Wanhua Chemical Group Co., Ltd.

Wanhua Chemical (ningbo) Co., Ltd.

Zaigang Yang

Yuan Li

Peng Liu

Qingmei Jiang

Hao Chen

Changsheng Chen

Hui Wang

Congying Zhang

Jinhong Song

Hengdong Yang

Zhongying Chen

Jianglin Hu

Yunhai Liu

Wei Zeng

Ke Ding

Wuxi Luo

Xiaofei Qiao

Bingbo Hu

Zilin Ni

Jianmao Guo

Yifeng Chen

Mingyan Song

Shanjian Cao

Jun Qu

Changhao Ke

Jingkui Wang

Haibing Jia

Nan Zhao

Junxian Liu

Dewei Yu

Yuanye Bao

Jinke Jiang

Tianyong Yu

Yan Song

Hua Mei

Changbao Xu

The apparatus includes one or more cylindrical housings connected to one another, a jacket on an outer side of a housing, an inner cylinder disposed at least in an interior of a first cylindrical housing, a heat insulation gasket, inner members, a corrosive high temperature gas inlet disposed on the heat insulation gasket, a gas and liquid phase outlet disposed at a bottom of the housing or a bottom of a last housing and a coolant inlet and outlet connected to an interior of the jacket. The heat insulation gasket seals the first cylindrical housing and a top of the inner cylinder in the interior of the first cylindrical housing. The inner members are distributed along a wall of the housing, communicate an interior of the jacket with an interior of the housing, and distribute a liquid in the interior of the jacket to the interior of the housing.

Apparatus and method for rapid cooling of high temperature gas

Disclosed is a method for preparing &#x3b2;-phenylethanol. The method comprises the following steps: (1) reducing a catalyst in a reactor in advance; (2) introducing pre-heated hydrogen gas to warm the reactor to a predetermined temperature; and (3) introducing a raw material styrene oxide to perform a hydrogenation reaction so as to obtain the &#x3b2;-phenylethanol. The catalyst is Ni&#x2014;Cu/AlOnanosized self-assembled catalyst. The reactor is an ultrasonic field micro-packed bed reactor. The method of the present invention enables the selectivity of the &#x3b2;-phenylethanol to reach 99% or more.

Reaction system, catalyst and method for preparing &#x3b2;-phenylethanol

The present invention relates to a catalyst for fixed bed aniline rectification residue recycling and preparation method thereof. Based on the total weight of the catalyst, the catalyst comprises the following components in percentage by weight: 5-40% of an active component, 2-30% of a first cocatalyst component, 10-30% of a second cocatalyst component and the balance of carrier, wherein the active component is NiO; the first cocatalyst component is one or more of Fe, Mo, Cr or Co oxide; and the second cocatalyst component is one or more of La, Zr, Y or Ce oxide. The catalyst is prepared through co-precipitation. The catalyst shows high activity and stability in the waste liquid treatment process, and can still maintain high rectification residue cracking rate after reaction of 200 hours.

Catalyst for fixed bed aniline rectification residue recycling and preparation method

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Shandong, China

Zaigang Yang