ypical length to diameter ratios for trickle bed reactors are in the range of 5:1113,119to 19:184

Today the main uses of hydrogen in the industry sector are toproduce ammonia (34 Mt of hydrogen demand), methanol (15 Mt)and DRI in the steel industry (5 Mt)

Replacing unabated fossil fuel-based hydrogen with low-emissionhydrogen in refining presents relatively low technical challenges as itis a like-for-like substitution rather than a fuel switch.