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Liquefied Petroleum Gas (LPG) a mixture of gases, primarily
propane and butane. These gases come from underground sources as a constituent
of wet natural gas or crude oil or as a byproduct from refinery. LPG is
produced commercially from petroleum and stored under pressure to keep
it in a liquid state. The boiling point of LPG ranges from about -44C
to 0C, so that the pressure required liquefying it is considerable and
the containers for it is made of heavy steel. When prepared as fuel, LPG
is largely propane; common uses are for powering automotive vehicles,
for cooking and heating, and sometimes for lighting in rural areas. LPG
is an attractive fuel for internal combustion engines because it burns
with little air pollution and little solid residue, and it has a high
octane rating. In Bangladesh there is a great demand for LPG, particularly
in western and northern region of the country, where there is no pipeline
supply of natural
gas. In 1990-91 the production of LPG was 8,025 million tons
and the annual production doubled in six years raising it to 16,054 million
tons valued at Tk 151 million in 1996-97. The most demand for LPG is in
transport sector (1.16 million tons) followed by domestic use (4,42,550
tons) and agricultural consumption (4,32,360 tons). A small amount of
LPG is also used for local power generation. [Md Abul Hashem] |
