| 摘要 |
<p>A process for catalytically reacting a fluid reactant mixture in a multi-tubular reactor system to form a fluid product, whereby the reactant mixture is led through at least one reactor tube (20) containing a fixed bed of solid particulate catalyst and surrounded by a heat-exchange fluid, and whereby an upstream portion of the reactor tube is dedicated to pre-heating the reactant mixture and/or a downstream portion of the reactor tube is dedicated to post-cooling the product, characterised in that the upstream portion and/or downstream portion of the reactor tube (20) contains a heat-exchanging essentially rod-shaped insert (50), the insert having a length of from 1 to 20%, preferably 1 to 50%, of the total length of the reactor tube.</p> |
