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The manufacture of Biodiesel from used cooking oil

ABSTRACT                      The increasing awareness of the depletion of fossil fuel resources and the environmental benefits of biodiesel fuel has made it more attractive in recent times. Its primary advantages deal with it being one of the most renewable fuels currently available and it is also non-toxic and biodegradable. It can also be used directly in most diesel engines without requiring extensive engine modifications. However, the cost of biodiesel is the major hurdle to its commercialization in comparison to petroleum-based diesel fuel. The high cost is primarily due to the raw material, mostly neat cooking oil. Used cooking oil is one of the economical sources for biodiesel production. However, the products formed during frying, can affect the transesterification reaction and the biodiesel properties.     The production of biodiesel from waste cooking oil offers a triple-facet solution: economic, environmen...

NAME REACTION

  BRIEF  THEORY , REACTION,  MECHANISM AND APPLICATION OF      Sandmeyer  Reaction            Reimer Tiemann Reaction      Hofmann Bromamide Reaction        1-Sandmeyer Reaction §   Sandmeyer  reaction  affords  a useful  method  for  introducing   a halogen   substituent   at  the  desired   position  of  an  aromatic  ring  . §   The   method  involves   the  conversion  of  an  aromatic  primary  amine   into  an  aryl  diazonium  salt   by  treatment  with  nitrous  acid in  the  presence  of  mineral  acid  (usually  Hydrochloric  acid  and  sulphuric  acid )   at  low  temperatu...