| 摘要 |
A catalyst supply device ( 1 ) has a catalyst vessel ( 2 ) in which catalyst slurry ( 10 ) is placed; an automatic suction valve ( 3 ) connected to the downstream side of the catalyst slurry supply vessel ( 2 ); three-way piping ( 4 ) for connecting the automatic suction valve ( 3 ), automatic discharge valve ( 6 ), and a positive displacement pump ( 5 ); and the positive displacement pump ( 5 ) and the automatic discharge valve ( 6 ) that are connected to the three-way piping ( 4 ). The catalyst supply device ( 1 ) supplies the catalyst slurry ( 10 ) to a reaction vessel ( 7 ) without causing a catalyst ( 11 ) to enter into the inside of the positive displacement pump ( 5 ).
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