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INDONESIA
Jurnal Zeolit Indonesia
Published by Institut Teknologi Bandung
ISSN : -     EISSN : -     DOI : -
Core Subject : Education,
Education
Arjuna Subject : -
Articles 303 Documents
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CATALIST PERFORMANCE OF SYNTETIC ZEOLITE ZSM-5 – Al2O3 IN CRACKING REACTION OF PALM OIL TO BECOME GASOLINE FRACTION OF HYDROCARBON Setiadi Setiadi; Benny A. W.
Jurnal Zeolit Indonesia Vol. 5 No. 2 (2006): Vol. 5 No. 2 (2006)
Publisher : Institut Teknologi Bandung

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The requirement of fuel increases without balancing with its production causing the oil resources from fuel will immediately finished. Therefore, palm oil as renewable energy resources is selected for fuel production especially gasoline. Catalitic cracking process by using ZSM-5/Alumina catalys is selected in this research. The reaction was conducted in a simple fixed bed reactor with the pressure of 1.5 atm during half hour and WHSV 1,8 h-1 dan 2,4 h-1. The reaction result product then analyzed by using GC-FID for identify the gasoline fraction obtained, and FT-IR for identify the bonding kind of the samples. The baits used were pure palm oil, oxydized oil,POME (Palm Oil Methyl Esther), and oil with methanol. The parameters of the research were temperature (350 – 500 °C), catalist composition (5 - 20 %), and kinds of baits. The results showed that the composition of catalist 5% at reaction temperature of 400 °C with the bait of POME resulting the highest gasoline yield of 63,1%.
PROSPECT OF ZEOLITE AS ABSORBENT MATERIALS FOR REMEDIATION OF ABANDONED MINE LAND Suwardi Suwardi; Budi Mulyanto
Jurnal Zeolit Indonesia Vol. 5 No. 2 (2006): Vol. 5 No. 2 (2006)
Publisher : Institut Teknologi Bandung

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Nowdays, mining and energy are still as important sectors for contributing state economics. However, mining activitis usually make environmental problems because most of mining use open pit mining technique that causing the change for the landscape comprising topography, cover vegetation, hydrology pattern, and distruction of soils. In the consequence, the ecosystem of mining area and its surrounding will disturb. The disturbances will more clear if the overburden containing unstable minerals in oxidize condition (such as pyrite and chalcopyrite) release acid mine drained that disturbing biota growth. Zeolite is aluminosilicate mineral group having unique structure, high cation exchange capacity, porous, and adsorp of ammonium ion and water. With those properties, zeolite can be used as (a) absorp of undesirable elements or compounds such as heavy metals, (b) carrier of nutrients such as ammonium ions, and (c) increasing buffer capasity of soils. This paper will dicuss the prospect of zeolite as material for remediation of abandoned mine land.
BLEACHING OF CRUDE PALM OIL BY ADSORPTION METHOD WITH USING NATURAL ZEOLITE FROM LAMPUNG Widi Astuti; Muhammad Amin; Aprimal Aprimal
Jurnal Zeolit Indonesia Vol. 5 No. 2 (2006): Vol. 5 No. 2 (2006)
Publisher : Institut Teknologi Bandung

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The research about bleaching of crude palm oil by adsorption method with using natural zeolite from Lampung has been done. The experiment result shows that natural zeolite from Lampung can be used as adsorbent for bleaching process of crude palm oil. Zeolite had been activated by chemical method with hydrochloric acid (HCl) solution before it was used as adsorbent. From the experiment result, we know that the best condition for bleaching process are weight percentage of zeolite that was used to get the highest of transmittance is 20% and the best concentration of HCl solution is 4%. The highest of transmittance for this condition is 48.5.
MAKING OF NATURAL ZEOLITES AS STONE CERAMICS AT TEMPERATURE OF LESS THAN 1000OC Dewi Fatimah
Jurnal Zeolit Indonesia Vol. 5 No. 2 (2006): Vol. 5 No. 2 (2006)
Publisher : Institut Teknologi Bandung

