Simulation Sciences develops new method for predicting octane numbers.BREA, Calif.--(BUSINESS WIRE)--March 30, 1995--Simulation Sciences Inc. (SIMSCI(sm)) Thursday disclosed the development of a new method for predicting octane numbers octane number, figure of merit representing the resistance of gasoline to premature detonation when exposed to heat and pressure in the combustion chamber of an internal-combustion engine. in gasoline blends. The new methodology will be implemented as a software enhancement in the PRO/II(r) process simulation program. Previously, oil refiners predicted octane numbers using "index methods," a set of composition-specific routines that varied from producer to producer. Now, refiners can universally apply a single method that is more reliable and free of composition dependencies. "SIMSCI's new method is valuable because it provides refiners greater flexibility in making blending decisions," said Dr. John Dr. John (also Dr. John Creaux) is the stage name of Malcolm John Rebennack Jr. (born November 21, 1940), a colorful pianist, singer, and songwriter, whose music spans, and often combines, blues, boogie woogie, and rock and roll. Coon coon: see raccoon. , development manager at SIMSCI. "Now, they can reduce off-spec product while conserving their more valuable high-octane feedstock feed·stock n. Raw material required for an industrial process. Noun 1. feedstock - the raw material that is required for some industrial process raw material, staple - material suitable for manufacture or use or finishing . The new method not only predicts octane numbers more accurately, but also enables blenders to use a wider variety of feedstocks with increased confidence in the results." Dr. C was a fictional scientist from the TV series Cro. She and her companion, Mike, went to the Arctic and thawed out a mammoth, who could talk. That mammoth now tells stories of life in the stone age with his friend, Cro, and his fellow mammoths. .H. Twu, principal developer of the new method, explained, "The older methods had interaction parameters that were component specific. These were of little use in generalizing the results beyond the streams used to determine the interaction parameters. The new method uses only interactions between PONA PONA Persons of No Account PONA Paraffins, Olefins, Naphthalenes, and Aromatics PONA Pakenham Oaks Neighborhood Association (Chalmette, LA) types (Paraffins, Olefins, Naphthenes, Aromatics). These interaction parameters are generalized in the new method so user-supplied parameters are not required and the resulting method can be used for blending any gasoline streams." The new method will be implemented in the PRO/II process simulator (1) Software that enables the execution of an application written for a different computer environment. Same as emulator. (2) Software that models the interactions of hypothetical or real-world objects or business processes. , which is leased by SIMSCI to CPI (1) (Characters Per Inch) The measurement of the density of characters per inch on tape or paper. A printer's CPI button switches character pitch. (2) (Counts Per I operating companies operating company A business that engages in transactions with outsiders. , engineering and construction companies, and universities world-wide. Process engineers use PRO/II to develop better process designs, predict plant performance more accurately, and achieve more efficient and safer plant operations. "We are committed to developing technology that gives our customers a competitive edge and will continue to lead our competitors in this area," said SIMSCI President, Dr. Y.L. Wang. In 1994 SIMSCI dedicated over one-third of its resources to product and technology development, a figure significantly higher than any of its competitors. SIMSCI has developed programs to effectively model both steady-state and dynamic operations as well as batch processes. SIMSCI's programs and services address process engineering areas including design and operational analysis; on-line modeling, control, and optimization; and plant and enterprise-wide economic models. Simulation Sciences Inc. is the leading global supplier and the pioneer of computer-aided process design for the chemical process industries. With world headquarters in Brea, Calif., SIMSCI serves more than 1,000 clients at 3,500 sites in the oil and gas, chemical, and engineering and construction industries. -0- NOTE TO EDITORS: SIMSCI is a service mark and PRO/II is a registered mark of Simulation Sciences Inc. All other trademarks herein are owned by their respective companies. CONTACT: Simulation Sciences Inc, Brea, Calif. Bryce Betteridge, 714/579-0412 |
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