Method for refining ethane-contained raw gas in process of preparing phenylethane from ethane

Method for refining ethane-contained raw gas in process of preparing phenylethane from ethane

  • CN 101,659,591 A
  • Filed: 09/15/2009
  • Published: 03/03/2010
  • Est. Priority Date: 09/15/2009
  • Status: Active Application
First Claim
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1. , a kind of process for purification that contains ethylene raw material gas that is used for ethylbenzene manufactured from ethylene technology is characterized in that:

  • 1) contain ethylene raw gas and enter from the bottom of absorption unit, absorption agent enters from absorption unit top, and the refining unstripped gas after absorption agent absorbs enters ethylbenzene device reaction part and produces ethylbenzene with the benzene reaction, and saturated absorption agent enters step

         2);

    2) saturable absorber from step

         1) enters ethene desorption apparatus top, and the desorb ethylene gas at top returns step

         1) circulation and absorbs, and the absorption agent that removes behind the ethene of bottom enters step

         3).3) from step

         2) absorption agent that removes behind the ethene enters propylene desorption apparatus middle part, and the absorption agent after the desorb of bottom returns step

         1) and recycles, and replenishes absorption agent, the desorb propylene gas carrying device at top according to the consumption of absorption agent;

    Wherein said absorption agent is one or more the mixture that is selected from gasoline, diesel oil, kerosene, aviation kerosene, toluene, ethylbenzene, n-proplbenzene, isopropyl benzene, first and second benzene, dimethylbenzene, diethylbenzene, triethyl-benzene and the high boiling material.

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