Shirota’s kinetic model and our kinetic model were used to treat thekinetic data of styrene
(St) and N-phenylmaleimide (PMI)copolymerization in which charge-transfer complex (CTC) was
formed.The results obtained by Shirota’s kinetic model were disagreed withthe experiments
and the experimental phenomena could not be explained.The kinetic data of all feed
fractions can be treated with our kineticmodel, and the experimental phenomena can be
explained from thepropagation constants and reactivityratios. Our kinetic model is also
suitable for the kinetic dataof methyl methacrylate(MMA) and PMI copolymerization in which
CTC can not be formed.

The kinetics of photodegradation of methylene blue over UV lightilluminated titania
particles in aqueous suspensions has been studied withdifferent initial methylene blue
concentrations and TiO2 particle sizes. The degradationrate increases with the decrease of
initial concentration and particlesize. A quasi-experienced model for photodegradation rate
is derivedbased mainly on the coinstantaneous effects of different initialconcentrations
and particle sizes. The mathematical relationships ofmodel parameters with initial
concentration and particle size are given.The model results of the photodegradation rate of
methylene blue arecoincident with the experimental data.

The original van Laar’s theory has been modified. The internal pressures of components
andmixture are expressed by Frank’s relation and the excess entropy for mixing of
components is alsoconsidered. A new activity coefficient equation, which can be
satisfactorily applied to polymersolutions, is obtained. The calculated results for the VLE
of 179 polymer solutions show that theaccuracy of fit is evidently superior to UNIQUAC
equation.

The solubilities of two -agonists, cimaterol and mabuterol, insupercritical carbon dioxide
(SF-CO2) were measured by arecirculating method at temperatures of 40 C and 60 C
andpressures between 9 MPa to 49 MPa. The compounds exhibit very limitedsolubilities in the
range of 10-5 to 10-7 (mole fraction).Cimaterol has a higher solubility than that of
mabuterol. Theexperimental data of solubility were correlated by four density-basedmodels.
The correlation accuracy highly depends on the systeminvestigated, which is mainly
determined by the density ranges andtemperature.

In this paper n-hexane is chosen as typical volatile in condensed mode polymerization
process,and the adsorption equilibrium of volatile in polyethylene particles is studied
through experiments at differenttempera-tures, pressures and particle diameters. It is
found that more adsorbed quantity of volatile atequilibrium can be obtained with lower
temperature, higher pressure andsmaller particle diameter. Underpolymerization conditions,
the adsorbed quantity at equilibrium is more strongly affected by temperature thanby
pressure, and if the diameter distribution of particles is very wide the effect of diameter
on the adsorbedquantity must be taken into consideration. With theoretical analyses a model
is proposed for calculating theadsorbed quantity of volatile at equilibrium.

A morphologically structured model is proposed todescribe the batch fermentation of
lovastatin according to the growthkinetics of filamentous microorganisms. Three kinds of
hyphae areconsidered in the model: actively growing hyphae, non-growing hyphae
anddeactivated hyphae. Furthermore, actively growing hyphae consist ofthree morphological
compartments: apical compartment which gives rise tohyphal tip extension; subapical
compartment which is related to hyphalbranching; and hyphal compartment which is only
responsible forsecondary metabolite formation. The kinetics of mycelial growthmechanism
issummarized and applied in modeling lovastatin fermentation. AMichaelis-Menten kinetic
model with substrate inhibition is proposed forproduct formation. As expected, the model
simulations fit well withexperimental data obtained either from a laboratory scale 10
Lfermenter or from a pilot-plant scale fermenter.

Polyvinyl alcohol (PVA)-containing desizing wastewater was treated by variouswet oxidation
methods. Parameters such as reaction temperature, initialsolution pH, and thedosage of H2O2
were investigated in terms of chemical oxygendemand (CODCr) and totalorganic carbon (TOC)
removal rate. Up to 90% of the initialCODCr was removed by wet air oxidation(WAO) at270 C
with stoichiometric oxygen supply. while at temperature of200 C, the CODCr removalrate was
found to be 80%. Similar results were obtained by PromotedWAO (PWAO) and wet peroxide
oxidation(WPO) at a lowertemperature of 150 C. Reaction temperature was found to havea
significant effect on theoxidation performance for all the methods. Initial solutionpH was
observed to play asignificant role in PWAO and WPO where H2O2 was employed.Comparison of
WAO, CWAO(catalytic wet air oxidation), PWAO and WPO shows that the rate ofCODCr removal
increases in the order: WAO, CWAO,PWAO and WPO.

Internal thermally coupled distillation columns (ITCDIC) are the frontier ofdistillation
energy saving research. In this paper, a novel energy savingmodel of ideal ITCDIC anda
simulation algorithm are presented, upon which a series of comparativestudies on energy
savingswith conventional distillation columns are carried out. Furthermore, wepresent an
optimizationmodel of ideal ITCDIC, which can be used to achieve the maximum energysaving
and find theoptimal design parameters directly. The binary system of benzene-tolueneis
adopted for theillustrative example of simulation and optimization. The results showthat
the maximum energysaving of ITCDIC is 52.25% (compared with energy consumption
ofconventional distillation underthe minimum reflux ratio operation); the optimal design
parametersare obtained, where therectifying section pressure and the feed thermal condition
arepr= 0.3006 MPa and q=0.5107 respectively.

The kinetics of camphene production in liquid phase from -pinene wasexperimentally
determined in an isothermal batch reactor. To this end, asulfated ZrO2 catalyst was used
and the reaction studied in the temperaturerange of 370---403 K. By analyzing the
experimental data, second reactionorder for -pinene was found. A kinetic model is presented
which includesterm for the catalyst load used. The specific rate constant at 393 K was2.19
10-3 mol-1-1,the activation energy being 93 kJ-1.Both values are within the range of
literature results.

The reactive precipitation process of procaine benzylpenicillin is reviewed, while
suchsecondary processes as ageing, agglomeration, breakage, and the effects of
operationparameters oncrystal size are emphasized. In the reactive precipitation the ageing
of particles has a little effectonthe process, while the greater effect comes fromthe
agglomeration and breakage of particles, furthermore, the mixinghas also notable influence
on the product size. All of these providethe bases for further study onreactive
precipitation.

In the paper, an estimating method for critical properties in group-contributionmethod is
presented. For eliminating the influence of adjacent group anddistinguishing isomers, the
new method including first-level group-contributionmethod and second-level group-
contribution method is proposed. The new methoddemonstrates significant improvement in
accuracy.