Ken Kimble (Reactor Vessels) Ltd
Gas Control Unit

For safe and reproducible hydrogenation.

BPC Pressflow Gas Control Unit

The pressflow gas control unit bpc provides the user with unexcelled accuracy in hydrogenation.  The bpc quickly provides the necessary data to scale up laboratory hydrogenation processes to pilot plant or production.

Hydrogenations from 1-400 bar can be fully automated.
The actual volume of gas used can be measured precisely in ml or mol.

The pressure in the vessel can be set and maintained accurately throughout the reaction.The total volume of gas to be used can be set, the bpc shuts off the gas supply when this volume has been reached.

BPC Pressflow Gas Control Unit

The standard units have a gas detector and close down in case of leaks. Ex versions are available.

The reactor and lines can be purged with inert gas before and after the reaction. The gas module which contains the entire valve assembly, two pressure gauges and all transducers sits beside the reaction vessel. The control module can be located remotely (up to 5m away) and gives the user all the required data.

Use:

BPC Pressflow Gas Control Unit

BPC Purging Diagram

1. Purge
The lines and the reactor are flushed with Nitrogen at a safe pressure.
The entire system is then filled with Hydrogen.

2. Reaction Phase
The user sets the desired reaction pressure and alters the regulated pressure to ensure that there will be an adequate flow rate. The consumed gas volume is calculated from the number of cycles, pressure, temperature and volume of the calibrated reservoir.

Gas Module

  • The gas module with its valves and sensors forms the mechanical section of the bpc.  Gas is fed to the gas module via two lines, one for Nitrogen, one for Hydrogen.  There is only one line leading to the reactor.
  • If gas is consumed by the reaction and the pressure in the vessel drops below the set value, more gas is supplied.  The actual volume of gas supplied is measured and displayed on the control module.
  • The volume of each pulse depends on the size of the reservoir and the difference between feed and regulated pressure.
  • If a leak occurs in the bpc an integrated detector immediately disables all electrical systems.

Control Module

  • The control module contains the LCD displays, the data entry keyboard and interfaces for PC, data logging, stirrer, door switch, etc.
  • The separation of the control module from the gas module allows the progress of the reaction to be monitored and controlled from outside the hazardous area.
  • Fully automatic monitoring and control of reactions over extended periods.
  • Continuous gas flow, no volume limitations.
  • Accurate monitoring and control of reaction pressure.
  • Control module can be switched to standby by an external alarm contact (such as a door switch).
  • Gas supply can be switched off after a pre set volume of gas has been dispensed.
  • Gas supply can be switched off if sudden increase in flow rate (eg vessel leak)
  • Control module can be integrated into recipe based reactor control system

Types

bpc

1202

1210

6002

6010

9901

 

 

 

bhpc

 

 

 

 

 

20001

40001

max delivery pressure

[bar]

12

12

60

60

100

200

400

reservoir volume

[ml]

2.6

13

2.6

13

2.6

2.6

2.6

max regulated pressure

[bar]

25

25

90

90

160

205

405

max flowrate at:

 

 

 

 

 

 

 

 

  • 1 bar pressure difference

[1/min]

0.312

1.56

0.312

1.56

0,312

0.312

0.312

  • 50% pressure difference of max delivery pressure

[1/min]

1.872

9.36

9.36

46.8

15.6

31.2

62.4

min recommended pressure difference

[bar]

0.5

1

2.5

5

4

10

20

max recommended pressure difference

[bar]

6

6

30

30

50

100

200

accuracy of 1 gas pulse at 25oC
in % within rec.pressure range

[%]

+/-1.5

+/-2

+/-1.5

+/-2

+/-2

+/-2

+/-2

max supply pressure

[bar]

200

200

200

200

200

415

415

ATEX version now available!


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© 2001-2006 Ken Kimble (Reactor Vessels) Ltd. All rights reserved. Ken Kimble (Reactor Vessels) Ltd., Unit 15, Bourne Enterprise Centre, Borough Green, Kent, UK  TN15 8DG. Tel: 01732 882791 Fax: 01732 885840