Methods for gasification of carbonaceous materials

Abstract

The present disclosure is generally directed to process of gasification of carbonaceous materials to produce synthesis gas or syngas. The present disclosure provides improved methods of gasification comprising adding a molecular oxygen- containing gas and optionally adding water into said gasifier. This disclosure is also directed to process of production of one or more alcohols from said syngas via fermentation or digestion in the presence of at least one microorganism.

Description

technical field [0001] The present disclosure generally relates to methods of gasifying carbonaceous materials to produce synthesis gas or syngas. The present disclosure also relates to methods of producing one or more alcohols from said syngas via fermentation or digestion in the presence of at least one microorganism. Background technique [0002] The present disclosure contemplates the gasification of carbonaceous materials to produce carbon monoxide (CO), carbon dioxide (CO 2 ), and hydrogen (H 2 ) of synthetic gas. Syngas can be used to produce one or more chemical substances, either biologically or chemically. Syngas can also be used to generate energy to generate electricity. [0003] Therefore, the synthesis gas can be used to produce alcohol (methanol, ethanol, propanol, butanol, etc.), acetic acid, acetate, hydrogen, etc. through the fermentation or digestion of certain microorganisms. Several strains of acetogens have been described for the production of liqu...

AI Technical Summary

Problems solved by technology

The amount of unreacted carbon in the ash increases, increasing the difficulty and cost of disposing of the ash

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