| 摘要 |
A process for reducing the content of oxygen-containing and/or nitrogen-containing compounds in streams having an isobutene content of at least 10% by weight, which comprises passing the stream in the liquid state at a temperature T [in K] and a linear velocity v [in cm/min] over a fixed bed of an acid-free zeolite having a mean pore size of from 0.3 to 1.5 nm, where the fixed bed has a length l [in cm] in the flow direction of the stream and T, v and l obey the relationship <?in-line-formulae description="In-line Formulae" end="lead"?>2<SUP>(T-283 K)/10 K</SUP>.l/v<=500 min,<?in-line-formulae description="In-line Formulae" end="tail"?> is described. The process avoids the formation of isobutene oligomers.
|
