| 摘要 |
Disclosed is a process for the production of maleic anhydride, which comprises: reacting a hydrocarbon with an oxygen-containing gas in the presence of a catalyst; recovering maleic anhydride from the reaction gas; recovering unreacted hydrocarbon from the remaining gas; and returning the hydrocarbon thus recovered to the reactor for re-use, wherein said reaction is effected under the conditions such that the hydrocarbon concentration X (vol %) and oxygen concentration Y (vol) in all the gases to be fed into the reactor, the hydrocarbon conversion Z (t) in the reactor and the oxygen concentration W (vol %) in all the effluent gases from the reactor satisfy the following relationships: <paragraph lvl="0"><in-line-formula>Y>=20, </in-line-formula><paragraph lvl="0"><in-line-formula>X+Y<=70, </in-line-formula><paragraph lvl="0"><in-line-formula>1<=Y/X<=5, and </in-line-formula><paragraph lvl="0"><in-line-formula>20(Y-10)/X<=Z<=25Y/X or 2<=W<=10. </in-line-formula>
|
