“Any steel and metal that is present in the P2
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“Any steel and metal that is present in the P2O feedstock remains in the pre-melt tank and is backed
out every 70 tons (140,000 lb) of plastic feed. The steel and metal are removed in conjunction with petcoke
residue, which is generated in the pyrolysis reactor. Residue from the hopper, pre-melt kiln, and pyrolysis
reactor are collected in a container located below the hopper. Currently, residue removal doesn’t require
complete shut-down. However, during removal, feeding is stopped and the kilns are cooled off .”
“In 2012, JBI Inc. added a third kiln to the P2O unit and an automatic slide gate directly below the hopper to improve residue removal rate. The third kiln is designed to condition the residue to remove it in real time at a rate of 70 lb/hr.” Page 48 of the EEC paper.
http://www.seas.columbia.edu/earth/wtert/sofo...h%2016.pdf
Processor #3 is still being built, so there is not yet any "real time removal".
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