hds definitons

Question 1

A heat exchanger that uses a circulating refrigerant stream to condense or partially condense a vapor stream into a liquid. At the HDS Complex, they condense LPG from a treated fuel gas stream.

Answer 1

Chiller

Question 2

A heat exchanger that uses a cooling medium stream to condense or partially condense a vapor stream into a liquid.

Answer 2

Condenser

Question 3

A heat exchanger that uses a cooling medium stream to reduce the temperature of a process stream.

Answer 3

Cooler

Question 4

A piece of equipment that mixes Boiler Feed Water (BFW) with superheated steam to saturate the steam and lower its temperature.

Answer 4

Desuperheater

Question 5

A heat exchanger that uses a fan to blow ambient air across a finned tube- sheet containing a process stream.

Answer 5

Fin Fan Cooler

Question 6

A fuel gas or natural gas-fired furnace that uses forced or natural draft ambuent air to generate a combustion reaction that heats, vaporizes, or partially vaporizes a process stream.

Answer 6

Heater/Furnace

Question 7

A piece of equipment used to provided heat transfer from one process stream to another.

Answer 7

Heat Exchanger

Question 8

A heat exchanger used to heat, vaporize, or partially vaporize a liquid stream from a distillation column.

Answer 8

Reboiler

Question 9

A vessel that uses a heat medium and boiler feed water to produce steam and regulate steam pressure.

Answer 9

Steam Generator

Question 10

A vessel in which two or more materials are contacted in the presence of a stationary catalyst bed, allowing a chemical reaction to occur.

Answer 10

Fixed-bed Reactor

Question 11

A vessel in which two or more materials are contacted in the presence of a catalyst, allowing a chemical reaction to take place.

Answer 11

Reactor

Question 12

A machine that converts electrical energy to mechanical rotary motion to drive a pump, compressor, or other process equipment.

Answer 12

Electric Motor

Question 13

A device that uses steam energy to create a lower pressure (vacuum) on a process system.

Answer 13

Start-up Eductor

Question 14

A machine that uses centrifugal force to accelerate a gas and convert the energy to pressure.

Answer 14

Centrifugal Compressor

Question 15

A machine that increases the pressure of a liquid through the use of centrifugal force.

Answer 15

Centrifugal Pump

Question 16

A machine that transfers gases from a lower pressure area to a higher pressure area.

Answer 16

Compressor

Question 17

A machine that increases the velocity of a gas through the conversion of mechanical rotary motion.

Answer 17

Fan

Question 18

A machine that moves air to a heater or boiler by creating pressure through the conversion of mechanical rotary motion to centrifugal force.

Answer 18

Forced-draft Fan

Question 19

A device that adds energy to a liquid for the purpose of moving that liquid.

Answer 19

Pump

Question 20

A machine that increases the pressure of a gas by trapping and compressing specific amounts of the gas between a piston and cylinder wall.

Answer 20

Reciprocating Compressor

Question 21

A machine that increases the pressure of a liquid by the back-and-forth action of a piston, plunger, or diaphragm to physically displace the liquid.

Answer 21

Reciprocating Pump

Question 22

A vessel in which process chemicals come in contact with amine (lean amine) in a concurrent flow to remove hydrogen sulfide (H2S). At the HDS Heavy Complex, these are used to clean yp hydrogen or other sour gas streams.

Answer 22

Amine Contactor

Question 23

A vessel in which process streams are mixed with a caustic stream to remove mercaptan sulfur compounds and acid gases (H2S and CO2). At the HDS Light Complex, this is used to clean up a sour gas stream.

Answer 23

Caustic Contactor

Question 24

A vertical vessel that separates the components of a feed stream according to the different boiling points of the components.

Answer 24

Distillation/Fractionation Tower

Question 25

A vessel that uses chemical attraction to separate a multi-component stream into separate components that are relatively free of each other.

Answer 25

Extractor

Question 26

A vessel that uses a low pressure drop to separate lighter component from a process stream at a higher pressure.

Answer 26

Flash Drum

Question 27

A vessel used to remove liquid from a gas stream.

Answer 27

Knockout Pot/Drum

Question 28

A vessel that uses momentum, gravity, or coalesing to separate a mixed-phase stream into gas and liquid phases that are relatively free of each other. Other terms used: scrubbers, knockouts.

Answer 28

Separator

Question 29

A vessel, column, or tower that separates light components from heavier components by injecting a strip gas.

Answer 29

Stripper/Stripper Column/Stripping Tower

Question 30

A vessel that provides in-process storage capacity and residence time.

Answer 30

Accumulator

Question 31

A vessel in which a fluctuating flow is accumulated and from which a constant secondary flow is taken.

Answer 31

Feed Surge Drum

Question 32

A vessel that stores lube oil for mechanical equipment.

Answer 32

Lube Oil Storage Tank

Question 33

A vessel in which a fluctuating flow is accumulated and from which a constant secondary flow is taken.

Answer 33

Surge Drum

Question 34

A device used to analyze the composition of a process for desired effects. Analyzers give a chemical analysis or analyze for a physical property.

Answer 34

Analyzer