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Source: E.C. Moretti and N. Mukhopadhyay, 1993, VOC control: Current practices and future trends, Chem. Eng. Progress 89, no. 7:20-26. Notes: Users of VOC control technology project (1993) that about 43% of their capital expenditures will be in thermal oxidizers. aRemoval efficiencies 95-99 + % Capital Costs $10-200/cfm (recuperative)

$30-450/cfm (regenerative) Annual Operating Costs $15-90/cfm (recuperative) $20-150/cfm (regenerative) Up to 95% energy recovery is possible Not recommended for batch operations

Source: E.C. Moretti and N. Mukhopadhyay, 1993, VOC control: Current practices and future trends, Chem. Eng. Progress 89, no. 7:20-26. Notes: Users of VOC control technology project (1993) that about 43% of their capital expenditures will be in thermal oxidizers. aRemoval efficiencies 95-99 + % Capital Costs $10-200/cfm (recuperative)

$30-450/cfm (regenerative) Annual Operating Costs $15-90/cfm (recuperative) $20-150/cfm (regenerative) Up to 95% energy recovery is possible Not recommended for batch operations

PV = process vents ST = storage tanks TO = transfer operations WW = wastewater operations F = fugitive

AHC = aliphatic and aromatic HCs HHC = halogenated hydrocarbons

A = alcohols, glycol ethers, ethers, epoxides, and phenols K = ketones and aldehydes HR = heat recovery

Bed #1 cooling

Pilot

From process

FIG. 5.21.1 Diagram of a regenerative thermal oxidizer.

Bed #1 cooling

From process

FIG. 5.21.1 Diagram of a regenerative thermal oxidizer.

FIG. 5.21.2 Recuperation-type afterburner.

Pilot

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