East China University of Science and Technology

Sichuan University

Shanghai Huachang Environmental Protection Co., Ltd.

Luoyang Petrochemical Engineering Corporation (lpec) Sinopec

Zhishan Bai

Hualin Wang

Qiang Yang

Yanhong Zhang

Ji Ma

Jie Zhang

Yan Mei Zhang

Yi Liu

Lei Shi

Ping Zhou

Wei Yuan

Yu Liu

Xia Jiang

Pengbo Fu

Yang Qiu

Zhuoqun Qian

Yuan Huang

Qisong Shen

Yuxiao Sun

Xiaoyong Yang

Huiqing Yu

Haiyang Bai

Dun Wang

Jiandong Hu

Bichuan Yu

Jianqi Chen

Fuwei Lv

Xiao Dong

Longhu Liang

Fengqin He

Zhaojin Lu

Huiqing Luo

An oily sewage pretreatment method without air flotation, comprising the following steps: (a) sedimentation separation: performing sedimentation separation on oily sewage to implement preliminary separation of oil, sludge, and water; (b) boiling bed separation: performing boiling bed separation on the oily sewage obtained by the preliminary separation to further remove dispersed oil, sludge, and sand from the oily sewage; (c) shape coalescence separation: performing shape coalescence separation on the oily sewage obtained by the boiling bed separation in step (b) to implement demulsification, coalescence, and separation of emulsified oil; and (d) biochemical treatment: the effluent obtained in step (c) directly enters an AOH biochemical system, an air flotation unit is omitted. Also disclosed is an oily sewage pretreatment apparatus without air flotation.

Oily sewage pretreatment method and device without air floatation

The present disclosure relates to a gas cooling-scrubbing apparatus and an associated method. There is provided a gas cooling-scrubbing apparatus, comprising: a cyclone jet scrubbing unit, a spray scrubbing unit, a filtering spray unit, and a coalescing dehydration unit, wherein the cyclone jet scrubbing unit comprises a cyclone jet scrubbing monopipe (), a cyclone jet cooling water pipe (), a cyclone jet pipe plate () and a cyclone jet overflow pipe (); wherein the spray scrubbing unit comprises a spray filtering pipe (), a spray pipe plate (), a spray overflow pipe (), a scrubbing nozzle () and a scrubbing nozzle water pipe (); wherein the filtering spray unit comprises a filtering bed (), a spray head () and a spray water pipe (); and wherein the coalescing dehydration unit comprises a coalescing bed (). There is also provided a gas cooling-scrubbing method.

Gas cooling-scrubbing apparatus and method

The present disclosure relates to a method and an apparatus for self-heat-extracting flash evaporation of a sulfuric acid alkylation reaction product. There is provided a method for self-heat-extracting flash evaporation of a sulfuric acid alkylation reaction product. One step is to coalesce and vaporize a preliminarily distributed sulfuric acid alkylation reaction product to cause preliminary vaporization of a hydrocarbon therein, thereby taking heat away and preliminarily separating the hydrocarbon from sulfuric acid. Another step is to subject the preliminarily separated alkylation reaction to reinforced separation, where the hydrocarbon is further vaporized to take heat away and further separate the hydrocarbon from the sulfuric acid. There is also provided an apparatus for self-heat-extracting flash evaporation of a sulfuric acid alkylation reaction product.

Method and apparatus for self-heat-extracting flash evaporation of sulfuric acid alkylation reaction product

The disclosure provides a short-process separation system for separating ionic liquid from alkylation reaction effluent, comprising an alkylation reactor, an ionic liquid storage tank, a primary coalescence separator, a secondary coalescence separator, a flash tank, a low-temperature fine coalescence separator and a fractionating tower that are linked in order. The inlet of the ionic liquid storage tank communicates with the bottom flow ports of the primary coalescence separator, the secondary coalescence separator and the low-temperature fine coalescence separator through delivery lines, and the outlet of the ionic liquid storage tank communicates with the return port of the alkylation reactor through a delivery pump. The alkylated oil collected from this system has a high degree of cleanliness, and can be used directly as a component for formulating clean gasoline. The ionic liquid catalyst collected therefrom may be directly returned to the alkylation reactor for cycle use.

Short-process separation system for separating ionic liquid from alkylation reaction effluent

A method and a device for synchronous high-speed photographing of microparticle rotation in a liquid cyclone field and for determining the rotation velocity of a microparticle in a liquid cyclone field by using a combination of a synchronous high-speed photographing system and a transparent microparticle containing two centrosymmetrically arranged inner cores having the same diameter. The method comprises: using a transparent microparticle comprising two inner cores having the same diameter and arranged centrosymmetrically as a rotation test particle; acquiring synchronously two groups of two dimensional image series of microparticle motion in a liquid cyclone field using two orthogonally arranged high-speed digital cameras; and reconstructing a three dimensional motion trajectory of the microparticle from the two groups of synchronous image series, and determining a rotation velocity of the microparticle in the cyclone field at the same time.

Synchronous high-speed photographing method and device for microparticle rotation in liquid cyclone field

A process and an apparatus for separating and recovering waste alkali from a cyclohexane oxidation solution are provided. A gradient combination of the gravity separation technique, the vortex separation technique and the coalescence separation technique is used to carry out fine separation of the waste alkali liquor from the cyclohexane oxidation solution. The purified cyclohexane oxidation solution is fed into a down-stream apparatus. Most of the waste alkali liquor thus separated is recycled, while the remaining is expelled. The expelled waste alkali liquor is incinerated in an incinerator, followed by recovering the molten species using a pneumatic pulverization process.

Process and apparatus for separating and recovering waste alkali from cyclohexane oxidation solution

The invention provides a method for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation, comprising: removing the entrapped catalyst particles from the MTO quench water via mini-hydrocyclone separation; cooling the quench water purified by mini-hydrocyclone separation so as to effect the recycling of water; removing the entrapped catalyst particles from the MTO quench water to be stripped via mini-hydrocyclone separation, so as to reduce the deposition of the catalyst particles within the stripping tower; removing the entrapped catalyst particles from the MTO scrubbing water via mini-hydrocyclone separation; and cooling the scrubbing water purified via mini-hydrocyclone separation so as to effect the recycling of water. The invention also provides an apparatus for purifying MTO quench water and scrubbing water via mini-hydrocyclone separation.

Method for purifying quench water and scrubbing water from MTO by mini-hydrocyclone and apparatus used for same

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Shanghai, China

Zhishan Bai