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- 저자 : Nurasmat Mohd Shukri (검색결과 2 건)
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Nurasmat Mohd Shukri,Wan Azelee Wan Abu Bakar,Jafariah Jaafar,Zaiton Abdul Majid 한국공업화학회 2015 Journal of Industrial and Engineering Chemistry Vol.28 No.-
Catalytic deacidification is a fascinating method to decrease the naphthenic acids (NAs) concentration ofhighly acidic petroleum crude because these acids caused serious corrosion in refinery equipment. Korean crude oil with a total acid number (TAN) of 8.32 mg KOH/g was used to test the performance ofcatalytic deacidification technology. A basic chemical with a dosing of 4% ammonia solution inpolyethylene glycol (NH3–PEG) was used as the acid removal agent with concentrations of 100, 500, and1000 mg/L. Cerium oxide, zinc oxide and tin oxide based catalysts supported onto alumina prepared withdifferent calcination temperatures and types of dopants were used to aid in the deacidification reaction. The potential catalyst was characterized by BET, EPR and CO2-TPD for its physicochemical properties. The results showed 93.3% reduction for Korean crude oil using Cu/Ce (10:90)/Al2O3 calcined at 1000 8C. This catalyst has the highest BET surface area of 87.12 m2/g with higher dispersion of Cu2+ species on theCeO surface detected using EPR spectra and higher total basic site measured using CO2-TPD. Theseproperties contributed to the excellent catalytic performance which remove the NAs in the Korean crudeoil and concurrently reduced the TAN value below than one.
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Catalytic pyrolysis of waste oil into hydrocarbon fuel utilizing cerium oxide catalyst
Mohamad Arsyad Abdul Khalid,Nurhayati Abdullah,Mohamad Nasir Mohamad Ibrahim,Rahmad Mohd Taib,Salmiah Jamal Mat Rosid,Nurasmat Mohd Shukri,NoorFatimah Yahaya,Wan Nazwanie Binti Wan Abdullah 한국화학공학회 2022 Korean Journal of Chemical Engineering Vol.39 No.6
The depletion of fossil fuels has prompted research into alternative fuels made from regeneration of wastematerials. Pyrolysis is a method of converting waste oil into valuable products, such as char, gas, and fuel. This studypresents the catalytic pyrolysis of waste oil for producing fuel utilizing cerium oxide, CeO2/Al2O3 and zinc oxide, ZnO/Al2O3 catalyst. The catalyst and oil were characterized using several characterization techniques to find the physicochemicalproperties of the catalyst and oil. The optimum condition for catalytic pyrolysis was a reaction temperature at500 oC, with the heating rate at 10 oC/min, utilizing CeO2/Al2O3 catalyst calcined at 700 oC. The catalytic pyrolysis successfullyconverted the waste oil into fuel and the oil product obtained was 93.01 wt% with a high calorific value(54.2MJ/kg). The pyrolysis oil is comprised of aliphatic hydrocarbon (C5-C15 hydrocarbon) that is within the hydrocarbonrange for gasoline and diesel. The oil product was also detected to have a low content of oxygen (3.07 wt%) andsulfur (0.60wt%), indicating its potential to serve as a cleaner, fuel reducing the sulfur dioxide, SOX formation. Theresults reveal that pyrolysis reactors have the ability to convert waste oil into hydrocarbon fuel.
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