Chemistry is the science of change. But why do chemical reactions take place? Why do chemicals react with each other? The answer is in thermodynamics and kinetics, Computed Properties of C12H20N4O2, 10465-81-3, Name is Diazene-1,2-diylbis(piperidin-1-ylmethanone), SMILES is O=C(/N=N/C(N1CCCCC1)=O)N2CCCCC2, belongs to piperidines compound. In a document, author is Wang, Yanan, introduce the new discover.
Adjustment of the Al siting in MCM-22 zeolite and its effect on alkylation performance of ethylene with benzene
It may be an important route to improve the alkylation performance of MCM-22 zeolite by regulating the Al siting during the synthesis, as the liquid alkylation of benzene with ethylene mainly occur on the acid sites in the surface pockets and supercages of MCM-22. Here, the Al siting has been successfully adjusted by introducing additional anion in the hydrothermal synthesis of MCM-22 using piperidine as the structure directing agent. The effect of the additional anion in the synthesis precursor on the physiochemical property, especially the Al siting, and alkylation performance of MCM-22 zeolite was investigated. The morphology of products tends to be irregular lamellar structure when Cl-, PO43-, or SO42- are present in the synthesis gel. Although H-MCM-22-PO43- and H-MCM-22-SO42- show less acid site concentration than H-MCM-22, they exhibit obviously higher conversion of ethylene than H-MCM-22. This can be attributed to that more Al species are oriented to T-2 sites located in the pockets or supercages by virtue of the presence of PO43- or SO42- in the synthesis gel. The novel synthesis strategy may provide an alternative way to modify the performances of MCM-22 and even other zeolites.
A reaction mechanism is the microscopic path by which reactants are transformed into products. Each step is an elementary reaction. In my other articles, you can also check out more blogs about 10465-81-3. Computed Properties of C12H20N4O2.
Reference:
Piperidine – Wikipedia,
,Piperidine | C5H11N – PubChem