Filtering application technology for slurry bed reactor catalyst

Abstract

The invention discloses a filtering application technology for a slurry bed reactor catalyst. The technology is characterized in that a full-automatic cluster filter and related accessory equipment are connected with a straight pipe between a BYD reactor and a precise filter; other technological processes are not changed; an original main technology is not changed in an original BDO ethynylation technology; only the cluster filter and related accessory equipment are added; the original technology can be returned at any time, and is not affected; and catalyst particles flowing from a BYD ethynylation reactor are automatically intercepted by a new technology, and are automatically returned to a BYD ethynylation reactor, so that the loss of a catalyst is avoided; the amount of a filter core of a lower-order precise filter is reduced; the labor intensity of an operator is relieved; the precise filter can be an automatic filter, can also be used as recycling equipment of a waste catalyst after the catalyst is inactivated; special waste catalyst recycling equipment and system are not needed; the technology is dual-purpose; and the cost and the investment are reduced.

Description

technical field [0001] In the traditional BDO (1,4-butanediol) REPPE production process in the past, the BYD reactor in the acetylenization reaction section of the present invention is specifically a slurry bed reactor catalyst filtration application system process and device. Butynediol is produced by the reaction of acetylene and formaldehyde, which belongs to the fields of coal chemical industry and petrochemical industry. Background technique [0002] Butyne diol: English name 2-Butyne-1,4-diol, BYD, Chinese alias 1,4-butyne diol BOZ; 2-butyne-1,4-diol electroplating luminescent agent; 1,4- Butynediol; 1,4-dihydroxy-2-butyne; dihydroxydimethylacetylene; bismethylolacetylene; 2-butyne-1,4-diol, white or light yellow crystal white oblique Square crystal (light yellow after moisture absorption) Melting_point: 58°C Boiling_point 238°C, 145°C (2kPa) flash_point 152°C Refractive index 1.450 Solubility soluble in water, acidic solution, ethanol and acetone, slightly soluble in...

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Problems solved by technology

[0003] Butynediol is used in organic raw materials, solvents, cyanide-free electroplating solutions, and also in artificial leather, medicine and pesticide industries. It occupies a very important position in the national economy. Limited by factors such as bed temperature rise and catalyst efficiency factor, there are disadvantages such as low single-pass conversion rate of synthesis gas, low outlet methanol concentration, large cycle ratio and large energy consumption. The three-phase slurry bed butynediol synthesis reactor is based on Two systems of air-water-catalyst and air-liquid paraffin oil-catalyst were used as objects to study the hydrodynamic properties of the three-phase slurry bed butynediol synthesis reactor with built-in vertical tube bundle heat exchanger—average gas holdup , bed pressure drop, and critical superficial gas velocity for solids to be completely suspended. The influence of various factors on the hydrodynamic properties was investigated, and the empirical correlation formula for gas holdup was obtained

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