Link to the University of Pittsburgh Homepage
Link to the University Library System Homepage Link to the Contact Us Form

Process Intensification via Batch-to-Continuous Transition: Acquisition of Robust Reaction Kinetics for the Production of Dispersants

Zhen, Zibo (2020) Process Intensification via Batch-to-Continuous Transition: Acquisition of Robust Reaction Kinetics for the Production of Dispersants. Master's Thesis, University of Pittsburgh. (Unpublished)

This is the latest version of this item.

[img] PDF (Final Version)
Submitted Version
Restricted to University of Pittsburgh users only until 28 January 2022.

Download (1MB) | Request a Copy

Abstract

Transition from batch to continuous processing promises strong improvements via reduced energy demand, resource consumption, waste production, and physical footprint of the plant — so-called “process intensification”. This transition has been already demonstrated in the pharmaceutical industry but is largely lacking to-date for the—much larger scale—specialty chemicals industry. A critical step in this transition is the acquisition of robust and accurate reaction kinetics, which are typically poorly understood (if known at all) for conventional batch processes.
In this work, a detailed kinetic investigation of the kinetics for succinimide dispersants production via amination of polymeric anhydrides was conducted in a small laboratory-scale batch reactor using online IR spectroscopy as the analytical tool. The use of a small batch system enables the acquisition of large amounts of data through measurement of long concentration time traces, thus facilitating the acquisition of robust kinetics. MATLAB was used to fit the experimental data and deduce robust reaction kinetics. We found that the reaction kinetics could be described by a two-step mechanism, and that the kinetics of each reaction step could be determined separately in different temperature windows. In this way, we were able to obtain the first robust reaction kinetics for this reaction system. This work can be further applied to simulate the kinetics for a family of related lubricant chemistries by varying feed and operating conditions (temperature, feed ratio, etc.) and thus provides a strong support for the design of a continuous processing system.


Share

Citation/Export:
Social Networking:
Share |

Details

Item Type: University of Pittsburgh ETD
Status: Unpublished
Creators/Authors:
CreatorsEmailPitt UsernameORCID
Zhen, ZiboZIZ37@pitt.eduZIZ370000-0002-8231-6775
ETD Committee:
TitleMemberEmail AddressPitt UsernameORCID
Committee ChairVeser, Götzgveser@pitt.edugveser0000-0002-2084-4636
Committee MemberEnick, Robertrme@pitt.edurme0000-0003-1801-8033
Committee MemberLi, Leilel55@pitt.edulel550000-0002-8679-9575
Thesis AdvisorVeser, Götzgveser@pitt.edugveser0000-0002-2084-4636
Date: 28 January 2020
Date Type: Publication
Defense Date: 7 November 2019
Approval Date: 28 January 2020
Submission Date: 19 November 2019
Access Restriction: 2 year -- Restrict access to University of Pittsburgh for a period of 2 years.
Number of Pages: 39
Institution: University of Pittsburgh
Schools and Programs: Swanson School of Engineering > Chemical Engineering
Degree: MS - Master of Science
Thesis Type: Master's Thesis
Refereed: Yes
Uncontrolled Keywords: Process Intensification, Kinetics, Dispersant
Date Deposited: 28 Jan 2020 16:58
Last Modified: 28 Jan 2020 16:58
URI: http://d-scholarship.pitt.edu/id/eprint/37832

Available Versions of this Item

  • Process Intensification via Batch-to-Continuous Transition: Acquisition of Robust Reaction Kinetics for the Production of Dispersants. (deposited 28 Jan 2020 16:58) [Currently Displayed]

Metrics

Monthly Views for the past 3 years

Plum Analytics


Actions (login required)

View Item View Item