| Abstract [eng] |
This research work analyses the oil industry secondary (Zeolite) waste usage possibilities in the cement industry. The main aim of the research is to analyze oil industry’s products polluted waste – zeolite – usage as a secondary material in the cement industry. Industrial ecology implementation allows to use one company’s waste as another company’s raw material. In the same time, the companies that had the waste, reduces the required investment for the waste utilization. Oil industry’s waste (Zeolite) secondary usage in the cement manufacturing process can reduce the price of the common raw material (limestone, clay, etc.) and reduce the negative impact to the environment. The object of the research is a catalyst waste that is received by cracking the oil products – zeolite and his secondary usage research in the cement industry. To improve Zeolite’s physical characteristics and to reduce the oil waste quantity in the zeolite ultrasound counterfeiting is used. There was no research found, that could be compared with zeolite cleaning with ultrasound. In addition, there is no data that could indicate how the concrete’s strength is affected while using zeolite in the manufacturing process. Different zeolite purity and different quantity in the concrete’s mixture can affect the cements physical characteristics – the quality of the product can lower or a new product with different exceptional characteristics can be formed. During the research an algorithm was conducted that is used to evaluate and implement oil industry waste (zeolite) as a secondary material, in the cement industry. While developing the algorithm, different preparation methods and zeolite quantities with cement samples were used. In addition, the zeolite’s particle minuteness was analyzed by using roentgen spectral analysis and optical microscope. Moreover, hydration temperature measurements by time aspect and concrete’s compressive strength measurements were conducted. An SWOT analysis WAS were conducted for proper zeolite usage evaluation. During the analysis, clean manufacturing concept was considered. Oil industry waste usage in companies manufacturing cement decreases: energy‘s cost that is used for the common raw material processing, raw material cost and emission to the environment. Positive effect to the environment, the common raw material usage is reduced by 5%. These raw materials are nonrenewable natural resources. If zeolite is processed with ultrasound, the emission to the environment air can be reduced to 5%. During the research an algorithm was conducted that can be used by cement manufacturing companies. The implementation of this algorithm allows the companies to integrate oil industry waste (zeolite) in the manufacturing process. |
