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Merica Pletikosić orcid id ; CEMEX Hrvatska d.d., Kaštel Sućurac, Hrvatska

Puni tekst: hrvatski pdf 186 Kb

str. 89-93

preuzimanja: 286



Carbon dioxide (CO2) is a main greenhouse gas that initiates global climate changes and it is the only greenhouse gas that is emitted by the cement industry in a significant level. The decrease, defined by the measures of the Kyoto protocol for the cement industry, is achieved by the substitution of the fossil fuels (which are the largest CO2 emitter) with the substitution fuels made from waste, largely consisting of biomass. The reason for the introduction of alternative fuels in the CEMEX Croatia Ltd. company is compliance with the legal obligations of the Kyoto protocol, related to the decrease of the carbon dioxide emission. The aim of this work was to determine the influence of the usage of olive pomace as a substitution fuel in the process of cement production, through the emissions of carbon dioxide, sulphur dioxide, nitrogen oxides, dioxins, furan and heavy metals, as well as the comparison of the calorific value of the observed fuels, in the process of cement production in CEMEX Croatia Ltd. company. A statistically significant difference of the defined clusters was determined by using the sample of entities consisting of 120 daily average measures of carbon dioxide, sulphur dioxide, nitrogen oxides (60 days of measuring during which only fossil fuel (petroleum coke) was used – 30 days in year 2013 and 30 days in year 2014) and occasional measuring of dioxins, furan and heavy metals, as well as 60 days in which a defined amount of pomace was used as a substitution fuel (30 days in year 2013 and 30 days in year 2014). The univariant variance analysis (ANOVA) indicated the statistically significant difference between the clusters of measuring that used pomace and those that had not use it in the CO2 emissions, while the values of the emissions of the remaining observed indicator also indicated the decreased values of the emissions, but no statistical significance.

Ključne riječi

cement industry, alternative fuels, Kyoto protocol, greenhouse gases

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Podaci na drugim jezicima: hrvatski

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