Gasification principle of two-stage coal gasifier

Gasification principle of two-stage coal gasifier

According to the production characteristics of the two-stage gas producer, the furnace is generally divided into five zones:

1. Drying and preheating area of coal;

2. Dry distillation, pyrolysis and coking area of coal;

3. Reduction reaction zone;

4. The oxidation reaction zone provides heat for semi-coke and coke;

5. Gasification agent preheating, ash and slag cooling zone.

The above five divisions are divided into two stages.

Section A-the gasification section also becomes the lower section.

Section B-pyrolysis and dry distillation to produce semi-coke and coke section, also becomes the upper section.

Two-stage furnace gasification level, gasification layer thickness and gasification layer temperature