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Vacuum Tower chaperter13. Introduction 原料:常压塔塔底出料 产品:润滑油, FCCU 原 料油 操作条件: 闪蒸温度: 380-415 ℃ 压力: 7-14kPa.

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Presentation on theme: "Vacuum Tower chaperter13. Introduction 原料:常压塔塔底出料 产品:润滑油, FCCU 原 料油 操作条件: 闪蒸温度: 380-415 ℃ 压力: 7-14kPa."— Presentation transcript:

1 Vacuum Tower chaperter13

2 Introduction 原料:常压塔塔底出料 产品:润滑油, FCCU 原 料油 操作条件: 闪蒸温度: ℃ 压力: 7-14kPa

3 Analytical Strategies whywhathow PhenomenonReasonSolution

4 Common Troubles Bottoms Pump NPSH Ejector Problems Black Gas Oil Light Resid Introduction Transfer-Line Failures High Flash-Zone Pressure Excessive Production of Trim Gas Oil Low Pumparound Draw Temperatures 9 9 Projects to Improve Gas Oil Recovery

5 1.Bottoms Pump NPSH

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12 2.High Flash-Zone Pressure

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17 3.Ejector Problems

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20 CO , CO 2 , O 2

21 3.Ejector Problems F~(D 2 )*(P 1 ) F=Stream flow D=Nozzle ID P 1 =Motive steam,absolute pressure

22 3.Ejector Problems

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25 4.Black Gas Oil

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27 5.Excessive Production of TGO

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29 6.Low Pumparound Draw Temperature

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31 7.Light Resid

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33 8.Transfer-Line Failures

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35 9.Projects to Improve Gas-oil Recovery

36 Treating liquid hydrocarbons chaperter14

37 Introduction

38 Common Troubles Carry-Over problems Vertical Wash Tower Introduction Correcting Inadequate Treating Excessive Production of Trim Gas Oil Low Pumparound Draw Temperatures 6 6 Projects to Improve Gas Oil Recovery

39 1.Carry-Over Problems

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44 2.Correcting Inadequate Treating

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46 3.Vertical Wash Tower

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49 Vocabulary  Coke 焦化 suction screen 吸入滤网  gland oil 轻质润滑油 resid 渣油  thermal cracking 热裂解 plug 堵塞  flange 法兰 cavitation 空穴  gas oil 柴油 flash zone 闪蒸区域  mercury-filled 水银柱式  demister 除雾器 manometer 压力计  gauge 计量器 trim gas oil 修剪油气  ejector ( jet ) 喷射器 tail gas 废气

50 Vocabulary  clearance 空隙 caliper 卡尺  throttle 节流阀 FCCU 催化裂化装置  dislodge 驱逐,离开原位 HVGO 重真空油  LVGO 轻真空油 trapout 受液盘  naphtha 石脑油 heater pass 加热旁通管  turbine 涡轮 backflush 逆流,回洗  pumparound 泵送系统 wash oil 洗油  mercaptans 硫醇 caustic 腐蚀剂  malfunction 失灵 effluent 污水  settler 沉淀器 residence time 停留时间

51 Vocabulary  butylenes 丁烯 impeller 叶轮  steam tracing 蒸汽伴热 acetate 醋酸盐  Lead acetate paper 乙酸铅试纸  depropanizer 脱丙烷塔  spray heater 喷雾加热器  Overflow 液泛,溢出  rotometer 旋转流量计  propane 丙烷 emulsify 乳化

52 电脱盐

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