Upgrading Stabilizers or Inhibitors

Many distillation processes use stabilizers that reduce the formation of tars as well as minimize unfavorable or side reactions. However, the stabilizers not only become large components of the tar waste stream but also make the waste more viscous. The more viscous the waste stream, the more salable product the waste stream carries with it. Upgrading the stabilizer addition system requires less stabilizer in the process.

The upgrade can include the continuous versus batch addition of a stabilizer or the continuous or more frequent analysis of a stabilizer's presence coupled with the automatic addition or enhanced manual addition of the stabilizer. Another option is to optimize the point of addition, the column versus the reboiler, along with the method of addition.

A stabilizer typically consists of a solid material slur-ried in a solvent used as a carrier. Options for waste reduction also focus on the selection of one of these two components. The addition of a stabilizer in powder form eliminates the solvent. The use of the product as a carrier component is one of the best options.

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