(582p) CFD Simulation about Isobutane Alkylation Catalyzed By Ionic Liquid in Cyclone Reactor

CFD simulation about isobutane
alkylation catalyzed by ionic liquid in cyclone reactor

Shuiqiang
Duan, State Key laboratory of Heavy Oil Processing, China University of
Petroleum-Beijing

Mengzijing
Chen, State Key laboratory of Heavy Oil Processing, China University of
Petroleum-Beijing

Rui Zhang, State
Key laboratory of Heavy Oil Processing, China University of Petroleum-Beijing

Xianghai
Meng, State Key laboratory of Heavy Oil Processing, China University of
Petroleum-Beijing

Haiyan Liu, State
Key laboratory of Heavy Oil Processing, China University of Petroleum-Beijing

Zhenbo Wang,
State Key laboratory of Heavy Oil Processing, China University of Petroleum-East
China

Zhichang Liu*,
State Key laboratory of Heavy Oil Processing, China University of Petroleum-Beijing

Key Words: CFD, cyclone
reactor, ionic liquid, isobutane alkylation

Cyclone reactor¹
is a new and promising device which is suitable for the fast chemical reaction
and separation for liquid-liquid system. Ionic liquid catalyzed isobutane
alkylation is one of the typical liquid-liquid reaction and the products need
separating quickly to decrease byproducts. In this study, a computational fluid
dynamics (CFD) simulation of liquid-liquid two phase flow was carried out about
cyclone reactor. The multiphase model and the turbulence model were described
by the volume of fluid model and Reynolds stress model, respectively. The vertical
velocity distribution, tangential velocity distribution, velocity vector plot and
pressure distribution were obtained according to the simulation. The locus of
zero vertical velocity (LZVV) and the representative streamline of the ionic
liquid and organic were also attained. The location and morphology of the ionic
liquid/organic interface were acquired and a pseudo-steady organic phase core
was observed after the organic phase had entered into the cyclone reactor about
0.8s.

             (a)               
     (b)                     (c)              
       (d)

Figure 1. (a)
the organic phase core at 0.8s(y=0,z/x=5); (b) the locus of zero vertical
velocity(y=0,z/x=5); (c)(d) the streamline of the organic phase and ionic
liquid(z/x=5)

Acknowledgement

Financial support was
provided by the Natural Science Foundation of China (Nos. 21425626, 21436001
and 21276275), the National Science and Technology Support Program of
China (2014BAE13B01), and the Science Foundation of China University of
Petroleum, Beijing (No. 2462015QZDX03).

References

[1] Zhenbo Wang;
Zhichang Liu; Chunming Xu; Aqiang Chen; Rui Zhang. C.N. Patent 201 410 137
641.1