Efekat Staklene Baste – Download as Powerpoint Presentation .ppt), PDF File . pdf), Text File .txt) or view presentation slides online. Title Slide of Efekat staklene baste godić, šerbedžija, crnčević. Efekat staklene baste andrej krnjajic, mile milosevic, stanko tatic. 1. NO E NJ AL VA OB EGL GR ZA. Recommended. Test Prep: PSAT.

Author: Dokora Kigaramar
Country: Samoa
Language: English (Spanish)
Genre: Travel
Published (Last): 11 December 2006
Pages: 319
PDF File Size: 13.14 Mb
ePub File Size: 12.49 Mb
ISBN: 181-8-76991-751-8
Downloads: 78490
Price: Free* [*Free Regsitration Required]
Uploader: Akinogor

Kates, Biodiesel production from waste cooking oil: Additionally, we predict that these physico-chemical parameters of the catalysts are influenced with the calcination temperature. The lowest specific fuel consumption was observed for LSCDF, whereas an increase was experienced with an increase of the biodiesel portion in the blends.

A democratic republic replaced the monarchy in and economic revival followed. Upadhyay, Advancements in development and characterization of biodiesel: These properties are directly linked to the fraction of biodiesel blended in each particular fuel sample.

Moreover, in our case, the calcination temperatures below [degrees]C were not enough high to cause formation of active crystal phase and activation of surface basic sites, while temperatures over [degrees]C may induce undesirable sintering of the catalytic material, hence, changes in surface morphology and particle sizes.

Rise of global middle temperature of the earth surface; Sea level rise; Changes in precipitation; Staklend of hydrological regime and regime of water resources; Influence on ecosystems, agriculture and forestry. The goal of the program is to provide students a hands-on experience in developing experiments for space flight. The presence of these three crystal phases in the inactivated CaO starting material is related to its chemical composition, present impurities and potential surface interactions with C[O.


Efekt staklenika

Prasad, Triglycerides-based diesel fuels, Renew. Sun, Preparation of biodiesel from Idesiapolycarpa var. These authors reported that the basicity of catalysts was essential for the catalytic activity.

Recovery of the payload is in progress. CaO catalytic samples calcined at different temperatures were analyzed by FTIR before and after being exposed to phenol vapors. It is generally known that these gases contribute to global warming.

The Bookmark will be sent with the above message. Other advantages of biodiesel use are its lubricant properties, acceptable cetane number, flash point and low temperature properties, making it an alternative, environmental friendly, biodegradable, renewable fuel [2,3], and a direction to sustainable development and economy.

EFEKAT STAKLENE BASTE by Ilija Ristic on Prezi

Nitrogen isotherms and pore size distribution curves for the CaO catalyst sample are shown in Fig. More oxygen was available for burning with the increase of biofuel share due to the oxygenated nature of biodiesel; hence, decreased amounts of CO were registered in the exhaust gases. Znacajno smanjenje emisija C[O. Phenol can interact with basic sites from the catalyst surface via a dissociative adsorption giving probably [C.

Friday, 08 March Greater intensities of vibration bands of OH-groups around [cm. Prednosti koriscenja ovog katalizatora su: McCormick, Combustion of fat and vegetable oil derived fuels in diesel engines, Prog.


A comparison of the textural, thermal, structural, acid-base and morphological properties of the catalysts differently thermally activated along with their observed efficiency suggests that physicochemical properties of the catalysts have a profound influence on the final catalytic performance in the transesterification reaction.

Efekat Staklene Baste

B may also provide the mentioned benefits Tables 3 and 4 and a complete replacement of diesel fuel with biodiesel might be possible if biodiesel becomes available in adequate volumes and at acceptable costs on market [38,39].

Sunflower oil from a domestic producer was employed efdkat the transesterification reactions. Methanol of HPLC grade was used in the test reactions. Phenol, a rather weak acid, was selected to be the test compound for the estimation of the active basic catalytic sites on the catalyst surface [33]. Ljupkovic 1Radoslav D.

Additionally, several experiments transmitted data during the flight down to Wallops via a telemetry system on board the rocket. Zarubica, Faculty of Science and Mathematics, University of. The basicity of stzklene seemed to be determinant for the tsaklene activity among all the samples [20].

Manage 49 They also claim a negligible catalytic activity in the presence of the hydroxide [20,28].