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Raw material of hydrogenation cracking device filters the choice of plan
From;    Author:Stand originally
Raw material of hydrogenation cracking device filters the choice of plan
Raw material of hydrogenation cracking device filters the choice of plan
Heng Tao of Li Fengling Liu
(Branch of petrifaction of Dalian of Inc. of Chinese oil natural gas, liaoning Dalian 116032)
Summary: To a paragraph of part raw material of device of circular hydrogenation cracking filters the program of 2 kinds of designs of flow undertook analytic contrast, pass contrast, chose a kind of sounder design plan.
Keyword: Hydrogenation cracking; Filter; Secure bed reactor; Solid grain; Filter flow
The graph classifies date in: TQ 051. 85 document mark piles up: B
Hydrogenation is the important process that oil machines, its purpose basically is the impurity such as the sulfur in shucking off oil through hydrogenation, nitrogen, oxygen and metal, in order to improve oily quality quantity, the pollution that reduces pair of environments, it is to make heavier raw material presses next splitting decomposition to be light qualitative fuel in high hydrogenous component next.
Device of great majority hydrogenation uses fixed bed reactor, this is in with respect to raw material of requirement hydrogenation device enter reactor to take off the solid grain content in raw material as far as possible before get rid of. Otherwise content of grain of this part solid is met block reactor, make bed lamination falls rise, bring about plant shutdown. This not only the activator that can add unit is used up, still can bring adverse effect to production at the same time, bring huge pecuniary loss to the enterprise even. Want so as far as possible can the solid grain content of block bed layer is in enter reactor to pass filter eliminate before. Ought to point out, the compound of metal of oily dissolve sex in raw material, colloid, bitumen pledges and reaction writtens guarantee Jiao Ye can bring about block of activator bed layer, and these block content can be not taken off through filter except.
To hydrogenation device, the amount that place of different raw material contains solid grain substance is different. For example the mark of quality of solid grain content of naphtha and kerosene is commonly (0. × of 5 ~ 10) 10 one, the mark of quality of solid grain content of derv and decompression candle oil is commonly (× of 20 ~ 600) 10 one, the mark of quality of solid grain content of residuum is commonly (200~1 200) × 10 one.
Generally speaking, the particle of solid grain content that 25 M is more than in raw material occupies the 8O of quality of solid grain content, and the 5 that the amount holds sum total of solid grain content only. Diameter of content of grain of the solid in general requirement raw material is less than 25 M. Filter of such hydrogenation device raw material want to take off the solid grain content that is more than 25 M only except, can assure activator bed layer won't because of block of solid grain content shutdown.
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