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Producer gas is produced by | |
A. | carbonation of coal [Wrong Answer] |
B. | passing steam over incandescent coke [Wrong Answer] |
C. | passing air and a large amount of steam over waste coal at about 65°C [Wrong Answer] |
D. | partial combustion of coal, coke, anthracite coal or charcoal in a mixed air steam blast [Correct Answer] |
E. | same way as the natural gas. [Wrong Answer] |