The present description is related to the field of hydrocarbon production by gasification of carbonaceous material. More specifically it discloses a method for naphthalene removal from a gas using a solid adsorbent material comprising benzene for the removal. The removal can be applied to e.g. crude syngas main stream and/or carbon dioxide exhaust side stream. Preferably the adsorption to the adsorbent material is reversible so that the material can be reused and naphthalene and possibly benzene recovered after regeneration.
