Synthesis of carbon nanomaterials from corn waste (DDGS)

Quimica nova

Alves, Joner Oliveira¹  Zhuo, Chuanwei²  Levendis, Yiannis Angelo²  Tenório, Jorge Alberto Soares³ 

[1] Aperam South America, Timóteo, Brasil;Northeastern University, Boston, EUA;Universidade de São Paulo, São Paulo, Brasil

关键词: nanomaterials;    DDGS;    pyrolysis.;   

DOI  :  10.1590/S0100-40422012000800008

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

The world's largest ethanol producer (USA) uses corn as feedstock. DDGS (distillers dried grains with solubles) is the main waste generated from this process (around 32 million t/year). DDGS samples were pyrolyzed at 1000 ºC in a furnace with controlled atmosphere. The effluent was channeled to a second furnace, in which catalyst substrates were placed. Chromatographic analysis was used to evaluate the gaseous effluents, showing that the catalyst reduced hydrocarbon emissions. The solid products formed were analyzed by SEM and TEM. Graphitic structures and carbon nanofibers, 50 µm in length and with diameters of 80-200 nm, were formed.

【 授权许可】

CC BY