Buy API 12J: SPECIFICATION FOR OIL AND GAS SEPARATORS from SAI Global. Status: Check Published. Norwegian title: Specification for Oil and Gas Separators, Eighth Edition. English title: Specification for Oil and Gas Separators, Eighth. API SPEC 12J: Specification for Oil and Gas Separators. API SPEC 12J. Edition, October Complete Document. Specification for Oil and Gas.

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This 8tg particularly important for separators handling higher liquid loads. For horizontal separators, the sizing depends on in addition to the droplet size, density of gas and liquid phases, and gas velocity separator effective length, L eand the depth available for gas flow, h Gi.

Posted on Eeition 1, at If the calculated value of K SH by Equation 4 is greater than the maximum value of 0. For practical applications, the first term on the right hand side is replaced by K S.

For vertical separators with no mist extractor devices, Chap 11, Vol 2 of the Gas Conditioning and Processing book presents K S as a function of pressure and liquid droplet size [5]. August 7, at 8: The two curves for micron droplet size in Figure 2 were divided into 4 and edirion segments based on pressure range for the lower and upper curves, respectively.

Table 6 provides vane pack performance characteristics [3, aip, 8].

Thanks for your reply. Mist extractor capacity is defined by the gas velocity at which re-entrainment of the liquid collected in the device becomes appreciable. Each segment was fitted to a linear equation ddition the form of Equation 7 and its regressed coefficients e and f are presented in Tables 3A and 3B for FPS and SI units, respectively.

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Gas-Liquid Separators Sizing Parameter | Campbell Tip of the Month

These values are presented edjtion Table 1. In this TOTM, we will focus on the application of Souders-Brown approach in gas-liquid separators and present diagram, simple correlations and tables to estimate the Souders-Brown equation constant, K S the so editioj sizing parameter.

Can you tell me how the length of a Vertical Gravity Separator is sized once the diameter is calculated? As presented in the Appendix, substitution of expressions for the drag and aip forces in Equation 1, the maximum allowable gas velocity, V Gmaxwhich prevents entrainment of liquid is obtained. May 26, at 7: The curves for different droplet sizes shown in Figure 2 are fitted to a 3 rd order polynomial for droplet sizes of, and microns. Notify me of new posts by email.

Table 4 provides a summary of mesh pad characteristics and performance parameters. Possible typo in equation 5. What technique can I use to design a gas liquid separator for coupling analytical instruments e. Monitoring Standards monitoring is a free service designed for you who wish to be alerted of changes to or new editions of the standards required in your work. The maximum allowable superficial apii or other design criteria should be considered for other type mist extractor.

The mist extractor is the final gas cleaning device in a conventional separator. Notify me of follow-up comments by email. Ecition offers consulting expertise on this subject and many others. September 11, at 7: If the inlet liquid load is low, 1 above may not be important if the mist extractor can handle the liquid.

If we consider a spherical liquid droplet with a diameter of, D Pin the gas phase two forces editjon shown in Figure 1 act on it.

Figure 4 shows the location and function of a typical mist extractor in a vertical separator. August 7, at Knowing the actual gas flow rate through the vessel, one can use K S parameter to determine the maximum allowable gas velocity through the vessel and determine editin required separator diameter. September 18, at 8: The software there does what is not available elsewhere. The primary separation mechanism is liquid impingement appi the wires, followed by coalescence into droplets large enough to disengage from the mesh pad.

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References [] provide mesh pad examples. In the following sections, we will discuss three sources.

Its value depends on several factors including:. For the higher liquid load applications, i. Once the maximum, V Gmaxgas velocity through the vessel is determined by Equation 6, one can calculate the required minimum cross sectional area of vessel for gas flow by the following equation. This service is not available if you are a URL user where you do not log in with an email address.

This rate should allow all liquid droplets larger than 10 microns to settle out of the gas.

API Spec 12J

It would be more useful if nozzle sizing were also included. Typical mist extractor in a vertical separator 8t. There are two methods for sizing gas-liquid separators: The moment new editions of the standards you monitor are released, changes are made, or appendixes are published, you will be alerted by email.

Want to read more articles like this? The drag force, F Dis exerted by flow of gas and gravity force, F Gis exerted by the weight of droplet. For more information about such agreements, or product availability as hardcopy, please contact us by phone 67 83 87 spi or email salg standard. NOK 1 ,00 excl. Moshfeghian has presented invited papers in international conferences. March 3, at 2: