Faculty Profiles - KAWAJIRI Yoshiaki

Papers - KAWAJIRI Yoshiaki

Division display 101 - 113 of about 113 ／ All the affair displays >>

Optimal startup operation of simulated moving bed chromatographic processes Reviewed International coauthorship

IFAC Proceedings Volumes (IFAC-PapersOnline) Vol. 9 page： 733-738 2010.12

Language：English Publishing type：Research paper (international conference proceedings)

SMB represents one of the widely established periodic adsorption processes and its periodic and nonlinear dynamics presents a significant challenge to the formulation and solution of the optimal startup issue. A multistage startup concept allowing to adjust operating conditions stage-wise is proposed. The startup problem is then formulated aiming at driving the system towards the reference cyclic steady state (CSS) in an optimum manner. A tailored decomposition algorithm is developed to tackle the resulting optimization problem and guarantee numerical tractability. The feasibility of the solution approach is demonstrated on a binary separation with nonlinear competitive isotherms. It is found that the new startup policy dramatically reduces transient time and desorbent consumption. The startup performance in terms of product concentration and purity is also evaluated quantitatively. © 2009 IFAC.

DOI： 10.3182/20100705-3-BE-2011.0056

Optimization of simulated moving bed chromatography with fractionation and feedback: Part II. Fractionation of both outlets Reviewed International coauthorship

Li Suzhou, Kawajiri Yoshiaki, Raisch Joerg, Seidel-Morgenstern Andreas

JOURNAL OF CHROMATOGRAPHY A Vol. 1217 ( 33 ) page： 5349-5357 2010.8

Optimization of simulated moving bed chromatography with fractionation and feedback: Part I. Fractionation of one outlet Reviewed International coauthorship

Li Suzhou, Kawajiri Yoshiaki, Raisch Joerg, Seidel-Morgenstern Andreas

Journal of Chromatography A Vol. 1217 ( 33 ) page： 5337 - 5348 2010.8

Interactive Multiobjective Optimization of Superstructure SMB Processes Reviewed International coauthorship

Hakanen Jussi, Kawajiri Yoshiaki, Biegler Lorenz T., Miettinen Kaisa

MULTIOBJECTIVE PROGRAMMING AND GOAL PROGRAMMING: THEORETICAL RESULTS AND PRACTICAL APPLICATIONS Vol. 618 page： 221-+ 2009

Comparison of configurations of a four-column simulated moving bed process by multi-objective optimization Reviewed

Kawajiri Yoshiaki, Biegler Lorenz T.

ADSORPTION-JOURNAL OF THE INTERNATIONAL ADSORPTION SOCIETY Vol. 14 ( 2-3 ) page： 433-442 2008.6

Large scale optimization strategies for zone configuration of simulated moving beds Invited Reviewed

Kawajiri Yoshiaki, Biegler Lorenz T.

COMPUTERS & CHEMICAL ENGINEERING Vol. 32 ( 1-2 ) page： 135-144 2008

Interactive multi-objective optimization for simulated moving bed processes Reviewed International coauthorship

Hakanen Jussi, Kawajiri Yoshiaki, Miettinen Kaisa, Biegler Lorenz T.

CONTROL AND CYBERNETICS Vol. 36 ( 2 ) page： 283-302 2007

Nonlinear programming superstructure for optimal dynamic operations of simulated moving bed processes Reviewed

Kawajiri Yoshiaki, Biegler Lorenz T.

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH Vol. 45 ( 25 ) page： 8503-8513 2006.12

Large scale nonlinear optimization for asymmetric operation and design of Simulated Moving Beds Reviewed

Kawajiri Yoshiaki, Biegler Lorenz T.

JOURNAL OF CHROMATOGRAPHY A Vol. 1133 ( 1-2 ) page： 226-240 2006.11

Large-scale optimization strategies for zone configuration of simulated moving beds Reviewed

Kawajiri Yoshiaki, Biegler Lorenz T.

16TH EUROPEAN SYMPOSIUM ON COMPUTER AIDED PROCESS ENGINEERING AND 9TH INTERNATIONAL SYMPOSIUM ON PROCESS SYSTEMS ENGINEERING Vol. 21 page： 131-136 2006

Sucrose recovery from affination syrup by chromatographic separation Invited

Naoko Suzuki, Yoshiaki Kawajiri, Nobuyuki Matsuura, Akira Suzuki, Yasuo Saito

International Sugar Journal Vol. 104 page： 221-227 2002.8

Publishing type：Research paper (other academic)

A system for the recovery of sucrose from affination syrup has been developed. The system consists of membrane filtration, softening using a spent NaCl stream, and Organo's New Simulated Moving Bed Chromatography, which is capable of separating three components. With the expected purity and recovery of sucrose with this system of 92-97% and 90-93%, respectively, this system will be a promising alternative for sugar refineries which seek improvements.

Robustness of decoupling control of cstr with uncertain dynamics

Eiji Nakanishi, Yoshiaki Kawajiri

Technology Reports of Kansai University Vol. 41 page： 89-104 1999.12

Publishing type：Research paper (bulletin of university, research institution)

The robustness of three kinds of PID decoupling control systems of CSTR with uncertain dynamics is investigated. It has been found that within 5K or 5% of concentration of setpoint change in temperature or concentration of reactant of CSTR, each control system is robust enough for there to be less than 10% modeling errors in frequency factor and heat of reaction. Among the modeling errors in kinetic parameters, that of activation energy gives the most significant effect on the robustness of a control system of CSTR. Computer simulations have shown that a PID linearizing control system is much less robust against modeling error in activation energy compared to the other two PID decoupling control systems.

Linearizing control of CSTR and its robust stabilization by H-infinity controller Reviewed

Eiji Nakanishi, Yoshiaki Kawajiri, Yoshihiro Hashimoto

Journal of Chemical Engineering of Japan Vol. 31 ( 5 ) page： 780-786 1998.2

　 PREV - NEXT 　

1
2
3
4
5
6