SHELL CONSEP

environmental control apparatus and instruments, namely distillation trays, contacting trays, and centrifugal separators for contacting gases and liquids in the field of oil refining and natural gas liquifaction; fluid separation apparatus for separation of gas from liquid in a chemical or oil refinery, namely, separation columns for the distillation, extraction, absorption or stripping of gas from liquid in refining operations so as to refine petroleum productions