Matrix asphalt production method

Matrix asphalt production method

  • CN 104,610,995 A
  • Filed: 11/05/2013
  • Published: 05/13/2015
  • Est. Priority Date: 11/05/2013
  • Status: Active Grant
First Claim
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1. a production method for matrix pitch, comprises following content:

  • (1) long residuum of crude oil after air distillation enters the desuperheating section top of coking main fractionating tower, at tower desuperheating section and pyrogenic reaction hydrocarbons contact;

    (2) the lighting end gasification rising in long residuum realizes cutting with pyrogenic reaction oil gas in coking main fractionating tower;

    (3) long residuum and the coking heavy cycle oil that are stripped of lighting end mix at the bottom of coking main fractionating tower tower;

    (4) draw before one logistics removes the vacuum furnace of vacuum distillation apparatus at the bottom of coking main fractionating tower tower, be heated to 380 DEG C ~ 420 DEG C and enter vacuum still;

    (5) in vacuum still, carry out underpressure distillation, extract lighter component, component at the bottom of vacuum still tower is extracted out as straight-run pitch raw material.

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