One-pot aqueous phase catalytic conversion of sorbitol to gasoline over nickel catalyst
The carbon chain extension and hydrodeoxygenation steps play critical roles in the high energy density hydrocarbons production.In-this paper, a systematic study had been carried out to investigate one-pot aqueous phase catalytic conversion of sorbitol to gasoline (STG) over bifunctional Ni-based catalysts.Characterization technologies of N2 physisorption, X-ray diffraction (XRD), Scanning electron microscopy (SEM), transmission electron microscopy (TEM) and NH3 temperature-programmed desorption (NH3-TPD) were used to study the textural properties, phase compositions,acid behavior and morphologies of the catalysts.The catalytic performances were tested in a fixed bed reactor.It was found that the physically mixed Ni/HZSM-5 and Ni/silica-gel (mesoporous SG) catalyst realized the carbon chain extension and exhibited excellent performances on hydrodeoxygenation (HDO) reaction (46.9 % of gasoline (C5-C 12) yield and 45.5 % ofC7-C12 hydrocarbons in the gasoline products).Especially, the temperature of STG (553-593 K) was lower obviously than that of the traditional methanol to gasoline (MTG) process (623-773 K).It provided a novel transformation of sorbitol to long-chain alkanes by one-pot process over the bifunctional catalyst (Ni@HZSM-5/SG),wherein hydrodeoxygenation, ketonization and aldol condensation steps were integrated.
sugar alcohol aqueous phase catalytic conversion sorbitol to gasoline
Yujing Weng Songbai Qiu Ying Xu Mingyue Ding Lungang Chen Qi Zhang Longlong Ma Tiejun Wang
Key Laboratory of Renewable Energy,Guangzhou Institute of Energy Conversion,Chinese Academy of
国内会议
广州
英文
363-377
2015-05-01（万方平台首次上网日期，不代表论文的发表时间）