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Method for controlling the operation of a cryogenic rectification plant

국가/구분 United States(US) Patent 등록
국제특허분류(IPC7판) P25J-003/00    G05B-021/00    G05D-013/02    G05E-001/00   
미국특허분류(USC) 062/656; 062/657; 700/270; 700/273; 706/023
출원번호 US-0310020 (2002-12-05)
발명자 / 주소
출원인 / 주소
대리인 / 주소
    Ktorides, Stanley
인용정보 피인용 횟수 : 5  인용 특허 : 15
초록

A method for controlling the operation of a plant such as a cryogenic rectification plant wherein process parameters are quantitatively determined and then are qualitatively categorized to establish by reference to a rule set the general adjustment required for a plant element prior to determining the numerical adjustment for that element.

대표
청구항
▼

1. A method for controlling the operation of a plant comprising: (A) determining the value of a plant process parameter, comparing the determined value to the desired value for that parameter, calculating the difference between the determined value and the desired value, and calculating the rate of change of said difference between the determined value and the desired value; (B) qualitatively categorizing the said difference between the determined value and the desired value, and qualitatively categorizing the said rate of change of said difference b...

이 특허에 인용된 특허 (15)

  1. Smith ; IV Oliver Jacob ; Cronauer Stephen Andrew. Argon production control through argon inventory manipulation. USP2000106138474.
  2. Arima Hidetoshi (Gunma JPX) Enomoto Eiichi (Saitama JPX) Furukawa Masahiro (Gunma JPX) Yoshii Kazuhiro (Gunma JPX) Oonou Masayuki (Gunma JPX) Kaneko Toshiyuki (Ota JPX) Ogawa Atsushi (Hirakata JPX) M. Control device for absorption refrigerator. USP1992105156013.
  3. Greter Lucien,FRX ; Venet Fran.cedilla.ois,FRX. Cryogenic air separation process and apparatus. USP1999125996373.
  4. Bonaquist Dante P. (Grand Island NY). Cryogenic rectification system capacity control method. USP1995045406800.
  5. Inoue Haruki (Katsuta JPX) Funabashi Motohisa (Sagamihara JPX) Yahiro Masakazu (Hitachi JPX) Satoh Yoshiyuki (Hitachi JPX). Method and system for process control with complex inference mechanism using qualitative and quantitative reasoning. USP1994125377308.
  6. Takizawa Michiaki (Nagano JPX) Shiozawa Fumio (Nagano JPX) Magario Takashi (Nagano JPX) Takeuchi Makoto (Nagano JPX) Hoshina Masatake (Nagano JPX) Yamazaki Minoru (Nagano JPX) Kato Toshimi (Nagano JP. Method of setting molding conditions for an injection molding machine. USP1996055518671.
  7. Cheng George Shu-Xing. Model-free adaptive process control. USP2000046055524.
  8. Kohn Wolf ; Nerode Anil. Multiple-agent hybrid control architecture for intelligent real-time control of distributed nonlinear processes. USP1999105963447.
  9. Espie David Miller. Nitrogen purity control in the air separation unit of an IGCC power generation system. USP1999126006546.
  10. Darredeau Bernard (Sartrouville FRX) Lehman Jean-Yves (Maisons-Alfort FRX) Peyron Jean-Marc (Creteil FRX). Process and installation for the separation of air. USP1997095666825.
  11. Inoue Haruki (Katsuta JPX) Funabashi Motohisa (Sagamihara JPX) Yahiro Masakazu (Hitachi JPX) Tanaka Fumiki (Ebetsu JPX). Process control method and control system. USP1991065025499.
  12. Darredeau Bernard (Sartrouville FRX) Peyron Jean-Marc (Creteil FRX). Process for restarting an auxilliary column for argon/oxygen separation by distillation and corresponding installation. USP1996045505051.
  13. Billingham John Fredric ; Bonaquist Dante Patrick ; Dray James Robert ; Lockett Michael James ; Beddome Robert Arthur. Rapid restart system for cryogenic air separation plant. USP2001086272884.
  14. Smith ; IV Oliver Jacob ; Espie David Miller. Recirculation of argon sidearm column for fast response. USP2000066070433.
  15. Sergei V. Ulyanov IT. System for intelligent control based on soft computing. USP2002076415272.

이 특허를 인용한 특허 피인용횟수: 5

  1. Esposito,William Randy; Megan,Lawrence. Method of controlling liquid production utilizing an expert system controller. USP2007077249470.
  2. Esposito,William Randy; Megan,Lawrence. Method of controlling liquid production utilizing an expert system controller. USP2008117448230.
  3. Schachtely, Alan Thomas; Grant, John Wesley; Gomer, Richard Lewis; Kelly, Bradley Ted; Knodle, Chad Eric; Pfrehm, Patrick Louis; Schmid, James Joseph. Methods and systems for monitoring and diagnosing machinery. USP2010117831704.
  4. McCormick, Daniel Keir; McQuade, William Fred. Two-zone fuzzy logic liquid level control. USP2009117621141.
  5. McCormick, Daniel Keir; McQuade, William Fred. Two-zone fuzzy logic liquid level control. USP2010087784295.

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