What are the advantages of using a chemical injection quill for dosing chemicals on crude column overhead system? What are the process parameters need to be specified for a quill?
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10/05/2016
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Sudhakara Babu Marpudi, Dangote Oil Refinery Company, m_sudhakarababu@yahoo.com
Quills in dosing chemicals help in releasing the Chemicals in the optimum locations as well as optimizing the chemical consumption, towards ensuring higher efficiency in corrosion protection. Quills are provided in the water wash systems also these days, for washing off the salt deposits in the overhead piping and prevent under deposit corrosion.
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04/05/2016
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Mohamed Banjar, SA &PRC, banjarms@yahoo.com
ِAdvantage of the chemical quill:
good chemical distribution
keep the chemical away from direct contact of the inner pipe wall
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04/05/2016
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NS Murthy, Suez, murthy.ns.ext@suez.com
In addition to the inputs given by other refining expert, chemical service providers like GE can specify the type of quill, spray angle, mist dia, dilution ratio, optimum dosing based on salt point and dew point, location of quill, supplemental wash water need, if any, selection of right chemistry for both filmer and neutralizing agent, etc. Pl contact your nearest GE representative to assist on right quill design and location for hassle free operation of CDU OH system.
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03/05/2016
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Eric Vetters, ProCorr Consulting Services, ewvetters@yahoo.com
Proper use of quills improves the distribution of the corrosion inhibitors and neutralizer into crude overhead systems. This will improve performance of the chemistries and help avoid some potential problems, such as localized corrosion that can occur if concentrated filmer contacts the pipe wall or neutralizer is poorly dispersed.
Typically the chemical supplier can specify and provide the quill that they need for their applications. One thing to consider is the use of carrier streams to dilute the chemistry and increase the volumetric flow through the quill for improved dispersion. For filmer this is typically naphtha. For neutralizer steam is often used to help atomize the neutralizer and speed up the vaporization process.
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