39results about How to "Increase the gas-liquid contact area" patented technology

A method is used to remove an unreacted alcohol from an ester product mixture by a gas stripping. The method involves the feeding of the ester product mixture into proximity of an axis of a rotating packed bed, so as to enable the ester product mixture to flow radially to come in contact with a gas which is introduced into the rotating packed bed. The unreacted alcohol and any other volatile component of low molecular weight are thus stripped from the ester product mixture by the gas entrainment, thereby resulting in production of a purified ester product which is collected at the bottom of the rotating packed bed. The unreacted alcohol and the volatile component, which are entrained in the gas, are discharged via an exit located at the top of the rotating packed bed.

The invention discloses a filler sheet. The filler sheet comprises a strength support layer and is characterized by further comprising a hydrophilic layer which is compounded on the surface of the strength support layer. The filler sheet has the advantages of high uniform distributivity of liquid on the surface of a filler, larger gas-liquid contact area and improvement on mass transfer efficiency due to the hydrophilic layer on the surface of the filler sheet. The invention also discloses the filler made of the filler sheet.

The invention relates to a flow guide filler which is formed by stacking a plurality of layers of filler sheets, wherein two symmetrically-reversed curves are arranged in the middle parts of corrugated ridges of the filler sheets; the upper and lower ends of the corrugated ridges are straight lines; the two curves are tangent to each other; the curves at the upper end are tangent to the straight lines at the upper part; the curves at the lower end are tangent to the straight lines at the lower part; a height ratio of the curve parts of the corrugated ridges of the filler sheets to the straight line parts is 0.5-5; a series of rectangular, triangular and arc-shaped boss flow guide holes are punched in the filler sheets; the area of the boss flow guide holes punched in the filler sheets is 5-30% of the area of the filler sheets; regular diamond particles are adopted on the surfaces of the filler sheets, and vibrate and scour regularly in a liquid flow direction to perform surface roughening treatment; the filler is filled through combined filler discs with different inclination angles. The filler is good in surface film forming effect, so that an effective specific surface area is increased; gas-liquid phase perturbation is enhanced; meanwhile, a liquid surface updating rate is increased, so that gas-liquid mass transfer is full; mass transfer efficiency is greatly improved; the filler can be widely used in fields of petroleum, chemical industry, biology, pharmacy and environmental protection, and the like.

The invention discloses a preparation method of high-grade 4-tert-butylbenzaldehyde and a preparation apparatus of high-grade 4-tert-butylbenzaldehyde. The preparation method of high-grade 4-tert-butylbenzaldehyde comprises the following steps: A) 4-tert-butylbenzaldehyde, water and a catalyst without halogen are mixed in a micrometer bubble reactor for carrying out an oxidation reaction, in order to obtain reaction feed liquid; B) oil-water separation is carried out for reaction feed liquid in order to obtain water phase and oil phase, water phase contains the catalyst, and the oil phase contains 4-tert-butylbenzaldehyde and impurities; and C) 4-tert-butylbenzaldehyde and the impurities are separated in order to obtain high-grade 4-tert-butylbenzaldehyde. 4-tert-butylbenzaldehyde prepared by the preparation method of high-grade 4-tert-butylbenzaldehyde according to an embodiment does not contain halogen, and can be applied to the fields of foodstuff, medicine, perfume and the like.

The invention discloses a novel oxygenized air distributor for a desulfurizing tower. Aerator pipes are parallelly and uniformly arranged on a bracket, one ends of the aerator pipes are fixedly connected with an air inlet main pipe, and the other ends of the aerator pipes are closed. The aerator pipe comprises a frame pipe and a distributor pipe, the frame pipe is arranged inside the aerator pipe, a vent hole is formed at the lower part of the frame pipe, the distributor pipe is arranged outside the frame pipe, and aeration holes are uniformly arranged just over the distributor pipe; a regulating device is arranged on a support bar of the bracket, support regulating holes are uniformly formed in the support bar of the bracket, two regulating plates are symmetrically arranged, and regulating holes are uniformly formed in the regulating plates. The novel oxygenized air distributor for the desulfurizing tower, disclosed by the invention, greatly increases the gas-liquid contacting area between oxygenized air and desulfurizing liquid, improves the desulfurization efficiency of SO2 and effectively overcomes the defect of blockage of the novel oxygenized air distributor.