API 12J 8TH EDITION PDF

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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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May 30, at 2: Please note that extra delivery cost and 21j time may apply for products ordered as hardcopy, as the products must first be shipped from our suppliers overseas.

The agreement lasts for three years, and the fee is charged once per year. Want to read more articles like this? We will consider both vertical and horizontal gas-liquid separators. Each segment was fitted editin a linear equation in 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.

Separators outside the scope of this specification include centrifugal separators, filter separators and desanding separators. For detail of calculations procedure refer to chapter 11 of reference [5]. Most mist extractors have limitations on the amount of entrained liquid droplets that can be efficiently removed from the gas, thus the importance of the gas gravity section to remove the liquids to an acceptable level upstream of the mist extractor.

December 28, at 4: For the higher liquid load applications, i. March 3, at 2: April 22, at 9: The software there does what is not available elsewhere.

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

Some folks want its length to be less than 4 feet. Recieve new post updates: August 25, at 3: August 7, at 8: Leave a Editiln Cancel reply Your email address will not be published. September 11, at 7: The applications optimize the dimensions to achieve the lowest cost vessel. He has 40 years teaching experience in universities as well as for oil and gas industries.

As presented in the Appendix, substitution of expressions for the drag and gravity forces in Equation 1, the maximum allowable gas velocity, V Gmaxwhich prevents entrainment ediiton liquid is obtained.

API Spec 12J

He is the author of aoi Tips of the Month and develops technical software for PetroSkills. Vane packs, like mesh pads, capture droplets primarily by inertial impaction. 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]. Moshfeghian is a senior member of AIChE and has published more than technical edution on thermodynamic properties and Process Engineering.

If we consider a spherical liquid droplet with a diameter of D P in the gas phase two forces as shown in Figure 1 act on it. Historically the Souders-Brown equation has been employed as it can provide reasonable results and is easy to use, but has shortcomings in terms of quantifying separator performance. Schematic of the forces acting on a liquid droplet in the gas phase [5].

Mist extractor capacity is defined by the gas velocity at which re-entrainment of the liquid collected in the device becomes appreciable. May 26, at 7: This rate should allow all liquid droplets larger than 10 microns to settle out of the gas.

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February 11, at 8: The drag force, F Dis exerted by flow of gas and gravity force, F Gis exerted by weight of droplet. Please contact me to discuss a possible consulting project with your company regarding the design of gas-liquid separators. In the case of demisting cyclones, the vendor should be consulted in regards to performance for the current operations of interest. Notify me of new posts by email.

Notify me of follow-up comments by email. Equation 6 is called Souder-Brown equation and K S is referred to as the design parameter.

If the horizontal gas velocity profile is expected to be fairly uniform would need more details to determine this then 2 might not be a concern either. Typical mist extractor in qpi vertical separator [5].

The drag force acts to entrain the liquid droplet while the gravity force acts to pull it down and separating it from the gas phase.

Along with inlet devices. NOK 1 ,00 excl. The Souders-Brown method is limited in that it is based on the average droplet size, but cannot quantify the amount of liquid droplets exiting the gas gravity section.

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