| 摘要 |
<p>Two sets of filter candles (5,5a), made of heat resistant material are used. The ends of the candles dip into the fluidized bed. There are nine times as many candles of type (5) then of type (5a), the difference between them being that type (5a) has larger pores so that dust particles up to a given size can pass through and into a by-pass line (8) and an external fine filter (9). In a process to remove dust from a catalytic reactor for the oxidative chlorination of ethylene, two sets of filter candles (5,5a), made of heat resistant material such as ceramic or sintered metal, are used. The ends of the candles dip into the fluid bed. There will be nine times as many candles of type (5) as of type (5a). The difference between them is that type (5a) has larger pores so that dust particles up to a given size can pass through and into a by-pass line (8) and an external fine filter (9). Preferred Features: The bypass is controlled to maintain a constantly mobile fluid bed using criteria such as bed density and heat transfer. The product is chilled outside the reactor. An independent claim is included for the reactor for carrying out ethylene oxychlorination containing apparatus for carrying out the above method.</p> |