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Nowadays, ceramics world has been developing into what the interior, building exterior, industries and household. The quality and its ability made by certain specification which compatible with the structure, design and the function. For example, the building structure that usually has high humidity whether indoor or outdoor will need certain ceramics for the floor to keep on dry condition, unslippery, clean while fungus will not live. For that purpose stone ceramics that made by natural zeolite will has same characters as natural zeolite function such us absorb/release water reversibly, absorb smelt or volatile compound, molecular filter. The making of zeolite ceramic was done at certain burning temperature where natural structure of zeolite will not be destructed or collaps and forming amorphous compound. So the natural zeolite function will preserve. The development of composite is made from natural zeolite as the main ingredients which clay, kaolin, and feldspar are used as binders. In order to decrease burning temperature, natrium compound added into the composite and the experiment done at temperature 800-1000 oC with composite pressure between 50-100 kg/cm. the result of experiment indicate that on burning temperature 800oC whether with using SEM or XRD analysis, zeolite is in mordenite crystal form. Whereas at burning temperature 1000oC, the crystal structure of zeolite has been destructed and forming albit and calcian as new compound. The zeolite ceramics which formed at 800 oC, with pressure at 50 kg/cm has strong and compact characters with absorption ability up to 23%.
CHARACTERIZATION OF NATURAL ZEOLITE BY X-RAY DIFFRACTOMETER Supandi Suminta
Jurnal Zeolit Indonesia Vol. 5 No. 2 (2006): Vol. 5 No. 2 (2006)
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An identification of framework mineral structure of natural zeolit Bayah, Lampung and Malang was carried out by Reitveld methods. X ray diffraction intensity of Natural zeolit was measured by an X-Ray Diffractometer (XRD). The refinement of Clinoptilolite and Mordenite phases have been carried out and the results of refinement show that in Bayah and Lampung were Clinoptilolite phase ( space group C2/m No.12, Bravais lattice is Base-Centered and crystal system is monoclinic) and lattice parameter are a = 17,69(2) Ã…, b = 17,92(1) Ã… dan c = 7,422(9) Ã… respectively (Bayah zeolite) and a = 17,69(2) Ã…, b = 17,92(1) Ã… dan c = 7,422(9) Ã… respectively (Lampung zeolite) and pore size are S10R = 10,685 Ã… dan S8R = 8,193 Ã…. While Malang zeolites phase (space group Cmcm No.63, Bravais lattice is Base Centered and crystal system is orthorombic) was Mordenite phase and the lattice parameter are a = 18,115(8) Ã…, b = 20,520(9) Ã… dan c = 7,515(2) Ã…. The pore size are S8R = 11,43 Ã… dan S12R = 7,730 Ã…. Material of natural zeolit from Bayah and Lampung have Cation Exchange Capasity (CEC) bigger than Malang (acording to results of the framework structure analysis).
EFFECTS OF ZEOLITES ON LITTER FLOOR ON PERFORMENT OF BROILER Dede Kardaya; Niken Ulupi
Jurnal Zeolit Indonesia Vol. 5 No. 2 (2006): Vol. 5 No. 2 (2006)
Publisher : Institut Teknologi Bandung

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Effect of zeolites-spread litters on broiler performances under different floor spaces had been performed in five weeks. As many as 324 chicks of a day-old Hubbard strain were fed rations contained 3,000 "“ 3,100 Kcal/Kg ME and 21% crude protein during starter period and fed the ratio contained 20% crude protein with similar energy during finisher period. The chicks were randomly allocated to three different floor spaces (10, 12, and 14 heads/m2) and three different zeolites spread litters (0.0, 2.5, and 5.0 kg zeolites/m2) under completely randomized design with factor 3 x 3 and 3 replications. Parameters concerned of present research including feed intake, live weight gain, and mortality rate were analyzed with analysis of variance and least significant different. Results of the present research showed that there was no interaction effect between floor spaces and zeolites spread litters on all parameters concerned. Floor spaces affected both feed intake and feed conversion significantly (P
EFFECTS USING OF ZEOLITE INTO RATIONS TO RATION CONSUMPTION, GROWTH, AND DRESSING PERSENTAGE OF MALE LOCAL RABBITS Sulastri Sulastri
Jurnal Zeolit Indonesia Vol. 6 No. 1 (2007): Vol. 6 No. 1 (2007)
Publisher : Institut Teknologi Bandung

