New Technology for Treatment of Refinery Chemical Cleaning Waste Water

Transcription

1 New Technology for Treatment of Refinery Perry Roland Director Water Treatment Vapor Point Jeff St. Amant President/CEO Vapor Point 4/3/18 Page 1

2 Typical Industrial Waste Water Streams Chemical Cleaning Operations Refractory Exchanges Sour Water Stripper Outages/Capacity Limitations Pipeline Chemical Fouling Storm Water Management De-Salter Mudwash & Cleaning Effluent Process Waters 4/3/18 Page 2

3 Typical Waste Water Treatment Limitations Internal Plant Systems Limited in Capabilities & Capacity Micro-Emulsions Surfactants Sour Water (Ammonia and H 2 S) Pipeline Chemicals Limited Options Off Site Disposal Cost Prohibitive Internal Treatment Make-up > Discharge 4/3/18 Page 3

4 The Electrochemical Process Flexible application electrolytic cell can be customized to fit different waste streams Used for the enhanced separation of water mixtures 4/3/18 Page 4

5 Electrolytic Cell Strengths Can be used in separating phases typical in refinery waste streams Breaks out TPH, organics, suspended solids, and heavy metals 4/3/18 Page 5

6 System Design Customizable Technology Adaptable Footprint Solids Management Em Emissions Management Highly Adaptable to Changing Water Streams Multi-Stage Treatment Process to Ensure Water Meets all Quality Standards Staged Filtration Allows for Easy Capture and Disposal of Solids Waste On Site Field Testing to Ensure Water Quality 4/3/18 Page 6

7 Case Study Gulf Coast Refinery Chemical Cleaning Effluent Post Electrochemical Treatment (with Electrolyte and ph Adjustment) Emulation Breaking and Flocculent Forming 4/3/18 Page 7

8 Case Study Gulf Coast Refinery Chemical Cleaning Effluent Filtration and Water Polishing Filtration can be necessary at any point during the process Type of filtration will change based upon discharge standards Filtration media will change based on constituents of water 4/3/18 Page 8

9 Case Study Gulf Coast Refinery Chemical Cleaning Effluent Post Electrochemical Treatment - After Solids Separation Some foam remains after solids separation After resting for 6 hours foam fully collapsed 4/3/18 Page 9

10 Case Study Gulf Coast Refinery Chemical Cleaning Effluent Foaming Test of Process Water Full Foam Column Half Foam Column All Water Converted Half of Water Converted 5ppm Surfactant Bottled Drinking Water 1ppm Surfactant Treated Process Water 4/3/18 Page 10

11 Case Study Gulf Coast Refinery Chemical Cleaning Effluent Foaming Test of Process Water No Measurable Foam Treated Waste Effluent Sample (0ppm Surfactant) Bottled Drinking Water 4/3/18 Page 11

12 Case Study Gulf Coast Refinery Chemical Cleaning Effluent Foaming Test of Process Water (Gas Chromatograph) Sample with Surfactant Present Pre-Treatment Surfactant Levels Isolated Surfactant Post-Treatment Surfactant Levels Based on these results we can measure down to less than 1ppm Bottled Drinking Water We can also correlate these results to a foam test Treated that can Process be done Water in the field 4/3/18 Page 12

13 Case Study Gulf Coast Refinery Chemical Cleaning Effluent Sample 1 (BOD, COD,TOC) Sample 2 (BOD, COD,TOC) BOD COD TOC Treated Raw R T Benzene Levels Sample 1 Sample 2 Treated Raw Raw Treated B C T O O O D D C Treated Raw Raw Treated Treated Raw Treated Raw Treated Raw Sample 1 = Bottom Tank Draw (Clear, Amber in Color) Sample 2 = Top Tank Draw (Milky, Opaque, Khaki in Color) 4/3/18 Page 13

14 Summary Developed process to reliably field measure surfactant levels System proved capable of removing surfactants and other contaminates from waste water Exceeded all refinery waste water standards All waste can be separated and captured Expanding capabilities to manage other refinery water challenges 4/3/18 Page 14