Code of Federal Regulations Title 40. Protection of Environment 40 CFR Pt. 419, App. A—Processes Included in the Determination of BAT Effluent Limitations for Total Chromium, Hexavalent Chromium, and Phenolic Compounds (4AAP)

Crude Processes

1. Atmospheric Crude Distillation

2. Crude Desalting

3. Vacuum Crude Distillation

Cracking and Coking Processes

4. Visbreaking

5. Thermal Cracking

6. Fluid Catalytic Cracking

7. Moving Bed Catalytic Cracking

10. Hydrocracking

15. Delayed Coking

16. Fluid Coking

54. Hydrotreating

Asphalt Processes

18. Asphalt Production

32. 200°F Softening Point Unfluxed Asphalt

43. Asphalt Oxidizing

89. Asphalt Emulsifying

Lube Processes

21. Hydrofining, Hydrofinishing, Lube Hydrofining

22. White Oil Manufacture

23. Propane Dewaxing, Propane Deasphalting, Propane Fractioning, Propane Deresining

24. Duo Sol, Solvent Treating, Solvent Extraction, Duotreating, Solvent Dewaxing, Solvent Deasphalting

25. Lube Vac Twr, Oil Fractionation, Batch Still (Naphtha Strip), Bright Stock Treating

26. Centrifuge and Chilling

27. MEK Dewaxing, Ketone Dewaxing, MEK–Toluene Dewaxing

28. Deoiling (wax)

29. Naphthenic Lubes Production

30. SO₂ Extraction

34. Wax Pressing

35. Wax Plant (with Neutral Separation)

36. Furfural Extraction

37. Clay Contacting—Percolation

38. Wax Sweating

39. Acid Treating

40. Phenol Extraction

Reforming and Alkylation Processes

8. H₂ SO₄ Alkylation

12. Catalytic Reforming