| abstract |
A reformer tube is provided for producing synthesis gas by steam reforming of a hydrocarbon-containing gaseous feedstock using a structured flow conversion catalyst. According to the present invention, a heat exchange tube is placed inside the structured catalyst, where the feed gas stream first flows through the structured catalyst and then flows countercurrently through the heat exchange tube. This improves heat transfer between the synthesis gas product stream and the structured catalyst and the feed gas stream flowing through it, especially in the radial direction. |