AFMC AFMC Solved Paper-2001

  • question_answer
    \[CO+{{H}_{2}}\xrightarrow[Co\,or\,Ni]{43\,K,\,1.1\,atmosphere}\]mixture of   hydrocarbons \[+{{H}_{2}}O\] The above reaction is :

    A) Bergius process

    B) Fischer-Tropsch process

    C) Kolbe's process

    D) none of the above

    Correct Answer: B

    Solution :

    This process is for the synthesis of synthetic petrol and is known as Fischer-Tropsch  process \[\underset{\operatorname{Re}d\,coke\,Steam}{\mathop{C+{{H}_{2}}O}}\,\xrightarrow{{}}\underbrace{CO+{{H}_{2}}}_{Water\,gas}\] \[\underbrace{CO+{{H}_{2}}}_{excess}\underset{Co/Ni\,catalyst}{\mathop{\xrightarrow[1-10\,\,atm]{473\,K}}}\,\]Mixture of hydrocarbons \[+{{H}_{2}}O\] Bergius process is also used for manufacture of synthetic petrol        \[C+{{H}_{2}}\underset{750\,K}{\mathop{\xrightarrow[200-250\,atm]{Iron\,oxide}}}\,\]Mixture of hydrocarbons Kolbe's process is used for manufacture of hydrocarbons.


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