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Antalffy L.P.,Fluor Corporation | Miller G.A.,Fluor Corporation | Kirkpatrick K.D.,Fluor Corporation | Rajguru A.,Fluor Corporation | Zhu Y.,Fluor China Engineering and Construction Co.
Procedia Engineering | Year: 2015

Heavy wall reactors and large diameter pressure vessels usually face unique challenges in their erection onto their foundations at the jobsite. Today, 800 ton to 1,500 ton reactors and or large diameter vessels with diameters ranging up to 15 meters are common in the refining industry. These pressure vessels are usually fabricated in shops dispersed globally and require unique heavy duty equipment for their safe handling, transportation and erection. The challenge is to find a safe, efficient and cost effective solution based upon the limitations of the equipment, job site and the lift equipment available for erection. Equipment for the handling heavy reactors and large diameter pressure equipment is usually scarce, expensive. Planning well in advance of the lift date is required. Careful consideration must be given to the choice and design of attachment to the pressure vessels used for the lift to ensure that the vessel and lifting components are not overstressed during the lifting process. This paper identifies the types of evaluations that must be performed to determine the stresses in the vessel and lifting attachments during the lifting. The paper also discusses different types of lifting lugs that may be attached to each end of the vessel either by bolting or welding and discusses the pros and cons of each. The paper also provides an example of a finite element analysis (FEA) of a top nozzle, a FEA of a pair of lifting trunions and a FEA of welded on lifting lugs for buried pipe. The intent of the paper is to outline the effects on the vessel due to different types of lifting configurations in combination with the lifting parameters. This paper is not intended to provide guidance on how to design lifting lugs. © 2015 The Authors. Source


Yan L.-J.,Fluor China Engineering and Construction Co. | Jiang L.-R.,Shanghai Design and Research Institute for Environment Co.
Chung-kuo Tsao Chih/China Pulp and Paper | Year: 2011

Because of low biodegradability of paper industry waste water, hydrolysis and acidification process is widely applied in paper industry waste water treatment. Aiming at different waste water from different material sources and processes, through experiment and analysis of the collected operation data, some engineering data and operating experiences for application of hydrolysis and acidification process in waste water treatment of pulp and paper industry are summarized. Source


Antalffy L.P.,Fluor Corporation | Miller G.A.,Fluor Corporation | Kirkpatrick K.D.,Fluor Corporation | Rajguru A.,Fluor Corporation | Zhu Y.,Fluor China Engineering and Construction Co.
International Journal of Pressure Vessels and Piping | Year: 2016

Lifting attachments for the erection of large diameter and heavy wall pressure vessels require special consideration to ensure that their attachment to their vessel shells or heads do not overstress the vessel during the erection process when lifting these from grade onto their respective foundations. Today, in refinery and petrochemical services, large diameter vessels with diameters ranging up to 15 m and reactors with lifting weights in the range of 700-1400 tons are not uncommon. In today's fabrication market, these vessels may be purchased and fabricated in shops dispersed globally and will require unique equipment for their safe handling, transportation and subsequent erection. The challenge is to design the lifting attachments in such a manner that the attachments provide a safe, cost effective and effective solution based upon the limitations of the job site lift equipment available for erection. Such equipment for the transportation and subsequent lifting of large diameter and heavy wall pressure equipment is usually scarce and quite expensive. Planning ahead, well in advance of the lift date is almost a mandatory requirement.Usually, the specific parameters of the vessel to be lifted and the lifting equipment available at the site will dictate the type of lifting attachments to be designed for the vessel. Once the type of vessel attachment has been chosen, careful consideration must be given to the design of attachments to the pressure vessel in consideration to ensure that the vessel and lifting components are not overstressed during the lifting process. The paper also discusses different types of lifting attachments that may be attached to each end of the vessel either by bolting or welding and discusses the pros and cons of each. The paper also provides an example of a finite element analysis (FEA) of a top nozzle, a FEA of a pair of lifting trunnions and a FEA of welded on lifting lugs for buried pipe. The purpose of the paper is to outline the effects on the vessel due to different types of lifting attachments in combination with the lifting parameters. It is not the intent of the paper to provide guidance on lifting lug design. © 2016 Elsevier Ltd. Source


Yu F.,Fluor China Engineering and Construction Co. | Song Q.,Fluor China Engineering and Construction Co. | Zheng B.,Fluor China Engineering and Construction Co. | Huang L.,Fluor China Engineering and Construction Co. | Zhan Y.,Fluor China Engineering and Construction Co.
Shiyou Huagong/Petrochemical Technology | Year: 2014

The sources and types of refinery sour water (also known as sulphur-bearing waste water) were introduced and three typical stripper unit process flows for treating the sour water were briefly described, namely Low Pressure Single Stripper process, High Pressure Two-column Stripper process and High Pressure Single Stripper with Side-draw process. Low Pressure Single Stripper with Pumparound process has been the prevailing configuration employed internationally nowadays which is, however, less common in China. Design parameters for all the main pieces of equipment in the process were studied and discussed in process sequence, including sour water flash drum, sour water storage tank, sour water stripper, pumparound loop and so forth. It is paramount to determine appropriate and optimal process parameters during design phase for an efficiently and smoothly operated sour water stripper unit. Source

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