【3D Process Flow】--Continuous Catalytic Reforming (CCR Platforming) Process Flow
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【3D Process Flow】Summary Post – Useful for learning about the process flow: https://bbs.hcbbs.com/thread-5711616-1-1.html ----------------------------------------------------------1. Raw material buffering and heating system: This section shows the initial processing and heating of naphtha raw materials once they enter the facility. The raw material first enters the feed buffer tank to stabilize the flow rate and remove moisture, and then is pressurized by a pump. Subsequently, the high-pressure feedstock is mixed with recycled hydrogen, and heat exchange takes place in counterflow with the high-temperature reaction products in a large vertical feed heat exchanger (VCFE). Finally, it is heated to the desired reaction temperature in a heater.
2. The reactor system is the core component of the CCR process, showing four reactors stacked vertically. The heated reaction gas flows through each reactor from top to bottom, where the reforming reaction takes place in the radially flowing catalyst bed. Since the reaction is highly endothermic, the gas needs to be reheated in an intermediate heater after each reactor. At the same time, the catalyst moves slowly downward under the effect of gravity, flowing from one reactor to the next, and is finally discharged from the bottom.
3. Product separation and fractionation system: The high-temperature products exiting the final reactor are cooled by VCFE and other coolers before entering the product separator for gas-liquid separation. The hydrogen-rich gas separated is pressurized by a compressor and then recycled back to the reaction system. The separated liquid reformate then enters a stabilizer tower, where light components are removed through distillation to yield the final stabilized reformate product.
4. Continuous catalyst regeneration system: This diagram shows the continuous regeneration cycle of the catalyst. The catalyst that has accumulated carbon is discharged from the bottom of the reactor and transported to the top of the regenerator via a lockhopper and a lift pipe. Inside the regenerator, the catalyst flows under the action of gravity through areas such as coking, oxychlorination, drying, and cooling, thereby restoring its activity. The regenerated catalyst is returned to the top of the first reactor via the lockhopper and lift pipe, completing the cycle.
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