The Research Of Prolonging The Service Life Of MEK Catalyst

Methyl-ethylketone(MEK short for) is a kind of important and low boiling point melting agent,vaporize one degree just right,dissolve with each other with most hydrocarbon melting agents,to the high and solid content and all glue the degree good affect,have the excellent deliquescence and dry characteristic,ability with numerous thing of coboiling with total melting agent formation, to various cellulose derivatives, synthesize the rubber, grease, deluxe fatty acids to have the very strong deliquescence ability. It implies the carbonyl and with mutually abutting cheery oxygen of the carbonyl , be easy to take place various chemical reaction. At refine oil, dyestuff, coating, glue to match the , medicine, lubricant to take off the wax, the printing printing ink, the electronics component to clean etc.Because of good function of MEK , cause the value of the profession more and more, develop and usher in MEK to produce the technique in succession. Haerbin Petrochemical Company of the Petrochina Company Limited strand starts work to constuct 30,000 tons/ years MEK to equip in August of 2003, in 2004 on June 30 in hand over, threw to produce August.N-butenyl directly hydration to prepare SBA of this equip adoption matches to make the SBA and the SBA spirit to take off the hydrogen system MEK two footworks production craft mutually. The water matches the catalyst as strong acidity resin, the design one way conversion rate is 6.5%;Take off the hydrogen catalyst to fasten the catalyst(FDH type) for the Cu-Zn, design the one way conversion rate as 75%.Because the service life of MEK catalyst onlies have a year, replacing the expenses of the catalyst to attain 5,000,000 dollars annually. For the sake of the economy expenses, decline low cost, this text passes to regulate the reactor exit control temperature and adjust the crude oil inverse proportion to compare, stabilize the operation and control the raw material source etc. several research quest, make the service life of MEK catalyst prolong till two years, come to a best level of local MEK catalyst service life.In the aspects of prolonging to take off the hydrogen reaction catalyst life span, this text passes the analysis to take off the hydrogen reactor R-201\B to cut over to respond to anticipate in the process of constitute unsteady, violent reason of vice- reaction, has been blown to sweep, the heat steam activates etc. operation, make the R-201YB enter the stability to circulate the appearance. Because the steady production of MEK is under the influence of very variously, this text passes to adjust the temperature that MEK equip in check fix in front and back, the heat production line etc. various control of production index sign, the first step got the extension MEK takes off the craft condition of the hydrogen catalyst service life;Pass the stable degree of adjust the raw material source, also investigate sex ground got the extension MEK takes off the hydrogen catalyst service life of raw material source condition. This text still passes to the conversion rate,MEK selectivity of the SBA , and can consume to wait the production data analysis, further get the production data of the extension MEK catalyst usage.In the aspects of prolonging the water to match to respond the catalyst usage, this text quest ground washes the catalyst through washing,replacing parts of equipmentses etc., further excellent turned to produce the craft condition, make the water match the service life of the catalyst to come to a the domestic to lead the level.