Sampling and Analysis of Coke-Oven Door Emissions.

摘要

The report gives results of extensive tests of selected fractions of samples of emissions generated by leakage from a coke oven door during a 16-hour coking cycle. The tests included:particulate emissions determination;trace metal analyses;gas analyses;organic analyses by IR spectroscopy,GC-MS,TLC,and HRMS on entire samples or on LC fractions of the samples;and bioassay analyses of bacterial mutagenesis and mammalian cell cytotoxicity. The particulate mass emission determination showed that coke oven emissions can vary considerably from cycle to cycle. The bioassay analyses confirmed that the samples were mutagenic,as implied by the chemical analyses. A sealed hood was fabricated to fit over the coke oven door,so that gases leaking past the door during the coking cycle would be contained and representative samples could be obtained. Additional criteria for the hood included not severely altering the normal door leakage and not interfering with coke oven operation. Initial tests of one hood design suggested modifications which were incorporated into the final design. The final hood was used for conducting two sampling runs at an operating coke oven.