importance both for cement producers and for society because it conserves fossil fuel reserves and, in the case of biogenic wastes, reduces greenhouse gas emissions. In addition, the use of AF can help to reduce the costs of cement production.

scholarly journals Recent Progress in Green Cement Technology Utilizing Low-Carbon Emission Fuels and Raw Materials: A Review

2019 ◽  
Vol 11 (2) ◽  
pp. 537 ◽  
Author(s):  
Ali Naqi ◽  
Jeong Jang
Keyword(s):  
Carbon Dioxide ◽  
Carbon Dioxide Emissions ◽  
Alternative Fuels ◽  
Raw Materials ◽  
Low Cost ◽  
Cement Industry ◽  
Industrial Wastes ◽  
Low Carbon ◽  
Cement Production ◽  
Cement Manufacturing

The cement industry is facing numerous challenges in the 21st century due to depleting natural fuel resources, shortage of raw materials, exponentially increasing cement demand and climate linked environmental concerns. Every tonne of ordinary Portland cement (OPC) produced releases an equivalent amount of carbon dioxide to the atmosphere. In this regard, cement manufactured from locally available minerals and industrial wastes that can be blended with OPC as substitute, or full replacement with novel clinkers to reduce the energy requirements is strongly desirable. Reduction in energy consumption and carbon emissions during cement manufacturing can be achieved by introducing alternative cements. The potential of alternative cements as a replacement of conventional OPC can only be fully realized through detailed investigation of binder properties with modern technologies. Seven prominent alternative cement types are considered in this study and their current position compared to OPC has been discussed. The study provides a comprehensive analysis of options for future cements, and an up-to-date summary of the different alternative fuels and binders that can be used in cement production to mitigate carbon dioxide emissions. In addition, the practicalities and benefits of producing the low-cost materials to meet the increasing cement demand are discussed.

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