Aqueous phase reforming of pilot-scale Fischer-Tropsch water effluent for sustainable hydrogen production

نویسندگان

چکیده

Fischer-Tropsch (FT) synthesis produces an aqueous stream containing light oxygenates as major by-product. The low carbon concentration of the organics makes its thermal recovery unprofitable. Thus, novel processes are needed to utilize this waste content. In work, phase reforming wastewater obtained from a 15 kWth plant was explored promising process produce hydrogen at mild temperatures. FT product water firstly characterized and afterward subjected different reaction temperatures time, using platinum catalyst supported on activated carbon. It observed that, besides activity, selectivity towards favored higher temperatures; equally, increasing time allowed obtain total conversion most molecules found in solution, without decreasing reaching plateau 4 hours productivity. order get more insights into mechanism distribution derived APR water, several tests were performed with single compounds, finding characteristic features. importance position hydroxyl group molecule structure highlighted, secondary alcohols prone dehydrogenation pathways compared primary alcohols. Moreover, no interference among substrates reported despite mixture is constituted by molecules: fact, results real analogous linear combination compound tests. Finally, reuse showed appreciable deactivation phenomena.

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ژورنال

عنوان ژورنال: Catalysis Today

سال: 2021

ISSN: ['0920-5861', '1873-4308']

DOI: https://doi.org/10.1016/j.cattod.2020.04.024