Determination of polybutylene terephthalate polycondensation equilibrium constant using a batch reactor

Fast screening of polycondensation catalyst, Determination of the kinetic data of catalyzed polycondensation in polyethylene terephthalate synthesis

Differential scanning calorimetry (DSC) belongs to the family of thermal analysis methods. In general thermal analysis is the determination of substance properties in dependence on temperature. Thermodynamic data (heat capacity, phase transition, enthalpy) and kinetic data can be determined by methods of thermal analysis. The greatest advantage of thermal analysis is the easy handling and the o...

Determination of the hydrolysis constant using Anaerobic Batch Tests

Hydrolysis is the rate limiting step for particulate/solid substrates under anaerobic digestion. The first order kinetic model is commonly applied to describe this step and it can be determined by anaerobic batch test. In this paper we assess three issues with respect to defining the hydrolysis rate constant; source of inoculum, influence of substrate to inoculum ratio and the pre-incubation ti...

A Control System for A Pilot Batch Polymerization Reactor

In this article several control schemes for a pilot scale polymerization reactor are proposed and one of them is selected as the most suitable design. The performances of proposed schemes have been compared through computer simulations. The controllers are PID and Chosen reaction is polymerization of methyl methacrylate which is highly exothermic.

Fluoride removal by using a batch electrocoagulation reactor

Sequencing Batch Reactor Systems

The sequencing batch reactor (SBR) process is a sequential suspended growth (activated sludge) process in which all major steps occur in the same tank in sequential order (figure 1). There are two major classifications of SBRs: the intermittent flow (IF) or “true batch reactor,” which employs all the steps in figure 1, and the continuous flow (CF) system, which does not follow these steps. Both...