Elf-SRTI process

Operating Conditions other Data ELF-SRTI Process... 

The Socidtd Nationale Elf Aquitaine and Socidte de Recherches Techniques et Industrielles (SRTI) have announced a process for separating mixtures difficult to separate by distillation. Hydrogen is used as the carrier gas. The Elf-SRTI process is presently commercially separating 1(X) metric tons/year of perfume ingredients. Elf Aquitaine has also announced a demonstration unit for separating 100,000 metric tons/year of C4-C1Q normal and isoparaffins. Several beds in parallel are used to effect a constant product flow. 

Elf-SRTI An industrial chromatographic process developed by Elf Aquitane Development and the Societe de Recherches Techniques et Industrielles. Multiple beds are used. Used for separating perfume ingredients and proposed for separating aliphatic hydrocarbons. 

Both Abcor and Elf-SRTF have developed gas chromatographic processes for the separation of a and ji pinenes. The processes, which are similar in general principle and differ mainly in the methods used to pack the column, are compared in Table 10.1. By improvements in column-packing technology Elf-SRTI were able to eliminate baffles and still achieve a reasonably low HETP in a production scale column. (// 1.0 mm for a 40 cm. diameter column.) However, even in the largest of these units throughput is only about... 

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