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The original thermal hydrodealkylation (HDA) process was developed by Arco and HRI (now Axens North America).

This well-established process is the most attractive route to high purity benzene production from toluene, ethylbenzene and mixed xylenes and even C9-C11 aromatics .

The non catalytic process is efficient in regard to both yield and energy consumption; it uses Axens' proprietary knowhow in plug-flow reactor design with multiple quench injection points, optimum heat recovery, diphenyl recycle, and the most recent hydrogen recovery technology.

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HDA - Commercial Bulletin cadenas

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