Successive linear programming at Exxon
Article Abstract:
Since 1965, successive linear programming has enjoyed several applications in the oil refinery industry. Recent research performed by Exxon Corp. has addressed the application of nonlinear occurrences as 'mostly linear' phenomena, which should be modeled using mostly linear models. Certain nonlinearities in the refining and petrochemical industries are identified and discussed from the standpoint of applying the Exxon mostly linear models to these occurrences. A multiplicative formulation for linearized problems representing actually nonlinear occurrences is proposed, and a successive linear programming model is developed whose algorithms are then applied to trust regions.
Publication Name: Management Science
Subject: Business, general
ISSN: 0025-1909
Year: 1985
User Contributions:
Comment about this article or add new information about this topic:
Successive Linear Programming at Exxon
Article Abstract:
Successive Linear Programming (SLP) has been used extensively in the refining and petrochemical industries for over 20 years. This paper concentrates on some recent work at Exxon to unify the treatment of nonlinear terms in 'mostly linear' models. We first discuss the source of nonlinearities in refining and petrochemical problems and propose multiplicative formulation for the linearized subproblems to be solved by SLP. We then describe a SLP algorithm which is shown to be related to the concept of trust regions. Finally, we present an example formulation and computational results for a series of large industrial applications. (Reprinted by Permission of Publisher.)
Publication Name: Management Science
Subject: Business, general
ISSN: 0025-1909
Year: 1985
User Contributions:
Comment about this article or add new information about this topic:
Extending planning languages to include optimization capabilities
Article Abstract:
The use of spreadsheets and planning languages has become very popular. For large computer systems, the System W, IFPS, and FCS-EPS are highly used; but for personal computers, 1-2-3 and Multiplan are most popular. Presently, these languages function mostly as simulators for examining certain cases. A technique is evaluated that can be used in the design of the optimal capability for such languages.
Publication Name: Management Science
Subject: Business, general
ISSN: 0025-1909
Year: 1986
User Contributions:
Comment about this article or add new information about this topic:
- Abstracts: Believing is seeing: joint ventures and organization learning. Learning through joint ventures: a framework of knowledge acquisition
- Abstracts: Gainsharing and mutual monitoring: a combined agency-organizational justice interpretation. Ramping up the organizational learning curve: Assessing the impact of deliberate learning on organizational performance under gainsharing
- Abstracts: Multi-level production and distribution planning with transportation fleet optimization. Strong formulations for multi-item capacitated lot sizing
- Abstracts: The risk in-basket. Ex-dividend stock price behavior and arbitrage opportunities. Jump risks and the intertemporal capital asset pricing model
- Abstracts: An interactive branch-and-bound algorithm for multiple criteria optimization. Inferring preferences in multiple criteria decision analysis using a logistic regression model