Optimization methods for ash deposition at the outlet of the synthesis gas pipeline in the quench chamber of the gasifier

Based on my current understanding, I believe that having a large amount of water in the synthetic gas pipeline can help solve the problem of ash presence. It was originally thought that it was better to avoid having water in the pipeline, but later high-temperature condensate was sprayed into this pipeline; and now, synthetic gas pipelines in semi-waste-boiler systems operate with water present – and this approach has proven to be feasible over time.

How often is your system cleaned? Water in the syngas outlet can be mitigated, but after a certain period of time, blockages will still occur. At the moment, we clean it every six months or so.

Stop and clean it at the end of each cycle.

I doubt that the large amount of water in the synthetic gas pipeline indicates that the quenching chamber is not functioning properly as intended; moreover, such a large amount of water also increases the workload on the subsequent systems, which is detrimental to the overall process. Ash deposition in the syngas pipeline is a normal phenomenon; efforts should be made to reduce the ash content in the syngas as well as to minimize ash deposition. In my opinion, the following measures can be taken: 1. Select coal types with an appropriate ash content; 2. Increase the circulation rate of the cooling water in the quench chamber and ensure that the water used for circulation is as clean as possible, avoiding the reuse of water with high ash content; 3. Ensure that the gasifier operates at high load levels to maintain a high gas velocity; 4. Avoid pressure fluctuations in the gasifier. Under normal operating conditions, the ash accumulation in the synthesis gas pipeline should not cause blockages. If my opinion is wrong, please don’t criticize me!