FIELD: chemistry.
SUBSTANCE: invention pertains to the method of obtaining xylol vapour using selective methylation toluene, involving reaction of a mixture of reagents, containing toluene, methanol and additional water with a catalyst based on modified oxide of zeolite ZSM-5 in a flow reactor and with reaction time of the mixture of reagents and catalyst less than 1 second. The method is implemented at temperature ranging from 250 to 500°C.
EFFECT: use of the given method limits formation of coke in the catalyst.
14 cl, 4 dwg, 8 ex, 1 tbl.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF PREPARING PARA-XYLENE BY SELECTIVE METHYLATION OF TOLUENE WITH METHYL HALIDES | 1994 |
|
RU2142448C1 |
| PREPARATION OF PARA-XYLENE | 2014 |
|
RU2659066C2 |
| SYNTHESIS OF ALKYLATED AROMATIC HYDROCARBONS FROM METHANE | 2005 |
|
RU2417974C2 |
| COMBINED PRODUCTION OF AROMATIC COMPOUNDS IN APPARATUS FOR PRODUCING PROPYLENE FROM METHANOL | 2007 |
|
RU2462446C2 |
| PRODUCTION OF XYLENES BY METHYLATING AROMATIC COMPOUNDS | 2012 |
|
RU2624013C2 |
| METHOD OF PRODUCING P-XYLENE AND SYNTHESIS GAS (VERSIONS) | 1996 |
|
RU2115644C1 |
| SELECTIVE PRODUCTION OF PARA-XYLENE VIA METHYLATION OF TOLUENE | 1997 |
|
RU2179964C2 |
| METHOD OF MODIFYING FORM-SELECTIVITY OF ALUMINOSILICATE ZEOLITE CATALYST AND METHOD FOR PARA-SELECTIVE CONVERSION OF ALKYLAROMATIC COMPOUNDS | 1994 |
|
RU2124944C1 |
| METHOD OF DISPROPORTIONATING TOLUENE | 1993 |
|
RU2131862C1 |
| P-XYLENE PRODUCTION PROCESS (VERSIONS) | 1996 |
|
RU2114811C1 |
