| 摘要 |
FIELD: chemistry. ^ SUBSTANCE: invention relates to a method of removing contaminants from a stream of synthetic wax obtained from a Fischer-Tropsch reaction. The method involves two separated steps. Formation and growth of particles which contain a contaminant. The said particles have size which is sufficient for their easy removal. The said formation and growth is stimulated by treating the said stream of wax with an aqueous fluid medium which possibly contains an acid; and removal of a certain number of particles from the stream of synthetic wax using one or more particle removal operations. The aqueous fluid medium is mixed with the stream of wax such that, water content ranges from 0.25 to 2 wt % of the weight of the stream of wax, and acid content ranges from 0.005 to 0.5 wt % of the weight of the stream of wax. Temperature of the wax mixed with the aqueous fluid medium is kept at 160C and the stream of wax with the aqueous fluid medium are kept at high temperature for at least one minute. ^ EFFECT: efficient removal of contaminants from streams of hydrocarbons. ^ 15 cl, 2 ex, 1 tbl, 1 dwg |