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This research was conducted 6 weeks to study the effect of zeolit in ration on feed consumption, average daily gain (growth rate), and dressing percentage of male local rabbits. Twenty four rabbit were used in this research designed by randomized completely block design. The treatment of research were level of zeolit on ration that was 0.0; 2.5; 5.0; 7.5 % of dry matter. This research indicated that zeolit didn
EFFECTS OF ZEOLITE AND LIQUID WASTE OF MSG (MONOSODIUM GLUTAMATE) ON PRODUCT OF NILAM PLANT (Pagostemon Cablin BENTH) IN ULTISOLS Any Kusumastuti; Jonathan Parapasan; Dewi Riniarti
Jurnal Zeolit Indonesia Vol. 6 No. 1 (2007): Vol. 6 No. 1 (2007)
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Ultisols is soil which predominate area in Lampung Province. This soil is rather acid until acid reaction, low in cation exchange capacity (CEC) and organic materials content so that cause inefficient of fertilization. Zeolite is a available and potential mining products and it is abundant available in Lampung Province. It can also to improve CEC of soil so that the absorption of soil to fertilizer can be increased. Besides, it has a high negative charges, so that it can also absorbed of nutrients and discharged it slowly. A liquid waste of MSG is an agroindustrial waste which enough potential. The waste contains the high enough organic materials and compound, especially nitrogen. Low of organic materials at Ultisols, caused needed an input to this management, for example combination usage of zeolite and liquid waste MSG. Nilam is plantation crop which have a good enough prospect, and have potency as state resource of stock-exchange and also can open the new employment. This research arranged in garden of Lampung State Polytechnic, Hajimena district, with Ultisols, it
DESALINATION OF THE BRACKISH WATER USING SURFACTANT MODIFIED ZEOLITE (SMZ) Widi Astuti; Adil Jamali; Muhammad Amin
Jurnal Zeolit Indonesia Vol. 6 No. 1 (2007): Vol. 6 No. 1 (2007)
Publisher : Institut Teknologi Bandung

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The intrusion of seawater in the beach area of Bandar Lampung and the Eastern beach of Lampung causes many problems for people because it turns the water into a brackish water. The brackish water is the water whose salinity is between 0.5 ppt until 17 ppt. The brackish water cannot be used for drinking, cooking or washing because the maximum degree of salinity for such purposes is 0.5 ppt. Desalination of brackish water is a process of reducing the salinity of a brackish water. In this research, natural zeolite from Lampung was modified with surfactant to become surfactant-modified zeolite (SMZ). It was used as ion exchanger in the desalination of a brackish water. The result showed the salinity of the brackish water could be reduced to 52% from the initial value. The best results were obtained at the contact time of 4 hours and the initial salinity 0.863 ppt.
APPLICATION OF NATURAL ZEOLITE AS A COMPONENT OF CATALIST BUFFER FOR HYDROGENATION REACTION OF CO2 AND CRACKING OF PALM OIL Setiadi Setiadi; Yanes Darmawan; R. Melisa Fitria
Jurnal Zeolit Indonesia Vol. 6 No. 1 (2007): Vol. 6 No. 1 (2007)
Publisher : Institut Teknologi Bandung

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This research was started with making a catalyst of CuO/ZnO/ZSM-5 with copresipitation method which using nitrate salts of Cu and Zn at buffer of zeolite ZSM-5 with loading (weight CuO and ZnO into their buffer) 10%, 20%, 30%, 40% and the pure of ZSM-5. The product of catalyst is then activated tested by hydrogenation reaction, where CO2 gas become the methanol by reacting of CO2 dan H2 into unggun reaction in operation condition: the pressure of 25 bar, with temperature at 250ºC, feeding ratio CO2/H2 = 1: 3. The making catalyst of CuO/ZnO/ natural zeolite each with impregnation method and physical mixing at the best loading in the result of activities test from all of catalyst CuO/ZnO/ZSM-5 by the results of preparation of copresipitation methods. The result of catalyst test indicate that the methanol (CH3OH) can be made of the main feeding of CO2 and H2 gas with catalyst of CuO/ZnO/ZSM-5 and catalyst of CuO/ZnO/ natural zeolite from the result of copresipitate preparation, impregnation and physical mixing. The test of CuO/ZnO/ZSM-5 catalyst resulting of preparation copresipitation indicate that catalyst with loading 30% yielding methanol (0.1359%). The method of copresipitation is the best among the other methods. We also obtained the buffer of natural zeolite from Malang can also give yield of methanol product although it

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