Table 19. Petrochemical Processes as Waste Sources 

 (Source: Reference 27) 



ProcLSS 



Source 



FoLluCants 



Alkylacion: Ethylbcnjene 

 Amnonia Produccton 



Arotnatlcs Recovery 

 C«calyclc Cracking 



CacalyCic Reforming 

 Crude Processing 



Cyanide Production 



Dchydrogenacion 



Butadiene Prod, fron 

 n-Butane and 

 Bucylene 



Ketone Production 



Styrenc from Ethyl- 

 benzene 



Desulfurizatlon 



Extraction and Purification 

 Isobutylene 



Bucylene 



Scyrene 



Butadiene Absorption 



Extractive Distilla- 

 tion 



Halogcnation (Principally 

 Chlorination) 



Addition to Olefins 



Subftitution 



Hypochlorlnation 

 H>'d r och 1 or 1 nation 



Demlneralizatlon 



Regeneration, Process 

 Condensates 



Furnace Effluents 



Extract Water 



Solvent Purification 



Catalyst Regeneration 



Reactor Effluents and 

 Condensates 



Condensates 



Crude Washing 

 Primary Diatillation 



Water Slops 

 Quench Waters 



Distillation Slops 



Catalyst 



Condensates from Spray 

 Tower 



Acid and CaustLc Wastes 



Tar, Hydrochloric Acid, Caustic Soda, Fuel Oil 



Acids .Bases 



Aimnonla 



Carbon Dioxide, Carbon Monoxide 



Aromatic Hydrocarbons 



Solvents - Sulfur Dioxide, Dlethylene Glycol 



Spent Catalyst, Catalyst Fines (Silica , Alumina 

 Hydrocarbons, Carbon Monoxide, Nitrogen Oxides ) 



Acids, Phenolic Compounds, Hydrogen Sulfide 

 Soluble Hydrocarbons, Sulfur Oxides, Cyanides 



Catalyst (particularly Pt, Mo), Aromatic 

 Hydrocarbons, Hydrogen Sulfide, Anvnonia 



Inorganic Salts, Oils, Water Soluble Hydrocarbons 



Hydrocarbons, Tars, Anmonla, Acids, Hydrogen 

 Sulfide 



Hydrogen Cyanide, Unreacted Soluble Hydrocarbons 



Kcilduc (Taa, Tara , Olla, Soluble Hydrocarbons 



Hydrocarbon Polymers, Chlorinated Hydrocarbons, 

 Glycerol, Sodium Chloride 



Spent Catalyst (Fe , Mg, K, Cu , Cr, Zn) 



Aromatic Hydrocarbons, including Styrene, Ethyl 

 Benzene, and Toluene, Tars 



Hydrogen Sulfide, Mercaptans 



Sulfuric Acid, C Hydrocarbon, Caustic Soda 



Solvent and Caustic Wash Acetone, Oils, C, Hydrocarbon, 'Caustic Soda, Sulfuric Acid 



Still Bottoms 



Solvent 



Solvent 



Heavy Tars 



Cuprous Add 



Furfural, C, Hydrocarbons 



Cuprous Aomonium Acetate, C, Hydrocarbons, Oils 



Separator 

 HCl Absorber, 



Scrubber 



Spent Caustic 



Chlorine, Hydrogen Chloride, Spent Caustic, 

 Hydrocarbon Isomers and Chlorinated Products, Olla 



Oahydrohalogenation 



Hydrolysis 



Surge Tank 



Dilute Salt Solution 



Calcium Chloride, Soluble Organlcs, Tars 



Tars, Spent Catalyst, Alkyl Hal idea 



continued 



70 



