Control of Volatile Organic Compounds Emissions from Manufacturing

5.0 CONTROL COST ANALYSIS OF RACT
This chapter presents assumptions, procedures, and results of the
analysis to estimate the costs of controlling volatile organic compounds
(VOC) emissions from the polymers and resins industry. The results are
estimates of capital costs, annualized costs, and costs of emission
reductions, for a range of existing control levels. The following
sections present outlines of the bases for estimating control costs for
flares, thermal incinerators, catalytic incinerators, and condensers
(more detailed procedures are given in Appendix E) and the results of
the cost analyses for each model plant.
5.1 BASES OF COST ANALYSES
The cost analysis consists of two steps for each control system:
designing a system that will reliably maintain the desired efficiency
and estimating capital and operating costs for such a system. Designing
a control system for process VOC emissions requires an analysis of the
waste gas characteristics of the combined stream to each control device
specified for a model plant. The various streams for each model plant
were assumed to have the same compositions assumed for the new source
performance standard cost analysi s.1 The stream characteristics along
with mass and energy balances are the basis for determining the equipment
sizes, operating parameters, and operating requirements (e.g., fuel ) .
Once these control system parameters have been determined, then the
capital and annual costs can be calculated. The capital cost estimates
for each control device and model plant combination include purchase and
instal lation of the control or monitori n'g devices and piping systems
necessary for proper control of continuous process VOC emissions from
each model plant.
All process VOC control capital costs are converted to June 1980
dollars using the plant cost indices published in the Chemical Engineering
Economic Indicators. The installed capital costs for process controls
represent the total investment, incl udi ng indi rect costs such as engineering
and contractors ' fees and overhead, requi red for purchase and instal lati on
of all equipment and materials for the control systems. These are