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In India total Groundnut production was 7.54 Million Tonnes during 2010–11, approximately 45% – 50% is from Andhra Pradesh, Karnataka and Tamil Nadu. There are many Groundnut oil producing industries in these states. Disposal of these biomass residues is a problem, since it is difficult to burn groundnut shell waste at atmospheric condition. This situation makes people to focus on sustainable energy...
Article briefly describes results of works on identification of fire factors, characteristic for burning substances which are most often used in everyday life. Most common factors of combustion substances classes “A”, “B”, “C” and their subclasses were identified. Analysis of the acquired data may be used to identify the burning substances. Fire detection methods which will be used in the combined...
Concrete is the second most widely used commodity globally, with estimated production at over 15 billion tons per year. It is estimated that 3.6 billion tons of cement was produced in 2012, accounting for approximately 5 $\%$ of the global anthropogenic $\hbox{CO}_{2} $ emissions. The Cement Sustainability Initiative (CSI) , along with the International Energy Agency (IEA), has developed a road...
Concrete is the second most widely used commodity globally, with estimated production at over 15 billion tons per year. It is estimated that 3.6 billion tons of cement were produced in 2012 accounting for approximately 5% of the global anthropogenic CO2 emissions. The Cement Sustainability Initiative (CSI), along with the International Energy Agency (EIA) have developed a road map for CO2 reductions...
Brown coals become increasingly important in energy consumption with the deposits of other energy resources decreasing every year. The direct utilization of moist brown coals without drying brings many problems such as low combustion efficiency, high greenhouse gas emissions, and it is not acceptable for coal gasification or liquefaction. Pre-drying brown coal is necessary and meaningful. Various...
In this paper, a process model of coal gasifier was developed using MATLAB, MS EXCEL. The proposed model in this paper was developed to predict syngas compositions correctly through calculating heat and mass balances and detail design for gasification in reactor. Furthermore, the proposed model was made to calculate carbon conversion and cold gas efficiency which represent the performance of gasifier...
Considering the problems of catalyst carbon deposition and reforming endothermic reaction in micro reforming chamber, coupled methane catalyst partial oxidation and steam methane reforming can make the micro reforming system auto-supply heat and inhibit the carbon deposited on the catalyst. For the propose of optimizing methane-wet air autothermal reaction conditions, the effect of oxygen to methane...
The organic pollutants generated by the coal thermal processing, such as polycyclic aromatic hydrocarbons (PAHs), are highly carcinogenic, mutagenic and teratogenic, and have thus attracted widespread public attention. In this study, The formation and fate of PAHs during the coal pyrolysis under rapid heating conditions have been discussed. Experiments were performed using the PY-GC-MS (pyrolyzer-gas...
Throated twin-oxidation zone gasifier of coal was exploited based on the characteristic analysis on the updraft gasifier and downdraft gasifier, and tar-free gasification of coal was experimentally investigated in the throated twin-oxidation zone gasifier. The effects of operational parameters, such as the ratio of grate air supplied gasifier by bottom to primary air (ng/np), the ratio of secondary...
An experimental study on gasification of coal using high temperature air as a gasifying agent was performed in a 200 mm inside diameter fixed-bed gasifier. Effects of gasification parameters such as, excess air factor (??), the ratio steam to carbon (ns/nc) and temperature of gasifying agent on gasification performance were studied. The results showed that the effects of ?? and the ns/nc on coal gasification...
A kinetics model and a experimental rig for high temperature air coal gasification(HTAG) research were set up. The effects of important operation parameters, such as air-coal ratio, steam-coal ratio and specific gasification rate, on gasification indexes were studied through the kinetics model and gasifier. The results show that: the model can accurately predict the gas composition. And when air-coal...
The TG-DTA-DTG thermal analysis technology was applied to study on combustion experiments of cornstalk and wheat straw.. Combustion characteristics of the two biomass was analyzed according to combustion characteristics parameters such as ignition temperature ,peak temperature at maximum weight loss rate, burnout temperature etc. By analyzed the combustion process of the two with the heating rate...
The reduction of NO was successfully demonstrated in this paper to develop a NO removal process by microwave- induced decomposition method for combustion flue gas. The absorbent of the microwave energy used in this experiment was activated carbon. Simulated flue gas containing NO gas was passed through the activated carbon bed and microwave energy was then applied for decomposition of the NO. It was...
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