Patent ID: 11951462
Assignee: USTAV FYZIKALNI CHEMIE J. HEYROVSKEHO AV CR, V.V.I.
Field: Chemical engineering (Chemistry)
Classification: CPC B  C  Y | IPC B  C

Claim 1:
2. A method for production of methanol, characterized in that it comprises the following steps:
(i) a catalyst for production of methanol from methane is oxidized with oxygen at a temperature of at most 300° C.,
wherein the catalyst comprises a zeolite having at least 10 percent of Al atoms in the skeleton located in pairs, each pair represented by two Al atoms located in one ring of the zeolite, based on the total number of aluminium atoms in the zeolite, the number of Al pairs determined by a method based on a quantitative analysis of the extent of formation of Co(II) complexes characterized by a combination of chemical analysis, FTIR and UV Vis spectroscopy,
and containing a transition metal cation M, wherein the distance of two adjacent divalent transition metal cations coordinated at two adjacent cationic positions forming one binuclear centre is in the range of from 6 to 9 Å, determined using DFT model based on X-ray diffraction of the zeolite, wherein M is selected from the group consisting of Mn, Fe, Co, and Ni,
wherein the ratio of the transition metal M to Al is in the range of from 0.01 to 0.5,
wherein the Si to Al ratio is in the range of from 2 to 9, and
wherein the zeolite is selected from the group consisting of ferrierite, beta zeolite and SSZ-13, according to the Nickel-Strunz classification; and
(ii) the oxidized catalyst is contacted with methane with which it interacts to form methanol at the same temperature as in step (i).