uop fluid bed catalytic cracking

... L Occelli 129 Advances in Fluid Catalytic Cracking: Testing, Characterization, and Environmental Regulations, edited by Mario L Occelli Advances in Fluid Catalytic Cracking Testing, Characterization, ... Catalyst Entrainment in Fluidized Bed Regenerators 155 Ray Cocco, Roy Hays, S B Reddy Karri, and Ted M Knowlton Chapter 12 Application of 1H-NMR for Fluid Catalytic Cracking Feed Characterization ... 1989 Kayser, J C Versatile Fluidized Bed Reactor U.S Patent 6,069,012, 05/23/1997 Harding, R H., Zhao, X., Qian, K., Rajagopalan, K., and Cheng, W.-C Fluid Catalytic Cracking Selectivities of...

Ngày tải lên: 02/04/2014, 16:01

... Fluid Catalytic Cracking Handbook SECOND EDITION This page intentionally left blank Fluid Catalytic Cracking Handbook HandbookDesign,Operation and ... Utilities/Offsites, 305 Summary, 306 276 Emerging Trends in Fluidized Catalytic Cracking _ 307 Reformulated Fuels, 308 Residual Fluidized Catalytic Cracking (RFCC), 323 Reducing FCC Emissions, 327 Emerging ... Data ghbeigi, Reza Fluid catalytic cracking handbook / Reza Sadeghbeigi.—2nd ed p cm Includes bibliographical references and index ISBN 0-88415-289-8 (alk paper) Catalytic cracking Title P690.4.S23...

Ngày tải lên: 02/04/2014, 16:04

... Various new techniques of fluidization, such as © 1999 by CRC Press LLC magnetically stabilized fluidized beds and compartmented fluidized beds, are described Semifluidized beds are among the other ... Plasma Fluidized Bed A Plasma–Solid Interactions Heat Transfer to Solid Solid Quenching B Plasma and Fluid Bed DC Plasma Fluid Bed a Description b Testing Inductively Coupled Plasma Fluid Bed C ... Overall Mass Balance of a Fluid Bed Dryer f Model Testing g Constraints E Vibro Fluidized Bed Dryer Basics Vibro Inclined Fluidized Bed a Gas Velocity b Heat Transfer F Spouted Bed Dryer G Internally...

Ngày tải lên: 02/04/2014, 14:57

Ngày tải lên: 02/04/2014, 15:50

... Công nghệ cracking xúc tác • Cracking xúc tác lớp cố định • Cracking xúc tác lớp sôi 6.1 Cracking xúc tác lớp cố định • Hiệu suất chuyển hóa thấp • Ngưng tụ cốc • Quá nhiệt cục 6.2 Cracking xúc ... động (moving bed) 6.2 Cracking xúc tác lớp sôi Thiết bị phản ứng kiểu song song (Công nghệ UOP) 6.2 Cracking xúc tác lớp sôi Thiết bị phản ứng kiểu song song (Công nghệ IFP/Axens) 6.2 Cracking xúc ... trung hòa chúng cấu tử sản phẩm cracking xúc tác 4 Hóa học trình cracking XT 4.1 Phản ứng mong muốn Phản ứng cắt mạch (cracking ): xảy theo chế ion cacbonium Hoạt tính cracking hydrocacbon giảm dần...

Ngày tải lên: 10/08/2015, 05:14

... Công nghệ cracking xúc tác • Cracking xúc tác lớp cố định • Cracking xúc tác lớp sôi 6.1 Cracking xúc tác lớp cố định • Hiệu suất chuyển hóa thấp • Ngưng tụ cốc • Quá nhiệt cục 6.2 Cracking xúc ... động (moving bed) 6.2 Cracking xúc tác lớp sôi Thiết bị phản ứng kiểu song song (Công nghệ UOP) 6.2 Cracking xúc tác lớp sôi Thiết bị phản ứng kiểu song song (Công nghệ IFP/Axens) 6.2 Cracking xúc ... trung hòa chúng cấu tử sản phẩm cracking xúc tác 4 Hóa học trình cracking XT 4.1 Phản ứng mong muốn Phản ứng cắt mạch (cracking ): xảy theo chế ion cacbonium Hoạt tính cracking hydrocacbon giảm dần...

