Catalytic charring ratio

Moreover, the ratio cannot be too small; it is necessary to maintain at least a two-stage reheat balance. Adjusting the proportion of repeated burning and double-repeated burning is relatively difficult; it is related to the design of these processes, especially to their ability to prevent burning and to remove heat. It is necessary to determine where the bottleneck lies (Repeated charring capacity or heat absorption capacity) An excessive repeated charring capacity may lead to an insufficient repeated charring capacity. The low ability to burn repeatedly may lead to insufficient capacity for repeated burning (the bottleneck could be air flow or temperature). Furthermore, the H content in coke varies between \"ichi-ai\" and \"ni-ai\", so during the coking process, the rate of hydrogen consumption is much faster than that of carbon consumption. Specifically, one should ask the design institute; those who designed it know best. Each set of installations is different due to various constraints.