Media Liquid
Origin Caustic scrubber
Destination Battery limit
Quantity Batch operation (see process book)
Composition 2 % wt NaOH, 10% wt NaCl, dissolved HC, H
2
O
2.6.2. Dryers regeneration Oily water
Media Liquid
Origin Discharge from regenerant degasser
Destination Oily water sewer
Quantity Maximum quantity estimated with maximum water content of feeds
Composition H
2
O, hydrocarbons
Light components
Media Gas
Origin Regenerant degasser
Destination Flare
Quantity ?
Composition CO
2
, VOCs, NOx
2.6.3. Solid wastes Catalyst
Media Solid
Origin Reactors
Destination Disposal in landfill or regeneration
Quantity Depends on reactor size
Composition Contaminated catalyst
Used catalysts from isomerization are either disposed of in landfill or regenerated ex-situ.
These wastes are generally reclaimed due to their precious metal content.
Spent platinum chloride and spent aluminium chloride catalysts are expected to have a small
concentration of contaminants as these catalysts require a clean feed. However, they are
expected to contain dioxins because of the presence of chlorine in the process.
32
Adsorbent
Media Solid
Origin Naphtha and H
2
feeds purification, product separation.
