Page 72 - Lignocellulosic Biomass to Liquid Biofuels
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and  biomass increasing  for  methods pretreatment  different  of disadvantages  Disadvantages Advantages  relatively  is consumption  Energy  generally  is reduction  size Mechanical  the  digestibility  cellulose  the  and  high,  most  for  step prerequisite  a  enough  high  not generally  is  few  or  No  process. pretreat
               advantages,  to  reduce  to  specific  disrupt  also  cause  ultrasound,  to  beam  degrade  and  polymerization  by structure  action  heating  high-  using  to  field  wall  cell  the




               mechanisms,  mechanisms  and  digestibility  force mechanical  increasing  thus  can  Milling  and structure  and  cellulose  of  ray,  electron  or  structure,  wall  lignin  and  cellulose  biomass  and  mixing,  by  wall  cell  electric external  across potential





               action,  action  of  cellulose  size  area.  wall  depolymerization  decrystallization  gamma  microwave,  cell  hemicelluloses  deconstruct  shearing,  breakdown

               of   Mode  improve  using  particle  surface  cell  using  disrupt  decrease  strength  electric
               modes         By           By         To       To

               General  digestibility.  pretreatment


               2.2  Pretreatment  Mechanical  comminution  pretreatment  pretreatment  electric  pretreatment
               Table  enzymatic  methods  Physical  Irradiation  Extrusion  Pulsed  field
   67   68   69   70   71   72   73   74   75   76   77