The issue of reformate separation temperature in continuous reforming
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I would like to ask that the separation temperature of the reforming products in continuous reforming is too high. What phenomena, hazards, and impacts will there be? Thank you.
This may increase the purity of the cyclic hydrogen light hydrocarbons and decrease it. A disguised way of reducing the hydrogen-to-oil ratio, in my opinion
This prevents some light hydrocarbons from cooling down, causing them to enter the circulating hydrogen and reducing its purity.
An increase in the amount of circulating hydrogen leads to a higher load on the compressor and higher energy consumption. Low purity of recycled hydrogen can easily cause coking in subsequent catalysts. The reduction effect is also poor. Relatively speaking, the liquid yield will also decrease
Light hydrocarbons cannot be cooled down; when they enter the circulating hydrogen, they also make their way to the subsequent dechlorination tanks, causing the dechlorinating agents to become inert due to being surrounded by light hydrocarbons, which in turn allows chlorine to penetrate the bed.
Reducing the purity of the circulating hydrogen, with light hydrocarbons entering the booster, is detrimental to the booster
A decrease in hydrogen purity has a certain impact on the reaction; meanwhile, the catalyst tends to coking, and furthermore, liquid in the compressor can cause equipment damage
A higher separation temperature results in higher energy consumption.
1. The purity of the recycled hydrogen decreases, and coking on the catalyst surface worsens. 2. The primary seal gas used in the recycled hydrogen compressor is process gas intended for normal operations, which can cause damage to the dry gas seal. 3. The pressure difference across the reaction heat exchanger increases