In order to develop the conversion of heavy oil with a high yield of propylene in the catalytic cracking process, ZSM-5 zeolite was modified by tungsten and phosphorus, which was proved to be an effective method. Char...
supported by PetroChina Company Limited(12-09-01-01);the National Basic Research Program of China(973 Program,2012CB215001)
A series of phosphorus-modified PITQ-13 catalysts was prepared by wet impregnation of NH4H2PO4 solution into an HITQ-13 parent. The catalysts were characterized using XRD, N2 adsorption, MAS NMR and NH3-TPD. Their cat...
Supported by the NSFC of China(20973123);the National Basic Research Program of China(2012CB215002);the International Science and Technology Cooperative Program of China(2010DFB40440);Shanxi Basic Research Projects(2012011005-7,2012011008-3)
Ferrierite(FER) zeolites were synthesized by solid transformation at different alkalinities(OH-/Al2O3 molar ratios). The in situ delamination of FER zeolites were achieved and their catalytic performances in the catal...
support of the Chinese National Program for Fundamental Research and Development(973 program)(2012CB215006)
Catalytic cracking experiments of FCC cycle oil were carried out in a fixed fluidized bed reactor. Effects of reac- tion conditions, such as temperature, catalyst to oil ratio and weight hourly space velocity, were in...
supported by the National Program on Key Basic Research Project(973Program)(Grant No.2012CB215000);the Fundamental Research Funds for the Central Universities(Grant No.12CX04038A);the Graduate Student Innovation Foundation of China University of Petroleum(Grant No.CX-1211)
A transparent gel-like mesoporous silicoaluminophosphate material (SAP) with molar ratio of Si/Al = 20 was synthesized by hydrothermal method. The physicochemical features of SAP were characterized by XRD, XRF, BET,...
supported by the National Basic Research Program of China (2003CB615802)
A novel micro-mesoporous silicoaluminophosphate(MUS-5) with controlled morphology has been first synthesized in a two-step route.The physical properties of the silicoaluminophosphate were characterized using XRD,SEM,T...
funded by the National Basic Research Program of China (Project No. 2003CB615804) ;the joint funding of the National Natural Science Foundation of China and SINOPEC (NO.20736011)
A ZSM-5/MOR co-crystalline zeolite was synthesized without using the template. The physico-chemical properties of the zeolite were characterized by XRD, FT-IR, SEM and TPD and then compared with the co-crystalline zeo...
the Natural 973 Project(No.2003CB615804);the joint funding of National Natural Science Foundation of China and SINOPEC(No.20736011)
The change in acidity of the ZSM-5 zeolite was investigated after it was treated with water vapour, and its capability on ammonia adsorption was also studied after having adsorbed water vapour. The effect of water vap...
The geometries of resins with single-layer (SG), double-layer (DG) and triple-layer (TG) were calculated with the quantum chemistry method. The geometries and net charges of atoms were obtained. The calculated a...
Project supported by the National Basic Research Program of China(2004CB217806;2005CB221402);the National NaturalScience Foundation of China(20373043);Young Scientists Innovation Foundation of CNPC(04E7025)
The effects of rare earth(RE)on the structure,acidity,and catalytic performance of HZSM-5 zeolite were investigated.A series of RE/HZSM-5 catalysts,containing 7.54% RE(RE=La,Ce,Pr,Nd,Sm,Eu or Gd),were prepared by ...