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Title: MPC improves reformer control

A model predictive control strategy was applied to a synthesis gas reformer of Samsung-BP Chemicals in Korea that produces carbon monoxide and hydrogen from naphtha. A strongly endothermic reaction occurs in a catalytic reformer, and reformer outlet temperature is considered to have the most significant effect on product composition. The newly developed reformer is known to be a cost-effective process operating at high reaction temperatures and low steam-to-carbon ratio, but its drawback is temperature control difficulty due to the use of offgas as a part of the fuel. Without smooth control of the reformer outlet temperature, stable operation of the downstream separation units cannot be expected. Therefore, it is a great challenge to apply a model predictive control technique for tight control of reformer outlet temperature. The paper describes model predictive control, the process advanced control project, computer system architecture, analysis of operating condition, control structure, sampling rate, and disturbance estimation.
Authors:
; ;  [1] ;  [2] ;  [3] ;  [4]
  1. Samsung Engineering, Seoul (Korea, Republic of)
  2. Samsung-BP Chemicals, Ulsan (Korea, Republic of)
  3. Korea Inst. of Science and Technology, Seoul (Korea, Republic of)
  4. Korea Univ., Seoul (Korea, Republic of)
Publication Date:
OSTI Identifier:
40349
Resource Type:
Journal Article
Resource Relation:
Journal Name: Hydrocarbon Processing; Journal Volume: 74; Journal Issue: 4; Other Information: PBD: Apr 1995
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; NAPHTHA; CATALYTIC REFORMING; CHEMICAL REACTORS; PROCESS CONTROL; TEMPERATURE CONTROL; CONTROL THEORY; COMPUTERIZED CONTROL SYSTEMS; FLOWSHEETS; RESPONSE FUNCTIONS; EXPERIMENTAL DATA