China Petroleum Chemical Corporation

Sinopec Dalian Research Institute of Petroleum and Petrochemicals Co., Ltd.

Dalian Research Institute of Petroleum and Petrochemicals, Sinopec Corp.

Ping Jin

Xiuna Yang

Haibo Wang

Kai Qiao

Feng Zhou

Shumei Zhang

Huimin Qi

Zhiyu Liu

Fanfei Meng

Yong Zhou

Shaozhong Peng

Huixia Ma

Zonglin Ruan

Changjian Liao

Rui Jiang

Ping Liu

Yong Piao

Jinling Dai

A production system for insoluble sulfur includes a polymeric kettle having a first discharge port and a quench tower () having a feed port. The first discharge port is in communication with the feed port. The quench tower has a cylindrical housing, a granulation device and a shear pump. A solvent inlet and a quenching agent inlet, which are respectively used for providing a solvent and a quenching agent, are arranged on the side wall of the housing. The sulfur production method includes raising the temperature of liquid sulfur under the protection of an initiator and nitrogen to perform polymerization reaction; introducing the polymerized material into the quenching tower and sequentially carrying out granulation and quenching treatment; carrying out solvent curing and extraction integrated treatment on the quenched product; and carrying out liquid phase circulating crushing and extraction integrated treatment on the cured and extracted product.

Production system and method for insoluble sulfur

A process for producing propylene involves dehydration of isopropanol. The dehydration process includes a step of subjecting a starting material containing isopropanol to a dehydration reaction in the presence of a dehydration catalyst comprising alumina to produce a product containing propylene. The starting material has a water content of 0.1 to 10.0 wt % (relative to 100 wt % of the total mass of the starting material), and the product has a total content of C2 unsaturated impurities and C3-C4 unsaturated impurities of 80 ppm or less (relative to 100 wt % of the total mass of the product).

Preparation method and production device for propylene

A washing and desalting device includes a first shell and a plurality of filaments. The first shell has a first receiving cavity and is provided with a liquid inlet and a liquid outlet that communicate with the first receiving cavity. The plurality of the filaments is provided in the first receiving cavity, and the length direction of each of the filaments is consistent with that of the first receiving cavity. The device can be incorporated in a washing and dehydrating system.

Washing and desalting device, washing and desalting method, desalting and dehydrating system, and desalting and dehydrating method

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Liaoning, China

Ping Jin