Study On Molecular Sieve Catalyst Used In Preparation Of Ethylene By Ethanol Dehydration

The ethylene is one of the most important organic chemical engineering raw materials. The yield of the ethylene is a marking that measures a national petroleum chemical engineering industry development level. The industry source of the ethylene is mainly form pyrolysis of the hydrocarbon that comes from the petroleum or natural gas raw material. However reduce gradually along with the petroleum resources, look for the petroleum chemical engineering reborn substitute raw material seems to be very important. This article studied on dehydration of the different concentration ethanol to make to the ethylene, and the cost of biomaterial as the start raw material been converted gradually to get the ethylene carried on the synopsis analysis.The Bio-ethylene technique mean that get sugar(glucose etc.) form biomaterial(for example cellulose, xylogen etc.) process catalyst hydrolysate, ferment sugar to born ethanol, then the ethanol dehydration to get the ethylene.The ethylene get by the craft’s method is called the Bio-ethylene. The petroleum resources are increasingly dried up, it is inevitable trend that price soar. The ethanol can be produced from the biomass that is infinitude to acquire. The ethanol of the low density is cheap and easy to get. Produce ethylene by the ethanol of the low density dehydration have economic worth and strategic meaning. Processing condition of preparing bio-ethylene under several molecular sieve catalyst form ethanol as material were studied. The yield percent of ethylene was between98-99%under appropriate temperature and gas velocity of the solution. In addition the influence of the concentration of the ethanol solution on the charge of the catalyst was tested.