Is the Texaco gasifier in hot standby or cold standby?
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This post was last edited by lflsedin on 2015-6-17 21:04. Texaco gasifiers are generally designed with a backup furnace; is the furnace usually in a hot standby state or a cold standby state? Why?
Of course it’s hot standby; usually it’s after modification, as there is an excess of vent gas from subsequent sections, which is sufficient to heat the furnace for standby use
It is in hot standby mode, allowing for immediate switching to another furnace should there be any problems with the operating furnace. If it is in cold standby mode, the furnace needs to be reheated, and this process takes at least a week
What temperature is generally maintained in the gasification furnace for hot standby? What is the approximate fuel gas consumption?
Preheat the furnace, prepare it for use. Generally, at a constant temperature of 1000 degrees, it is necessary to add material or empty the furnace, after which an additional increase of 200–300 degrees is sufficient.
1. In principle, it is a hot standby. Maintain a constant temperature of 850℃. 2. To save diesel, it is also possible to operate in cold standby mode: 1) The furnace is operating well, the equipment is in good condition, and all parameters are stable. 2) When the time since shutting down the operating furnace is long.
If it’s old brick, there’s no need for hot standby； But if there is excess fuel gas, the furnace temperature can be maintained at 400°C; in the event of a failure, it will take over ten hours to raise the furnace temperature to the operating temperature
If hot standby is used, I personally recommend a temperature of 800°C. As for the consumption, it depends on the type of fuel gas used for heating the furnace; with liquefied petroleum gas, at a constant temperature of 800°C, the daily consumption is around 4 tons, resulting in costs of over 30,000 yuan. At the initial stage of operation of a new facility, hot standby can be employed appropriately, but once production becomes more stable and the operating patterns of the gasification furnace are understood, there is no need for hot standby anymore, as it represents significant waste.
We regularly cut the furnace down; it needs to be turned on and started with heating.