Tectonic process

a process whereby rocks or strata are

deformed by natural forces within the

Earth's crust

Ignition point

temperature to which a substance can

be heated before it will burn

Flash point

the lowest temperatures at which a liquid

will generate sufficient vapor to ignite

momentarily when exposed to a source

of ignition

Thermal shock

the property of a material to withstand

rapid changes in temperature

without fracture

Lagging

insulation Material which is a bad conductor

of heat used to cover pipes, reactors,

boilers, etc, to reduce loss of heat

Heat exchanger

equipment in which heat is transferred

between liquids and gases through a

tubular wall on a continuous basis The

transfer of heat is achieved by conduction

through the tube walls from a hot to a

relatively cool material by the countercurrent,

or concurrent, flow of hot and

cold materials

Sensible heat

the amount of heat required to raise or

lower the temperature of a substance

without a change of state occurring

Calorific value

a measure of the amount of energy that

is released in the form of heat when a fuel

is burned

Therm

100,000 British Thermal Units, a unit used

to measure quantities of gas

Terminal

an onshore installation designed to

receive oil and/or gas from a pipeline or

from tankers, it is not a refinery

Thermal cracking

the process whereby heavy hydrocarbon

molecules are broken down (cracked)

into lighter molecules by raising them to a

high temperature

Thermocouple

an electrical temperature measuring

device consisting of two wires of

differing metals which are joined at the

ends When this junction is heated, the

voltage produced is proportionate to

the temperature

Flow sheet

a diagram showing the principal plant

and equipment and their interconnections,

represented in symbolic form, for a

particular process of operations

Inventory

stock The quantity of raw materials or

spare parts available for use, or the

quantity of product available for sale

Bonded goods

imported goods deposited in a government

warehouse until duty is paid

Toxic

the quality of a substance being poisonous

Toluene

methyl benzene (C6H5CH3) - an important

organic solvent

Ton

a long ton weighs 2240 pounds, a short,

or net, ton weighs 2000 pounds, a metric

ton equals 1000 kilograms, with a kilogram

equalling 2 2 pounds

Fuel oils

the heavy distillates from the oil refining

process, used as fuel for power stations,

industry, marine boilers, etc

Torr

an international unit of vacuum measurement,

760 torr = one standard atmosphere

Single buoy mooring (SBM)/Single point

Дата добавления: 2015-11-14