Patent ID: 7785447
Filing Date: 2010-08-31
Classification: C10B,C10L

Abstract:
1. A method of continuously producing high-grade coke from low-grade material without causing a pollution problem, comprising: introducing a first mixture of low-grade non-coking, inexpensive coal fines and another type of inexpensive, carbonaceous fines comprised of waste coke fines, as a feedstock influent into a pyrolyzer; pyrolyzing the displaced mixture in the pyrolyzer to produce a high-grade coke; discharging said coke and pyrolytic by-products as effluents from the pyrolyzer; separating tar effluent from said pyrolytic by-products; continuously introducing mixtures of low grade non-coking inexpensive coal fines and another type of inexpensive, carbonaceous fines comprised of waste coke fines, as a feed stock into said pyrolyzer; continuously introducing said tar effluent into said pyrolyzer; wherein quantities of said low-grade non-coking inexpensive coal fines and said another type of inexpensive carbonaceous fines introduced into said pyrolyzer are adjusted such that said tar effluent, produced by a pyrolyzation of said fines does not exceed a quantity of tar effluent required to continuously maintain said production of coke.