Apparatus for odorizing liquid natural gas

Patent · Tue Sep 23 04:00:00 UTC 1975

OSTI ID:6749052

Mulliner, D K

San Diego Gas and Electric Co. and Dual Fuel Systems, Inc.'s new method odorizes LNG with an odorant in discrete volumes as the LNG is being transferred from a bulk storage vessel to a tanker or the like. The odorant-diluent solution, preferably thiophene-propane (20 parts propane to 1 part thiopene) is introduced into an injection vessel of a predetermined volume. High-pressure gas at a pressure above the diluent's vapor pressure forces the odorant and diluent through a heat exchanger and into the LNG. In the heat exchanger, the odorant-diluent mixture is cooled to a predetermined level by LNG boil-off from the bulk storage vessel. This procedure is repeated as many times as necessary to odorize the quantity of natural gas being taken from the bulk storage vessel.

• Assignee: San Diego Gas and Electric Co.
• Patent Number(s): US 3907515
• OSTI ID: 6749052
• Country of Publication: United States
• Language: English

Related Subjects

03 NATURAL GAS
030500* -- Natural Gas-- Health & Safety
ALKANES
DISPERSIONS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HETEROCYCLIC COMPOUNDS
HYDROCARBONS
LIQUEFIED NATURAL GAS
MIXTURES
NATURAL GAS
ODORIZATION
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
PROCESSING
PROPANE
SHIPS
STORAGE
TANKER SHIPS
THIOPHENE
TRANSPORT