Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Cooler exchanger

All the major process equipment, such as vessels, reactors, columns, furnaces, heat exchangers, coolers, pumps, compressors, motors, fans, turbines, filters, centrifuges, dryers, etc., including field fabrication and testing if necessary ... [Pg.299]

Kellogg fluid-bed units, which also use gas obtained from refonning the Cl and Cg hydrocarbons produced in the Arge section. There -are five fixed-bed reactors, each with a heat exchanger, cooler, and reqrcle blower. The reactors are almost 10 ft in diameter and approximately 40 ft in height. [Pg.674]

Two ways to control the outlet temperature of a heat exchanger cooler are sketched on the following page. Comment on the relative merits of these two systems from the standpoints of both control and heat exchanger design. [Pg.99]

To illustrate the interfacing between Aspen HYSYS and Excel, an ammonia synthesis process (Figure 4.C.1) is taken from simulation examples available in Aspen HYSYS. This process consists of several reactors, separators and heat exchangers/coolers. The main steps of this interfacing are shown below. Some familiarity with Aspen HYSYS, Excel and VBA is required for adopting/using them. Note that sample Aspen HYSYS and Excel files for interfacing can be downloaded from this book s website. [Pg.122]

Heat exchange Cooler/Heater Cooler or heater... [Pg.114]

Transfer contents of unit Fermenter 2 to Centrifuge Holding Tank through beat exchanger Cooler. The final siren tenqieratute is 4 C. Transfer 100% of vessel contents. The ttansfer time is 0.5 day. [Pg.152]

Condenser of the residual heat removal system 6 - Heat exchanger - cooler... [Pg.358]

A closed system for removing naphthalene from coke-oven gas in the final cooler is described by Kroll and Barry (1991). In this system, recycled water and fresh water are sprayed into the process gas at high flow rates to cool and saturate the gas with water. Naphthalene is condensed and collected with the water. The naphthalene is removed from the water by contact with liquid tar in a liquid-liquid extraction step at the bottom of the spray contactor. After naphthalene removal the water is pumped through an indirect heat exchanger (cooler) and recycled with fresh water makeup to the spray nozzles. [Pg.1366]

The Stamicarbon wastewater system consisting of two desorbers, hydrolyzer, hydrolyzer heater, reflux condenser, desorber heat exchanger, and a wastewater cooler is very efficient. Also, in many plants, as the water contains less than 1 ppm of NH and of urea, it can be used as cooling water make-up, or boiler-feed water. [Pg.304]

Helping to propel capacities upward has been the advent of greatly improved preheaters, which partially calcine the stone and significantly improve thermal efficiency. Modem preheaters improve capacity by 15—20% and decrease fuel consumption a similar percentage. Other kiln appurtenances and accessories that enhance efficiency and lime quahty are the contact coolers, and such kiln internals as metal refractory trefoil systems that act as heat exchangers, dams, and lifters. [Pg.171]

The highly exothermic nature of the butane-to-maleic anhydride reaction and the principal by-product reactions require substantial heat removal from the reactor. Thus the reaction is carried out in what is effectively a large multitubular heat exchanger which circulates a mixture of 53% potassium nitrate [7757-79-1/, KNO 40% sodium nitrite [7632-00-0], NaN02 and 7% sodium nitrate [7631-99-4], NaNO. Reaction tube diameters are kept at a minimum 25—30 mm in outside diameter to faciUtate heat removal. Reactor tube lengths are between 3 and 6 meters. The exothermic heat of reaction is removed from the salt mixture by the production of steam in an external salt cooler. Reactor temperatures are in the range of 390 to 430°C. Despite the rapid circulation of salt on the shell side of the reactor, catalyst temperatures can be 40 to 60°C higher than the salt temperature. The butane to maleic anhydride reaction typically reaches its maximum efficiency (maximum yield) at about 85% butane conversion. Reported molar yields are typically 50 to 60%. [Pg.455]