Ngày tải lên: 30/08/2015, 20:09

... (http://www.aapspharmscitech.org) Several methods have been used to quantify and describe the fluid dynamics of particles in fluid beds, including positron emission particle tracking,10,11 radioactive particle ... determine the pellet mass flow rate (MFR) was explored in this study to describe the fluid dynamics of particles in fluid bed coaters There were certain limitations identified with this method, in particular ... coating (Figure 6) This behavior was also seen in a conical spouted bed, where the solid flow rate increased with increasing stagnant bed height.14 This finding was probably due to the result of There...

Ngày tải lên: 19/09/2014, 15:33

... described above 27 2.2 The catalytic bed materials Sand 16 34 15 33 14 32 10 28 11 29 12 30 13 31 lower pressure lock The bed material and operation conditions for the tests are described in ... of catalytic bed materials on gas composition, CH4 and gravimetric tar 258 €ransson et al / Renewable Energy 81 (2015) 251e261 K Go somewhat when the catalytic bed materials are used This catalytic ... enriches in the ash layer covering bed material particles, the catalytic reforming of tar can be enhanced to a great degree The behaviour of catalytic and non -catalytic bed materials differs when they...

Ngày tải lên: 01/08/2016, 09:30

... treatment [10–12], thermal cracking [13], plasma-assisted cracking [14,15], and catalytic reforming [16–20], have been widely applied for tar elimination Among these, catalytic reforming is considered ... found in smaller scale, fixed -bed gasifiers On the other hand, the bed temperature is limited to avoid the bed agglomeration and the gasification efficiency of a fluidized bed (FB) may be limited if ... besides the inert bed material or solid catalyst, there is a distribution of fuel and char particles in the bed Therefore, the movement of solids in the vessel should be described by accounting...

Ngày tải lên: 02/08/2016, 09:35

... * Vì trình cracking xảy trạng thái lu thể (fluid) chất xúc tácvà hydrocacbon, nên trình xúc tác thờng đợc gọi Fluid Catalytic Cracking viết tắt FCC (cracking xúc tác pha lu thể) 675oC 2,4 atm ... olefin, naphten aromat PP Polypropylen R Nhóm alkyl RCC Cracking xúc tác nguyên liệu dầu cặn (residue catalytic cracking) RE Cation đất RFCC Cracking xúc tác pha lu thể dầu cặn RON Trị số octan ... lớn trình cracking xúc tác Cracking chuyển hoá phân tử lớn dầu mỏ thành phân tử hydrocacbon nhỏ thuộc phân đoạn gasolin (xăng) 1.1 Giới thiệu tổng quát công nghệ cracking Các trình cracking, ...

Ngày tải lên: 04/10/2012, 13:52

... notes (No 1) The beginning of fluid mechanics Fig 1.5 Sketches from Leonard0 da Vinci's notes (No ) On the other hand, the advent of hydrodynamics, which tackles fluid movement both mathematically ... water conduit had to be designed and its Fig 1.2 Relief of ancient Egyptian ship The beginning of fluid mechanics Fig 1.3 Ancient Greek ship depicted on old vase inclination or supply pressure had ... separation region Leonardo was the first to find the least resistive ‘streamline’ shape 4 History of fluid mechanics Leonardo da Vinci (1452-1519 ) An all-round genius born in Italy His unceasing zeal...

Ngày tải lên: 22/10/2012, 10:59

... called shear flow Figure 2.1 shows the case where the fluid in the gap is not flowing However, the velocity distribution in the case where the fluid is flowing is as shown in Fig 2.2 Extending eqn ... or air, the shearing stress z is proportional to the velocity gradient duldy Such fluids are called Newtonian fluids On the other hand, liquid which is not subject to Newton's law of viscosity, ... as a liquid pulp, a high-molecular-weight solution or asphalt, is called a non-Newtonian fluid These fluids are further classified as shown in Fig 2.4 by the relationship between the shearing...

