A new crystal phase SAO-25 zeolitew assyn thesized by statichydro-thermal methodusing triethano lamine as template . Mixing and transformati on of crystal phase are hardly liab le to occu r in the syn thesis p rocess, wich can thu s be performed w ith good repeatab ility . SAO-25 zeolite is characterized by phase analysis and IR spect ro scopy to invest igate it sadso rbability and acidity . Experimen ton n₂-C₆ cracking react ionover SAO-25 zeo lite molecu larsieve show ed h igher catalyt icactivity, while experimen ton heavy oil cracking reaction showed good selectivity to C₃ and C₄ olfins.

The perfo rmance of YXM-92 metal Passivatorin FCCU of Jinxi Petroleum Refning & Chemical Complex are described in thepaper . The results show that hydrogen content indry gas decreases from 20%～30% to 10%～18% , H₂/CH₄ from 1.5 to 0.5, light oil yield increases by 1151% , and net LPG yield increases by 0.42% , while dry gas and coke yield decrease . Therefore, good economic benef it can be obtained by use of YXM-92 metal passivator .

A ser ies of Co, Mo and Co-Mo sulfur2to lerant sh if t catalysts w ere studied using chro-matograph icmicro reactor and TPR technique . The experi ment show ed that cobolt and molybdenum tends to intereact st rongly with alum inacar rier and active component cobo lt has poor dispersi on in alumina; the first lyoccuring strong interaction betw een MgO and A l₂O₃ w eakens the st rong interact i on betw een two act ive components-cobo lt and mo lybdenum, results in high dspersi on of cobo lt and molybdenum on A l₂O₃·MgO carrier.The high lydispersed cobo lt and molydenum tend to function coordinately, thus promo tesh if tact ivity of the catalyst .

Beckmann rearrangement of cyclohexanone oxi me to cap ro lactam is a very

impo r tant indust r ial p rocess . The so lid acid catalysts used fo r vapo r2 phase rear rangement of cyclohexanone oxi me,including oxides, metal pho sphates and mo lecular sieves, are review ed1