In production procedure the active carbon bed is easily deactivated and sweetening ratio is decreased, thus affecting the quality of gasoline.
介绍了汽油无碱脱臭原理及工艺过程，生产过程中活性炭床层易失去活性而降低脱臭率，从而影响脱臭汽油的质量。
Said active carbon is particle in shape, fixed bed can be used absorption or stirring kettle type absorption to treat phthalic anhydride.
该活性炭为颗粒状，可采用固定床吸附或搅拌釜式吸附处理苯酐。
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