Abstract
The use of hydrogen is increasing in industrial processes, and its
use is likely to increase further with its potential use as an energy
carrier. The venting of hydrogen is inevitable at some time for almost
all uses, and its propensity to ignite makes it essential that safe
venting regimes are understood. The options for disposal by dilution
to below the lower flammable limit, inerting, dispersion of flammable
concentrations and flaring are discussed, along with the potential
for ignition of releases within the flammable range and the subsequent
need for flame extinguishing. The available literature on the protection
of vents from external ignition is critically examined, to determine
the appropriate parameters to allow selection of a disposal method.
A decision-tree is presented to allow a rational appraisal of the
most appropriate disposal method to be selected and precautions to
be applied for adequate protection of the vent.
Users
Please
log in to take part in the discussion (add own reviews or comments).