fixed bed catalytic reactor design

Ngày tải lên: 02/04/2014, 15:50

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Ngày tải lên: 18/12/2013, 09:19

... NG NGUY NGHIÊN CU NG DNG CÔNG NGH MBBR (MOVING BED BIOFILM REACTOR)  X C THI SN XUT BIA Chuyên ngành : Công ngh ng MSHV : ... system encountered many difficulties. This research was studied on application of Moving Bed Biofilm Reactor for brewing wastewater treatment, given more options for upgrading existing wastewater ... nh tính cn thit khi la ch  tài: “Nghiên cư ́ u ứng dụng công nghệ MBBR(Moving Bed Biofilm Reactor) để xử lý nước thải sản xuất bia”. 2. Tng quan 31 s c các vi sinh...

Ngày tải lên: 26/02/2014, 13:08

... pellets inside a reactor (column or tube). In such fixed -bed reactors, the conventional way to achieve the appropriate Table 2.1 Slurry reactors versus conventional fixed -bed reactors N Compared ... conventional types of fixed -bed reactors, which are mainly employed for multiphase processes: Trickle -Bed Reactors (TBRs), Bubble (packed) Column Reactors (BCRs), and MultiTubular Reactors (MTRs). Some ... Compared features Slurry reactor Fixed- bed reactors 1 Reaction performance 1.1 Overall reaction rate related to the catalyst mass High Low 1.2 Overall reaction rate related to the reactor volume (or...

Ngày tải lên: 16/03/2014, 22:20

... biofilm khác, vì vy nó tu kin thun li cho quá trình x Hình 2.8b. Anoxic reactor Hình 2.8a. Aerobic reactor 2. Tng quan 29 Hình 2.9. Các loại giá thể K1, K2, K3, Biofilm ... NG NGUY NGHIÊN CU NG DNG CÔNG NGH MBBR (MOVING BED BIOFILM REACTOR)  X C THI SN XUT BIA Chuyên ngành : Công ngh ng MSHV : ... Chuyên ngành : Công ngh Môi trng 1- TÊN  TÀI: Nghiên cu ng dng công ngh MBBR (Moving Bed Biofilm  x lc thi sn xut bia. 2- NHIM V LUN VN:  Lp mô hình nghiên...

Ngày tải lên: 20/03/2014, 03:21

... different design levels of conversion on the sizes of the reactor and the condenser. A 90% conversion design produces a 1.68-m 3 reactor Figure 2.25 Matlab program for autorefrigerated reactor. 2.7 ... the conversion is only 85% in the first reactor. If the 2-CSTR design has more potential control problems than the 1-CSTR design, we would expect the 3-CSTR design to be even worse. This is precisely ... each reactor is further reduced (14.4 m 3 with diameter 2.09 m), so the total reactor volume of the thr ee vessels is 43 m 3 , which is only 16% of the volume of the reactor in the 1-CSTR design. ...

Ngày tải lên: 01/04/2014, 10:24

... FIVE Introduction to Reactor Design Fundamentals for Ideal Systems 260 Introduction 260 A General Approach 262 Ideal Isothermal Reactors 264 Numerical Methods for Reactor Systems Design 279 Reversible ... Selectivity in Reactors 351 Relationship Between Conversion, Selectivity, and Yield 353 Plug Flow Reactor 362 Heterogeneous Tubular Reactor 371 Design Equation for Systems of Variable Density 372 Design ... 434 Batch Reactor 457 Plug Flow Reactor 472 Autothermal Reactors 477 Conversion in Ammonia Synthesis 478 Two-Dimensional Tubular (Plug Flow) Reactor 492 Pressure Drop (∆P) in Tubular (Plug Flow) Reactors...

