US Patent 9327259 Apparatuses and methods for reforming of hydrocarbons

Apparatuses and methods for reforming of hydrocarbons are presented. In one example, a method comprises burning fuel gas to form a hot flue gas and heat a reforming-zone feedstock that contains (C5-C11) hydrocarbons to form a heated reforming-zone feed stream. The heated reforming-zone feed stream is partially reformed to form a partially reformed effluent. The partially reformed effluent is advanced through a process heat recovery coil arrangement that is recovering heat from the hot flue gas to form a heated partially reformed effluent. The heated partially reformed effluent is contacted with reforming catalyst at reforming conditions effective to form a reforming reaction-zone effluent. The reforming reaction-zone effluent comprises H2, C5+ hydrocarbons including aromatics, and C4− hydrocarbons.