Olefin Plant Wastewater Treatment Issues - Unique Challenges and Their Solutions

Source: AIChE
  • Type:
    Conference Presentation
  • Conference Type:
    AIChE Spring Meeting and Global Congress on Process Safety
  • Presentation Date:
    August 19, 2020
  • Duration:
    20 minutes
  • Skill Level:
    Intermediate
  • PDHs:
    0.40

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The ethylene/propylene production industry has been profoundly changed due to the frac gas production. A large number of world class gas steam crackers are being designed or under construction in the Gulf Coast Region and beyond. Although the wastewater production of these units is not as complex compared with integrated refinery/naphtha cracker, it has unique characteristics which will demand careful evaluations. These issues are:

  1. Spent caustic treatment
  2. Quench water pretreatment
  3. Large amount of cooling tower blowdown handling
  4. Biological wastewater treatment due to inorganic nutrient deficiency
  5. Others

The presentation will consist of:

  1. A general discussion of the ethane cracking process and wastewater generation;
  2. Characteristics of effluent streams generated from gas cracking operations;
  3. Challenges handling, treatment and management of gas cracking wastewater;
  4. Wastewater treatment processes – biological treatment operational problems encountered in ethane crackers.
  5. Case histories on the challenges and their mitigation at three crackers globally will be presented.
  6. The remediation steps to control these biological processes deficiencies.
Presenter(s): 
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AIChE Member Credits 0.5
AIChE Members $19.00
AIChE Fuels and Petrochemicals Division Members Free
AIChE Graduate Student Members Free
AIChE Undergraduate Student Members Free
Non-Members $29.00
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