Direct Fired Heaters

Reformers

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Reformers

The purpose of the reformer is to upgrade heavy naphtha into a high-value gasoline blend stock by raising its octane. The primary product of the reformer is reformate, which is also the primary source of aromatics (such as benzene, toluene, and xylene) that are used as petrochemicals feedstocks. However, it also generates large amounts of hydrogen that can be used in the hydrotreaters and hydrocrackers. Reformer is also known as platformer, hydroskimmer, CRU, CCR, SCR, powerformer, ultraformer, magnaformer, rhenifomer. Reformers are split into two main types of technologies:

  • SR reformer – Older units mostly have fixed beds of catalyst that need to be regenerated every few months by burning off the coke that forms on the catalyst during normal operation. These semi-regen (SR) reformers typically operate at relatively high reactor circuit pressures to minimize the amount of coke formation and to extend the periods between regeneration shutdowns as long as possible, but as a result they only achieve octane numbers of 95-98 in the reformate product
  • CCR – Newer reformers are built with continuous catalyst regeneration (CCR) capability, so they can operate at lower reactor circuit pressures with higher coke make, as the coked up catalyst is moved continuously to a regenerator section where the coke is burned off the catalyst before it is returned to the reactor section. CCR reformers can often operate for three or more years continuously between turnarounds and can produce reformate product with octane numbers of 101-103