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Register a new userUse Of A New Developed Micro-Pulse-Like Reactor For The Kinetic Catalytic Measurements Of NO, NOX Removal From Car Exhaust Gases On The New Catalyst (BZ Ag2O, Al2O3-MoO3- Ag2O)
تطوير و استخدام جهاز حفزي شبه نبضوي تدفقي نصف صناعي للقياسات الحركية الحفزية لإزالة NOx, NO من غازات عوادم السيارات باستخدام حفاز جديد (ZB-Ag2O, Al2O3-MoO3 – Ag2O)
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Added by
Damascus University ورقة بحثية
Publication date
2012
fields
Chemistry
and research's language is
العربية
Created by
Shamra Editor
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أُجريت الدراسة الكيميائية و الفلزية للبنتونيت و الزيوليت إذ تبين .Al2O3-MoO3 – Ag2O المحملين وجود مونتموريلونيت و الفلز الزيوليتي من نوع "الفلبسيت". فضلاً عن ذلك أُجريت الدراسة الحرارية التفاضلية لعينات البنتونيت و الزيوليت إذ لوحظت أفعال ماصة و ناشرة للحرارة. و قد درس امتزاز النتروجين في الدرجة - 196 ° لكل من العينات، و لوحظ تناقص بسيط في المساحة السطحية بحسب و لانغميور لمزيج البنتونيت و الزيوليت و حفاز الفضة عما كانت عليه في كل من البنتونيت BET و الزيوليت و مزيج البنتونيت و الزيوليت.
Mineralogical studies were made to identical the components of the catalyst, montmorillonite and phylippsite and others were observed. The DTA diagrams indicated characteristic indothermal and exothermal reaction. The adsorption – desorption of N2 measurements were carried out at -196°C. A slight decrease of surface area after having the catalyst been covered with Ag2O.
References used
Coq, B., Mauvezin, M., Delahay, G., Butet and J. B., Kieger, S., 2000. The simultaneous catalytic reduction of NO and N2O by NH3 using an Fe-zeolitebeta catalyst. Appl. Catal., B Vol. 27 pp. 193-198
Moreno-Tost, R., Santamaria-Gonzalez, J., Maireles-Torres, P., Rodriguez- Castellon, E. and Jimenez-Lopez, A., 2002. Cobalt supported on zirconium doped mesoporous silica: a selective catalyst for reduction of NO with ammonia at low temperatures. Appl. Catal. B, vol. 38 pp. 51-60
Vaccaro, A. R., Mul, G., Perez-Ramirez, J. and Moulijn, J. A., 2003. On the activation of Pt/Al2O3 catalysts in HC-SCR by sintering: determination of redox-active sites using Multitrack. Appl. Catal. B, Vol. 46 pp. 687-702
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The study showed that We can Processing of a new pleasant nourishing drink from
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The results of sensory tests and test taste according to international quality
standards ISO8588
7: 2005 at samples drink prepared from seeds roasted at different
temperatures and times showed that the sample prepared at 200C° for 2min is the best, also
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used in prepare the drink showed that it has a high nutritional value because of its high
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Most robotic industries depend on using (servo motors) and (stepper
motors) orcontinuous current motors (DC motors) for movement
transition, which increases the cost and complicates the robot’s
controlling process, as well as its driving circuits.
This essay deals with using pneumatic in the new design and
building of a robot’s arm, that can manage to do many tasks with a
much lower budget than the one needed for any of the above
mentioned methods, that’s because it can be used for tasks that need
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Some kinetic parameters have been determined in this work for thermal and catalytic
cracking of the mixed of polyethylene and polypropylene using batch method. The
cracking reaction was carried out at different temperature 470,490 and 510oC under
atmospheric pressure. The mass of products (liquid and gas fractions) were determined and
used to plot the curves of the thermal and catalytic decomposition. We used two types of
catalysts: Syrian natural Zeolite and the same after loading with sulfate ions using
impregnation method. The thermal cracking has a long time and has firs-pseud order
reaction. While in the case of catalytic process we note that the reaction finished in the
short time and the process is the Zero-pseud order reaction. The rate of the cracking
increased very much, the rate constant was k1=0.0032.min-1 in the thermal cracking at
4700C and ko=0.111.min-1 in the case of catalytic cracking in presence of Z catalyst and
ko= 0.206 min-1 in presence of 15-SO4
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The study was carried out to remove of heavy metals (V+5, Ni+2)
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mineral extracted from south of Syria. The results revealed that
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adsorbent particle size, the presence of competing cations, are able
to affect the adsorption capacity and efficiency of natural zeolite.
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