Reactor operating procedures for start up of continuously operated chemical plants

J.W. Verwijs, J.W. Verwijs, P.H. Kösters, Henderikus van den Berg, K.R. Westerterp, P.G.H. Kosters

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Abstract

Rules are presented for the startup of an adiabatic tubular reactor, based on a qualitative analysis of the dynamic behavior of continuously-operated vapor- and liquid-phase processes. The relationships between the process dynamics, operating criteria, and operating constraints are investigated, since a reactor startup cannot be isolated from an entire plant startup. Composition control of the process material is critical to speed up plant startup operations and to minimize the amount of offgrade materials. The initial reactor conditions are normally critical for a successful startup. For process conditioning, a plant should have an operating mode at which the reactor can be included in a recycle loop together with its feed system and downstream process section. Experimental data of an adiabatic tubular reactor startup and thermal runaway demonstrate some operational problems when such an intermediate operating stage is missing. The derived rules are applied to an industrial, highly heat-integrated reactor section, and the resulting startup strategy is summarized in an elementary-step diagram.
Original languageUndefined
Pages (from-to)148-159
Number of pages12
JournalAIChE journal
Volume95
Issue number41
DOIs
Publication statusPublished - 1995

Keywords

  • METIS-105860
  • IR-71197

Cite this

Verwijs, J. W., Verwijs, J. W., Kösters, P. H., van den Berg, H., Westerterp, K. R., & Kosters, P. G. H. (1995). Reactor operating procedures for start up of continuously operated chemical plants. AIChE journal, 95(41), 148-159. https://doi.org/10.1002/aic.690410114
Verwijs, J.W. ; Verwijs, J.W. ; Kösters, P.H. ; van den Berg, Henderikus ; Westerterp, K.R. ; Kosters, P.G.H. / Reactor operating procedures for start up of continuously operated chemical plants. In: AIChE journal. 1995 ; Vol. 95, No. 41. pp. 148-159.
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abstract = "Rules are presented for the startup of an adiabatic tubular reactor, based on a qualitative analysis of the dynamic behavior of continuously-operated vapor- and liquid-phase processes. The relationships between the process dynamics, operating criteria, and operating constraints are investigated, since a reactor startup cannot be isolated from an entire plant startup. Composition control of the process material is critical to speed up plant startup operations and to minimize the amount of offgrade materials. The initial reactor conditions are normally critical for a successful startup. For process conditioning, a plant should have an operating mode at which the reactor can be included in a recycle loop together with its feed system and downstream process section. Experimental data of an adiabatic tubular reactor startup and thermal runaway demonstrate some operational problems when such an intermediate operating stage is missing. The derived rules are applied to an industrial, highly heat-integrated reactor section, and the resulting startup strategy is summarized in an elementary-step diagram.",
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Verwijs, JW, Verwijs, JW, Kösters, PH, van den Berg, H, Westerterp, KR & Kosters, PGH 1995, 'Reactor operating procedures for start up of continuously operated chemical plants', AIChE journal, vol. 95, no. 41, pp. 148-159. https://doi.org/10.1002/aic.690410114

Reactor operating procedures for start up of continuously operated chemical plants. / Verwijs, J.W.; Verwijs, J.W.; Kösters, P.H.; van den Berg, Henderikus; Westerterp, K.R.; Kosters, P.G.H.

In: AIChE journal, Vol. 95, No. 41, 1995, p. 148-159.

Research output: Contribution to journalArticleAcademicpeer-review

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T1 - Reactor operating procedures for start up of continuously operated chemical plants

AU - Verwijs, J.W.

AU - Verwijs, J.W.

AU - Kösters, P.H.

AU - van den Berg, Henderikus

AU - Westerterp, K.R.

AU - Kosters, P.G.H.

PY - 1995

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AB - Rules are presented for the startup of an adiabatic tubular reactor, based on a qualitative analysis of the dynamic behavior of continuously-operated vapor- and liquid-phase processes. The relationships between the process dynamics, operating criteria, and operating constraints are investigated, since a reactor startup cannot be isolated from an entire plant startup. Composition control of the process material is critical to speed up plant startup operations and to minimize the amount of offgrade materials. The initial reactor conditions are normally critical for a successful startup. For process conditioning, a plant should have an operating mode at which the reactor can be included in a recycle loop together with its feed system and downstream process section. Experimental data of an adiabatic tubular reactor startup and thermal runaway demonstrate some operational problems when such an intermediate operating stage is missing. The derived rules are applied to an industrial, highly heat-integrated reactor section, and the resulting startup strategy is summarized in an elementary-step diagram.

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