System and method for liquid fuel production from carbonaceous materials using recycled conditioned syngas

A system for using a recycled conditioned syngas, the system comprising:

• a steam reformer connected to a first source of recycled conditioned syngas for combusting therein to provide heat and to produce a first reactor product gas;
• a hydrocarbon reformer connected to a second source of recycled conditioned syngas and to a stream containing oxygen gas to form a combustion zone and/or a reaction zone of the hydrocarbon reformer, and further configured to receive a portion of the first reactor product gas, the hydrocarbon reformer configured to produce an improved syngas;
• and
• at least one gas clean-up system configured to receive the improved syngas and remove at least one contaminant in the improved syngas to produce a new conditioned syngas, the at least one gas clean-up system comprising a gas clean-up system output through which the new conditioned syngas exits,
• wherein the gas clean-up system output serves as the first source of recycled conditioned syngas connected to the steam reformer and as the second source of recycled conditioned syngas connected to the hydrocarbon reformer.