Ngày tải lên: 01/04/2014, 10:25

... Engineering or Reactor Design Aspects of Kinetics 1. R. Aris, Introduction to the Analysis of Chemical Reactors, Prentice-Hall, Englewood Cliffs, N.J., 1965. 2. J. J. Carberry, Chemical and Catalytic ... fertile environment for research and textbook writing in the area of chemical kinetics and reactor design. The text by O. A. Hougen and K. M. Watson represents a classic pioneering effort to ... 1974. 3.2.2.1 General Reactor Types. In planning ex- periments the chemist is most apt to think in terms of closed systems and has traditionally used some form of batch reactor. The chemical engineer,...

Ngày tải lên: 01/04/2014, 10:25

... catalyst is charged into a fixed- bed reactor. The reactor structure is designed in such a way that the reaction fluid is uniformly distributed over the catalyst bed with a low and uniform ... HCCO+O=HCO+CO CHEMICAL REACTIONS AND DESIGN OF CHEMICAL REACTORS 5 (a) Tubular reactor, plug flow (b) Tank reactor, mixed flow. The basic concepts of these reactors are shown in Figure 1.2 ... facilitate the generalized design strategy of reactors. The reactor types and applications are introduced in subsequent sections. 4.1.1 HOMOGENEOUS REACTORS Reactors which handle reacting...

Ngày tải lên: 01/04/2014, 10:29

... vented from the reactor while products accumulate in the solution. A type of continuous reactor with performance similar to a batch reactor is the plug-flow reactor, a tubular or pipeline reactor with ... with the optimal feed ratio, the optimal temperature, and the effect of reactor design on selectivity. The design of adiabatic reactors for reversible reactions presents many Copyright © 2003 by ... performance of a tubular reactor, a packed bed, or perhaps a new type of contactor for the same reaction. Fundamental kinetic parameters obtained from a small fixed -bed reactor might lead to consideration...

Ngày tải lên: 01/04/2014, 10:31

... Three-Phase Reactors 412 11.2.1 Trickle -Bed Reactors 412 11.2.2 Gas-Fed Slurry Reactors 413 11.3 Moving Solids Reactors 413 11.3.1 Bubbling Fluidization 416 11.3.2 Fast Fluidization 417 11.3.3 Spouted Beds ... a constant-pressure reactor) , V(t) Variable cross section, A c (z) Fed batch reactors, Q in 6¼ 0 Transpired wall reactors Nonideal batch reactors may have spatial variations in concentration Nonideal tubular reactors ... result. If local stoichiometry is preserved, no more than M reactor design equations need to be solved to determine all 68 CHEMICAL REACTOR DESIGN, OPTIMIZATION, AND SCALEUP follow first-order kinetics...

Ngày tải lên: 01/04/2014, 10:31

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Ngày tải lên: 29/06/2014, 00:20

... compilation ª 2008 FEBS 783 Improving thermostability and catalytic activity of pyranose 2-oxidase from Trametes multicolor by rational and semi-rational design Oliver Spadiut 1 , Christian Leitner 1 , ... compilation ª 2008 FEBS improved specifically for the substrate d-glucose. These improvements of the catalytic properties could be com- bined advantageously in the double mutants, especially those ... considerably reduced K m values com- bined with practically unchanged k cat , and therefore improved catalytic efficiencies (k cat ⁄ K m ), notably for d-glucose. One aspect that has not been studied...

Ngày tải lên: 07/03/2014, 03:20

... reactions. design calcula- tions for plug flow reactors in realistic typical situations (e.g., thermal cracking), fixed bed reactors, fluidized be'd reactor design, and multiphase reactor design. ... Fundamental Insight 11.3 Factors Involved in the Preliminary Design of Fixed Bed Reactors 11.4 Modeling of Fixed Bed Reactors Part 11 Pseudo-Homogeneous Models 11.5 The Basic OneDimensional ... Tunk Reactor, 446 10.4.b Transient Behavior Exumple 10.4.b-I Temperalure Osciliariom in u Mixed Reactor for ihe Vapor Phase Chlormarion of Merhyl Chloride, 452 11 Fixed Bed Catalytic...

Ngày tải lên: 01/04/2014, 10:25

Ngày tải lên: 01/04/2014, 10:30