Control of Volatile Organic Compounds Emissions from Manufacturing

The total installed capital cost of the incinerator was $4.7 mil lion.
The estimated operating cost due to supplemental natural gas use is
$0.9 million per year.
2. Sampling and Analytical Techniques - Sarr~ples were taken
simultaneously at a time when propylene oxidations,, separations, and
esterifications were operating smoothly and the combus ti on temperature
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was at a steady state. Adequate time was allowed between the tests
conducted at different temperatures for the incinerator to achieve
steady state. Bags were used to co1le"ct integrated samples and a
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GC/FID was used for organic analysis.
3. Test Results - VOC destruction efficiency was determined at
three - different - - tem~eratures and a residence time of 1.0 second at
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each temperature. The test results are summarized in Table C-6.
Efficiency is found to increase with temperature and, except for 774°C
(l42S0F), is above 98 percent, Theoretical calculations show that
greater efficiency would be achieved at 870°C (1600°F) and 0.75 second
than at the longer - residence times but lower temperatures represented'
in these tests.
0.2.2.3 Union Carbide Corporation (UCC) Test ~ata~. The total
capacity for the UCC acrylatesl facilities is about 90 Gglyr (200
million lbs/yr) of acrolein, acrylic acid, and esters. Acrylic acid
comprises 60 Gg/yr (130 million Ibs/yr) of this total. Ethyl acrylate
capacity is 40 Gg/yr (90 mil lion lbs/yr). Total heavy ester capacities
(such as 2-ethyl-hexyl acrylate) are 50 Gg/yr (110 mil 1 ion 1 bslyr).
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UCC considers butyl acrylate a heavy ester.
The facility was originally built in 1969 and utilized British
Petroleum technology for acrylic acid production,, In 1976 the plant '
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was converted to a technology obtained under license from Sohio.
1. Control Device - The thermal incinerator is one of the two
major control devices used in acrylic acid and acrylate ester manufacture.
The UCC incinerator was installed in 1975 to destroy acrylic acid and
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acrolein vapors. This unit was constructed by John Zink Company for
an installed cost of $3 mi1 lion and incorporates a heat recovery unit
to produce process steam at 4.1 MPa (600 psig). The unit operates at
a relatively constant feed input and supplements the varying flow and
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