Fig. 3. Rough layout sketch (/) the two fined heaters F-1 and F-2 are located together but are separated from the other equipment with a subpipeway connecting the process area to the heater area (2) the reboiler E-2 is located adjacent to its column, T-1. The preheat exchanger E-4 is located adjacent to tower T-3 (J) the elevated overhead condenser E-3 is located next to the overhead accumulator V-1. Also, the ain condenser EE-3 is located adjacent to its overhead accumulator V-2 (4) the rest of the ain coolers (EE-1—3, -5) are grouped together ia a common fan stmcture (5) all equipment and related piping is routed to and from the existing piperack saving the addition of a new piperack (6) all pumps (P-1—P-6) are located ia a row under the piperack, and each... Fig. 3. Rough layout sketch (/) the two fined heaters F-1 and F-2 are located together but are separated from the other equipment with a subpipeway connecting the process area to the heater area (2) the reboiler E-2 is located adjacent to its column, T-1. The preheat exchanger E-4 is located adjacent to tower T-3 (J) the elevated overhead condenser E-3 is located next to the overhead accumulator V-1. Also, the ain condenser EE-3 is located adjacent to its overhead accumulator V-2 (4) the rest of the ain coolers (EE-1—3, -5) are grouped together ia a common fan stmcture (5) all equipment and related piping is routed to and from the existing piperack saving the addition of a new piperack (6) all pumps (P-1—P-6) are located ia a row under the piperack, and each...
Fig. 1. Flow diagram of production of sulfur dioxide from oleum 1, 30% oleum exchanger 2, SO vaporizer 3, reactor 4, coolant surge tank 5, coolant ckculatkig pump 6, coolant exchangers 7, sludge and acid pump 8, scmbber 9, SO2 cooler 10, gas cleaner 11, SO2 compressor 12, pulsation damper and 13, SO2 condenser. CM is the condensate FRC, flow recording controller PIC, pressure kidicatkig controller SM, steam TC, temperature recorder ... Fig. 1. Flow diagram of production of sulfur dioxide from oleum 1, 30% oleum exchanger 2, SO vaporizer 3, reactor 4, coolant surge tank 5, coolant ckculatkig pump 6, coolant exchangers 7, sludge and acid pump 8, scmbber 9, SO2 cooler 10, gas cleaner 11, SO2 compressor 12, pulsation damper and 13, SO2 condenser. CM is the condensate FRC, flow recording controller PIC, pressure kidicatkig controller SM, steam TC, temperature recorder ...
B. Omberg and P. Crook, F Neir NickelFlloir and a New Semi-Welded Plate Heat Exchanger The State of theFrtfor Tomorrow s Fcid Coolers, Sulphur 94 (British Sulphur Conference), Tampa, Fla., Nov. 1994. [Pg.195]


See other pages where Cooler exchanger is mentioned: [Pg.44]    [Pg.88]    [Pg.238]    [Pg.44]    [Pg.163]    [Pg.905]    [Pg.89]    [Pg.210]    [Pg.216]    [Pg.348]    [Pg.153]    [Pg.433]    [Pg.877]    [Pg.44]    [Pg.88]    [Pg.238]    [Pg.44]    [Pg.163]    [Pg.905]    [Pg.89]    [Pg.210]    [Pg.216]    [Pg.348]    [Pg.153]    [Pg.433]    [Pg.877]    [Pg.242]    [Pg.523]    [Pg.241]    [Pg.84]    [Pg.517]    [Pg.518]    [Pg.518]    [Pg.148]    [Pg.423]    [Pg.204]    [Pg.183]    [Pg.356]    [Pg.41]    [Pg.220]    [Pg.76]    [Pg.126]    [Pg.508]    [Pg.515]    [Pg.515]    [Pg.20]    [Pg.21]    [Pg.22]    [Pg.292]    [Pg.7]   


SEARCH



Air cooler exchangers

Coolers

Heat exchangers liquid coolers

© 2024 chempedia.info