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Abstract

Processes are disclosed that utilize beneficial reactions downstream of carbonaceous feed (e.g., biomass) oxidative conversion technologies, and advantageously under conditions (e.g., high temperatures) and/or with the syngas effluent quality (e.g., having particulates and/or other impurities) characteristic of raw syngas exiting such technologies (e.g., prior to, or upstream of, certain syngas purification operations). Such conversion technologies utilize an oxygen-containing feed or, more broadly, an oxidant-containing feed. The beneficial reactions may be carried out by the introduction of hydrogen for performing the reverse water-gas shift (RWGS) reaction and/or by the introduction of one or more hydrocarbons (e.g., methane, ethane, and/or propane) for performing the dry reforming reaction. These and other reactions can advantageously adjust the composition of the syngas obtained (e.g., as the raw syngas from an oxidative conversion technology) in a manner benefitting its subsequent use in providing value-added products such as liquid hydrocarbons.

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First Claim