Zobrazeno 1 - 10
of 127
pro vyhledávání: '"W. Harmon Ray"'
Autor:
Manuel Z. Solorzano, W. Harmon Ray
Publikováno v:
Industrial & Engineering Chemistry Research. 47:9025-9039
This work characterizes the dynamic behavior of reactors with evaporative cooling. The process under consideration is a continuous stirred tank reactor used to carry out an exothermic irreversible first-order reaction with heat removal through the wa
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2019bbc6ea430ff6b724eddc179ed639
https://doi.org/10.1021/ie800044b
https://doi.org/10.1021/ie800044b
Autor:
W. Harmon Ray, Dennis P. Lo
Publikováno v:
Industrial & Engineering Chemistry Research. 45:993-1008
Dynamic simulations of grade transitions are conducted for an industrial fluidized bed polyethylene reactor using a nickel−diimine catalyst. The reactor process model incorporates a kinetic model that predicts polymer properties for nickel−diimin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e6b706645674fde1c18bc5e43558346c
https://doi.org/10.1021/ie0580598
https://doi.org/10.1021/ie0580598
Autor:
Gary J. Wells, W. Harmon Ray
Publikováno v:
AIChE Journal. 51:3205-3218
Imperfect initiator mixing greatly affects the stability and efficiency of low density polyethylene (LDPE) autoclave reactors. A combined simulation technique utilizing compartment models and computational fluid dynamics extends previous work in the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d4bdf91f82dfd42594e55ca52e61bb63
https://doi.org/10.1002/aic.10544
https://doi.org/10.1002/aic.10544
Autor:
Gary J. Wells, W. Harmon Ray
Publikováno v:
Macromolecular Materials and Engineering. 290:319-346
Summary: A new analysis tool is presented that uses the governing kinetic scheme to predict properties of low-density polyethylene (LDPE) such as the detailed shape of the molecular weight distribution (MWD). A model that captures mixing details of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0468bf727115b774e02ca9aea2e47727
https://doi.org/10.1002/mame.200400128
https://doi.org/10.1002/mame.200400128
Autor:
W. Harmon Ray, Dennis P. Lo
Publikováno v:
Industrial & Engineering Chemistry Research. 44:5932-5949
A kinetic model is developed for predicting the polymerization rate, chain-branching characteristics, and molecular weight from ethylene polymerization over homogeneous and supported nickel diimine catalysts. Seven dimensionless parameter groups are
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1ca445e26f118472d683e99adf90eff0
https://doi.org/10.1021/ie040197u
https://doi.org/10.1021/ie040197u
Autor:
Gary J. Wells, W. Harmon Ray
Publikováno v:
AIChE Journal. 51:1508-1520
A powerful new modeling technique is presented for exploring mixing effects in reactive flow systems. The technique combines the detailed mixing representation of computational fluid dynamics (CFD) simulations with the simplicity and computational ef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a1d4e8bcc462896abe8f0683e26e79c0
https://doi.org/10.1002/aic.10407
https://doi.org/10.1002/aic.10407
Autor:
Dennis P. Lo, Tomy Widya, Juan J. de Pablo, W. Harmon Ray, Brian J. Banaszak, Antonin Novak, Juraj Kosek
Publikováno v:
Macromolecules. 37:9139-9150
A detailed study has been conducted of the sorption of ethylene and 1-hexene in linear low density polyethylene (LLDPE) under typical gas phase LLDPE reactor conditions. The recently proposed osmotic ensemble hyperparallel tempering method is used to
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e886a7926e50403f4fd0a5cbb6fcbe00
https://doi.org/10.1021/ma0491107
https://doi.org/10.1021/ma0491107
Publikováno v:
Macromolecular Symposia. 206:1-14
In this short review we describe some of the main developments of polymer reaction engineering since the early days of polymer science in the 1930's to the current challenges of today.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::da62213cdd2fc0462c30e02cd8e6a9c4
https://doi.org/10.1002/masy.200450201
https://doi.org/10.1002/masy.200450201
Autor:
Min Zhang, W. Harmon Ray
Publikováno v:
Journal of Applied Polymer Science. 86:1630-1662
A comprehensive mathematical model is developed for “living” free-radical polymerization carried out in tank reactors and provides a tool for the study of process development and design issues. The model is validated using experimental data for n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7d1c1644aceefdbd628992274a5f0676
https://doi.org/10.1002/app.11051
https://doi.org/10.1002/app.11051
Autor:
W. Harmon Ray, Min Zhang
Publikováno v:
Journal of Applied Polymer Science. 86:1047-1056
A tubular reactor model for living free-radical polymerization is developed in this study. The model may be used as a tool to design efficient processes for tailored polymers from living free-radical polymerization. Examples presented include prepari
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::c57873f277958b512e2b2bafa5443f50
https://doi.org/10.1002/app.11052
https://doi.org/10.1002/app.11052