Test stand for parallel testing of catalysts under different flow conditions, has restrictors exhibit same flow resistance in one of reaction vessel subgroups and different flow resistance between reaction vessel subgroups

摘要

The stand has two parallely arranged reaction vessel subgroups, where each subgroup has parallely arranged reaction vessels (101-110) comprising inlet pipes and discharge pipes. The inlet pipes have capillary restrictors (220-229) at each reaction vessel. The restrictors have a same flow resistance in one of the subgroups and a different flow resistance between the subgroups. One of the restrictors stays in thermal and/or physical contact with a heating and/or cooling unit. The restrictors are made from a ceramic material, glass or fused silica and/or fused quartz.