| 摘要 |
filtering hot water/ bunker oil (1:10) through tungsten net (fitted in coalessor inside) to sep. various inorg. salts, (b) decompression distn. process: using baffle cap as a sieve tray with circulation reflux system of turn down ratio 3.5, (c) dewaxing process: smoothly circulating by liq. ring type vacuum pump (that has nothing to do with slack wax amts.) and (d) redecompression distn. process: maintaining the degree of vacuum in tower top about 150 torr to inlet compressed steam into tower top (to 11 beds) to sep. cut of heavy lub oil to about 360 deg.C.
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