食用油精炼厂工艺流程图
2页
1、Phosphoric acid (dosage depend on the quality of crude oil)Heat exchanger(heat up)精炼二厂中和段The neutralization stage of second refine plantHeat exchanger(heat up)Crude oil TankHeat exchanger(between oil and crude oil)磷酸（按油品质量调节）MixCrude oil Tank毛油罐磷酸混合器加热器6275油油换热器AFilter aidCaustic sodaFFA、P液碱（按油品质量调节）Retort TankMixCoolerHeat exchangerRetort Tank冷却器油油换热器B酸反应罐碱混合器助滤剂（按残皂量调节）Filter aid tankCentrifuge加热器8590加助滤剂罐离心机碱反应罐FFA、SaopNeutralized oil tankPre-decoloration filterDrying chamber干燥罐200tor中和油暂存罐预脱
2、色过滤机FFA、Saop备注：标注处为关键工序及检测点Note： are critical process and check point精炼厂物理段The physics refine stage of refine plantNeutralized oil tankNote： are critical process and check pointRefined oil Last FilterCirculating(FFA disqualification)Circulating(color disqualification)Decolored oil tankHeat recycleHeat recycleCoolerHeat exchanger(between oil and oil)Heat exchanger(between oil and oil)Heat exchanger(between oil and oil)Deodorizing towerHigh pressure steam heaterUsed carclazyteFilter separatorFilterClayBleaching towerPremixSteam heaterPre-decolorationHeat exchanger(heat recycle)油-油换热器(热能回收)HE601蒸汽加热器TK625预混罐B610脱色塔FL691/692/693过滤机TK770脱色暂存罐HE702油-油换热器VHE704高压蒸汽加热器DEO710脱臭塔VHE703油-油换热器RecoveryHE706冷却换热器精滤FL790FFACOLORP烟点中和油储罐成品油白土（按油品质量调节）废白土COLOR不合格循环FFA不合格循环备注：标注处为关键工序及检测点FFACOLOR热能回收热能回收HE600油-油换热器预脱色过滤循环
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