Brinkley

S. R. Brinkley and W. E. Gordon, "Explosive Properties of the Ammonium Nitrate-Fuel Oil System," in Proceedings of 31st Inst. Congress of Industrial Chemisty, Liege, Belg., 1958. 

The procedure proposed for the optimization work is the Smith-Brinkley Method. It is especially good for the uses described in this section. The more accurately known the operating parameters, such as tray temperatures and internal traffic, the more advantageous the Smith-Brinkley Method becomes. 

The Smith-Brinkley Method uses two sets of separation factors for the top and bottom parts of the column, in contrast to a single relative volatility for the Underwood Method. The Underwood Method requires knowing the distillate and bottoms compositions to determine the required reflux. The Smith-Brinkley Method starts with the column parameters and calculates the product compositions. This is a great advantage in building a model for hand or small computer calculations. Starting with a base case, the Smith-Brinkley Method can be used to calculate the effect of parameter changes on the product compositions. 

Smith fully explains the Smith-Brinkley Method and presents a general equation from which a specialized equation for distillation, absorption, or extraction can be obtained. The method for distillation columns is discussed here. 

The Smith-Brinkley Method can therefore be used to generate a hand base case beginning with either a heat and material balanced plant case, a rigorous computer solution of a plant case, or computer solution of a design case. Once the hand base case is established, alternate cases can be done by hand (or small computer having limited core) using the Smith-Brinkley Method. 

The preceding discussion on reflux assumes that the condenser is not limiting when the reflux is raised. For a severely limited condenser, an evaluation must first be made of the condenser heat transfer before analyzing the effect of a reflux increase with Smith-Brinkley. Likewise, a limiting reboiler or trays close to flood would have to be evaluated prior to Smith-Brinkley calculations. 

In summary, for each alternate operation, an approximate net effect or set of effects can be quickly built into the Smith-Brinkley input to determine new end compositions. The instrumentation scheme will affect the result produced by an operating change. 

This section is a companion to the section titled Fractionators-Optimization Techniques. In that section the Smith-Brinkley method is recommended for optimization calculations and its use is detailed. This section gives similar equations for simple and reboiled absorbers. 

For a simple absorber the Smith-Brinkley equation is for component i ... 

If it is desired to estimate the overhead and bottoms molar flows of a single component, this can be done without performing the full calculation. This is another advantage of the Smith-Brinkley method. 

Smi = Smith-Brinkley stripping factor for component i in bottom section... 

Time permitting, the more lengthy Smith-Brinkley Method (Reference 19) could also be used as an analysis troubleshootins tool. 

Why not put new lyrics to an old tune This is an excellent idea, and many have done this very thing. Rice" started w ith the Smith-Brinkley raethod" used to calculate distillation, absorption, extraction, etc., overhead and bottoms compositions, and developed distillation equations for determining the liquid composition on any tray. This together with bubble point calculations yield a column temperature profile useful for column analysis. 

This author developed a reboiled absorber alternate from the Smith-Brinkley generalized equation, and friends have developed plant fractionator control algorithms using Smith-Brinkley. 

Table 33 gives the solubilities and the values of —log K for Agl, AgBr, and AgCl from 5 to 45°C from the measurements of Owen and Brinkley.1... 

Similarly for AgCl at 25°C we find from Table 33 the value AS0 = 7.9 e.u. Owen and Brinkley regarded this value as probably more accurate than the value 8.2 obtained in Sec. 90 from the heat of solution. 

See Detonation Waves Steady-state, One-Dimensional Reaction Waves with Finite Reaction Rate in Vo 4, D7Q3-R to D704-R. Ref S. Brinkley, Jr J.M. Richardson, 4th SympCombstn, Williams Wilkins, Baltimore (1952), 450-57 CA 49, 6608 (1955)... 

Microtubule-organizing centers (MTOCs) serve to nucleate, stabilize, and organize the arrangement of microtubules, both in vivo and in vitro (Brinkley, 1985 Joshi, 1994). Two large morphological groups of MTOCs are identified ... 

Brinkley, B.R. (1985). Microtubule organizing centers. Atm. Rev. Cell Biol. 1,145-172. 

CHANDALIA M, GARG A, LUTJOHANN D, VON BURGMANN K, GRUNDY S M, BRINKLEY L J (2000) Beneficial effects ofhigh dietary fiber intake in patients with Type 2 Diabetes Mellitus. N Eng J Med, Ml 1392-8. 

Mott GE, AW Brinkley, CL Mersinger (1980) Biochemical characterization of cholesterol-reducing Eubacterium. Appl Environ Microbiol 40 1017-1022. 

Smith and Brinkley developed a method for determining the distribution of components in multicomponent separation processes. Their method is based on the solution of the finite-difference equations that can be written for multistage separation processes, and can be used for extraction and absorption processes, as well as distillation. Only the equations for distillation will be given here. The derivation of the equations is given by Smith and Brinkley (1960) and Smith (1963). For any component i (suffix i omitted in the equation for clarity)... 

The procedure for using the Smith-Brinkley method is as follows ... 

Examples of the application of the Smith-Brinkley method are given by Smith (1963). 

Smith, B. D. and Brinkley, W. K. (1960) AIChE Jl 6, 446. General short-cut equation for equilibrium stage processes. 

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