| abstract |
The invention discloses a method for the co-production of formaldehyde, pyridine and hydrogen peroxide, and belongs to the field of the production field of formaldehyde, pyridine and hydrogen peroxide. The method includes a methanol oxidation process and a purification and separation process. After the formaldehyde mixed gas obtained in the methanol oxidation process is separated by a purification and separation process, formaldehyde gas with a concentration of not less than 98% and hydrogen with a concentration of not less than 99% are obtained. Send pyridine production unit, hydrogen to hydrogen peroxide production unit. Compared with the prior art, the method for co-production of formaldehyde, pyridine and hydrogen peroxide of the present invention overcomes the disadvantages of large investment in existing formaldehyde production equipment, long process flow, waste caused by hydrogen combustion, etc. promotion and application value. |