000			03104nam a2200253 a 4500
001			vtls000031329
003			KUKTEM
005			20251114204347.0
008			080829t2008 my a f m 000 0 eng|d
020			_aTHE0004356(Local)
039		9	_a201905161047 _brohana _c201107132111 _dVLOAD _c200908141554 _dVLOAD _c200908141526 _dVLOAD _y200808291201 _zida84
040			_aUMP
090			_aTP248.E72 L56 2008 rs Thesis
100	3		_aLim, Aaron Brian
245	1	0	_aPerformance of zeolites catalyst for conversion of ethylene to higher hydrocarbons at elevated temperatures / _cAaron Brian Lim
246	3		_aPerformance of zeolites catalyst for conversion of ethylene to higher hydrocarbons at elevated temperatures _h[electronic resource]
260			_aKuantan, Pahang : _bUMP, _c2008
300			_a76 p. : _bill. ; _c30 cm. + _e1 computer disc
502			_aproject paper (Bachelor of Chemical Engineering (Gas Technology) ) --- Universiti Malaysia Pahang - 2008
520	3		_aEthylene is an unsaturated hydrocarbon which undergoes numerous reactions and is a higWy unstable molecule, hence ethylene is not feasible to be use as fuels for car engines. Ethylene is volatile thus extra precautions must be taken when storing, handling and transporting ethylene. So it is wise if ethylene is converted to higher hydrocarbons liquid for safe handling, and might as well produce liquid hydrocarbons within the ranged of gasoline composition. Banned on plastics due to environmental effect will lessen the consumption of ethylene, thus results in abundance of ethylene and reduce the market price of ethylene due to low demand. This will promote a process to convert ethylene into liquid hydrocarbons through oligomerization process. The objective of this research is to study the performance of ethylene oligomerization over zeolite catalyst to produce higher hydrocarbons liquid. Due to time constraint, zeolite was not synthesized instead zeolite-A was purchased and selected as the catalyst for oligomerization of ethylene at elevated temperatures. Performance of ethylene conversions to liquid hydrocarbons (LHC) is via a single step reaction in a fixed-bed-micro reactor over 1 gram of zeolite-A catalyst. Ethylene (99.9%) purity react at atmospheric pressure and temperature start at 400°C with ethylene flow rate of 50 ml/min. Characterization using XRD and FTIR analysis reveal that zeolite-A is a small pore catalyst and will only allowed linear hydrocarbon to enter the pore and will not produce molecules with 6 or more carbons as molecules of this size will not fit into the small pores of zeolite. It was also predicted that zeolite-A has lower acid site than ZSM-5 and thus will reduce the ability of oligomerization process, and also being observed that coking occurred when temperature increase to 800°C, which conclude that product selectivity factor has higher possibility to limit oligomerization of ethylene to higher hydrocarbons liquid. -Author
650		0	_aEthylene
650		0	_aZeolites
999			_aVIRTUA40 _c687 _d693
999			_aVTLSSORT0080*0200*0400*0900*1000*2450*2460*2600*3000*5020*5200*6500*6501*9992