“H_(2)-free” demethoxylation of guaiacol in subcritical water using Pt supported on N-doped carbon catalysts:A cost-effective strategy for biomass upgrading  

作　　者：Laura Pastor-Pérez Wei Jin Juan J.Villora-Picó Qiang Wang M.Mercedes Pastor-Blas Antonio Sepúlveda-Escribano Tomas R.Reina 

机构地区：[1]Department of Chemical and Process Engineering,University of Surrey,Guildford GU27XH,United Kingdom [2]Laboratorio de Materiales Avanzados,Departamento de Química Inorgánica-Instituto Universitario de Materiales de Alicante,Universidad de Alicante,Apartado 99,E-03080 Alicante,Spain [3]College of Environmental Science and Engineering,Beijing Forestry University,Beijing 100083,China

出　　处：《Journal of Energy Chemistry》2021年第7期377-385,共9页能源化学（英文版）

基　　金：provided by the Department of Chemical and Process Engineering at the University of Surrey and the EPSRC grant EP/R512904/1;the Royal Society Research Grant RSGR1180353;financial support from Ministerio de Economía,Industria y Competitividad(Spain)through project MAT2016-80285-P。

摘　　要："H_(2)-free" HDO is a revolutionary route to circumvent the limitations of H_(2)-fed HDO reactors for biomass upgrading.This work demonstrates the viability of this economically appealing route when an adequate catalyst is implemented.Herein,we have developed a new family of Pt catalysts supported on N-doped activated carbons for the H_(2)-free HDO process of guaiacol.Several N-donors have been used to tune the catalyst’s structural and electronic properties.As a general trend,the N-promoted samples are more selective towards oxygen-depleted products.The best performing material,namely Pt/PANI-AC reached outstanding guaiacol conversion values-ca.75% at 300℃ while displaying reasonable stability for multiple recycling operations.The advanced performance is ascribed to the modified electronic and acid-base properties which favor guaiacol activation and C-O cleavage,as well as the excellent dispersion of the Pt nano particles.

关 键 词：Biomass upgrading N-doped carbon PT HDO GUAIACOL H_(2)-free 

分 类 号：TK6[动力工程及工程热物理—生物能] TQ426[化学工程]