Impact of Contaminants Present in Coal-Biomass Derived Synthesis Gas on Water-gas Shift and Fischer-Tropsch Synthesis Catalysts [electronic resource]

• Ngôn ngữ: eng
• Ký hiệu phân loại: 622.3 *Mining for specific materials
• Thông tin xuất bản: Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy, 2013
• Mô tả vật lý: Size: 110 p. : , digital, PDF file.
• Bộ sưu tập: Metadata
• ID: 265165
• Chủ đề: 1. 01 coal, lignite, and peat; 2. 09 biomass fuels; 3. 10 synthetic fuels

Tóm tắt

 Co-gasification of biomass and coal in large-scale, Integrated Gasification Combined Cycle (IGCC) plants increases the efficiency and reduces the environmental impact of making synthesis gas ("syngas") that can be used in Coal-Biomass-to-Liquids (CBTL) processes for producing transportation fuels. However, the water-gas shift (WGS) and Fischer-Tropsch synthesis (FTS) catalysts used in these processes may be poisoned by multiple contaminants found in coal-biomass derived syngas
  sulfur species, trace toxic metals, halides, nitrogen species, the vapors of alkali metals and their salts (e.g., KCl and NaCl), ammonia, and phosphorous. Thus, it is essential to develop a fundamental understanding of poisoning/inhibition mechanisms before investing in the development of any costly mitigation technologies. We therefore investigated the impact of potential contaminants (H<
 sub>
 2<
 /sub>
 S, NH<
 sub>
 3<
 /sub>
 , HCN, AsH<
 sub>
 3<
 /sub>
 , PH<
 sub>
 3<
 /sub>
 , HCl, NaCl, KCl, AS<
 sub>
 3<
 /sub>
 , NH<
 sub>
 4<
 /sub>
 NO<
 sub>
 3<
 /sub>
 , NH<
 sub>
 4<
 /sub>
 OH, KNO<
 sub>
 3<
 /sub>
 , HBr, HF, and HNO<
 sub>
 3<
 /sub>
 ) on the performance and lifetime of commercially available and generic (prepared in-house) WGS and FT catalysts.