ABSTRACT

The first reaction is exothermic ( — 18,00(1 litulb-mole), and the second is slightly endothermic (350( [3tu'lb-mole).

Figure 13.1 — HDA Reactor Section with Gas Recycle

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WIC 4-4

Two fresh feeds streams are introduced into the process: a gaseous fresh hydrogen feed (484 lb-molihr, 98 morit [12 and 2 mol% methane) and a liquid toluene feed (37() lb-mol!hr). These are combined %NMI a large gas recycle stream, which is a mixture of hydrouen and methane. The mixed stream is heated in feedeffluent heat exchanger (FE1-11i). using the hot reactor effluent. A fired furnace follows the heat exchanger to raise the temperature of the reactor inlet to 1150T. The pressure at the reactor inlet is about 521 Asia.