Aimed at the designed problem of refinery device of TDI(Toluene diisocyanate),and based on process simulation and hydrodynamic calculation,the novel tower internals and high efficiency structured packing were chosen for retrofitting once again in the device mentioned above.

Study on performance of new high-efficiency structured packing;

Performance characteristics of a new high efficiency structured packing material;

A hybrid simulation model for multicomponent distillation in structured packing column;

It describes the charactoristic and performance of regular packing,selection of liquid distributor and the setting of redistributor.

New technologies such as regular packing,pan-through liquid gas distributor,feeding distributor,etc.

This paper analyses the reasons for the working medium carrying K2CO3 in the process of hydrogen peroxide production, offers the relative solution, and presents the regular packing used in the production.

Desulfurization by tannin extract is described in terms of its principle,process flow and use of structured packings in desulfurization column.

This paper introduces the generalized pressure drop correlation charts which can be used to calculate and analyse the structured packed column,and compares with the traditional design and calculation methods of structured packed column respecting CY wire mesh structured packing