Ngày tải lên: 22/10/2012, 10:59

... pressure 22 Fluid statics 3.1.3 Characteristics of pressure The pressure has the following three characteristics The pressure of a fluid always acts perpendicular to the wall in contact with the fluid ... value, values of the pressure acting at one point in a fluid at rest are equal regardless of its direction The fluid pressure applied to a fluid in a closed vessel is transmitted to all parts at ... the hydraulic press 3.1.4 Pressure of fluid at rest In general, in a fluid at rest the pressure varies according to the depth Consider a minute column in the fluid as shown in Fig 3.4 Assume that...

Ngày tải lên: 22/10/2012, 10:59

... Since no fluid comes in or goes out through the stream tube wall, the fluid is regarded as being similar to a fluid flowing in a solid tube This assumption is convenient for studying a fluid in ... obtained a value of x io4 for it In general, liquid is called an incompressible fluid, and gas a compressible fluid Nevertheless, even in the case of a liquid it becomes necessary to take compressibility ... nature of the situation Fluid particles running through a narrow channel flow, while undergoing deformation and rotation, are shown in Fig 4.8 Fig 4.8 Deformation and rotation of fluid particles running...

Ngày tải lên: 22/10/2012, 10:59

... the force of fluid acting on the pipe; the force of the pipe acting on the fluid is -F This force and the pressures acting on sections AB and CD act on the fluid, increasing the fluid momentum ... efforts to popularise the law of fluid motion, while tackling various novel problems in fluid statics and dynamics Originated the Latin word hydrodynamics, meaning fluid dynamics (5.7) represent ... energy applied to a fluid Consewation of energy 57 Fig 5.2 Movement of roller-coaster Fig 5.3 Conservation of fluid energy A streamline (a line which follows the direction of the fluid velocity)...

Ngày tải lên: 22/10/2012, 10:59

... flow rate, the fluid mass stored in the fluid element per unit time can be obtained, i.e Similarly, the fluid mass stored in it per unit time in the y direction is The mass of fluid element (pbdxdy) ... equation is independent of whether the fluid is viscous or not, the same equation is applicable also to an ideal fluid Consider an elementary rectangle of fluid of side dx, side dy and thickness ... is applicable to the unsteady flow of a compressible fluid In the case of steady flow, the first term becomes zero For an incompressible fluid, p is constant, so the following equation is obtained:...

Ngày tải lên: 22/10/2012, 10:59

... velocity) Since the velocity of a viscous fluid is zero on the wall, the fluid near the wall is decelerated The range subject to deceleration extends as the fluid flows further downstream, until ... Where fluid flows in an oblong pipe as shown in Fig 7.7, let the pressure drop over length I be h, the sides of the pipe be a and b respectively, and the wall perimeter in contact with the fluid ... A +t- v2 d2s 2s l ( l / d ) ( u / g ) expresses the frictional loss of head (the lost energy of fluid per unit weight) [(u2/2g) expresses the pressure reduction equivalent to the sum of the velocity...

Ngày tải lên: 22/10/2012, 10:59

... masonry Both sides stone-paved but bottom face irregular earth Deep, sand -bed river whose cross-sections are uniform Gravel -bed river whose cross-sections are uniform and whose banks are covered ... 8.6, the total head of fluid at Point A is v2 P total head = - + -+ z 2g P9 If the depth of water channel is h, then + z,, P h=-+z PS Consequently, the total head may be described as follows: u2...

Ngày tải lên: 22/10/2012, 10:59

... cylinder Ideal fluid Let us theoretically study (neglecting the viscosity of fluid) a cylinder placed in a flow The flow around a cylinder placed at right angles to the flow U of an ideal fluid is ... the fluid particles in and around the boundary layer mix with each other by the mixing action of the turbulent flow to make - - Fig 9.6 Flow around a cylinder ' Streeter, V.L., Handbook o Fluid ... torque acting on a revolving disc If a disc revolves in a fluid at angular velocity o,a boundary layer develops around the disc owing to the fluid viscosity Now, as shown in Fig 9.14, let the radius...

Ngày tải lên: 22/10/2012, 10:59