Crude Oil Quality Association
May 31, 2001
The meeting agenda was distributed to those in attendance. Results to Date of Additive Survey
- The survey on additive components was distributed in March and twelve replies were received. A summary of the replies will be available to all COQA members after the respondents have reviewed it. Harry Giles, COQA facilitator, shared a few observations on the survey. Once the summary is finalized, it will be used to start a dialogue with additive manufacturers not yet represented in the COQA and with crude oil producers. Methanol Alternatives for Hydrate Inhibition
- Dr. Lynn Frostman of Baker Petrolite shared information about her company’s new hydrate inhibitor which is intended to be utilized as a methanol substitute. These chemicals allow hydrates to form but keep them in small, well-dispersed, flowing form. Dosages are very low (Low Dosage Hydrate Inhibitors – LDHI) which has several advantages; cost, storage and transportation, and easier injection. LDHI’s have been successfully used in deepwater Gulf of Mexico, in the North Sea and onshore in Canada.
There are some downstream concerns with LDHI’s; such as the impact on the Desalter, the Biotreater and overhead corrosion. Baker Petrolite has done some testing and, so far, the adverse effects have been minimal or, in the case of corrosion, treatable. The dilution effects of multiple crude streams being commingled prior to reaching the refinery, coupled with the low application rates, tend to minimize the amount of LDHI entering the refinery. Another concern is the possible impact on end products. This issue is under investigation with bench scale experimentation and perhaps a pilot refinery test. Jet fuel, the government's specific jet requirements such as JP8, and diesel are the products being investigated.
Baker Petrolite welcomes input from the industry.
Baker Petrolite LDHI Presentation CCQTA Additive Report
– The CCQTA has had an additive study group for some time. The goal of the group was to establish a standard, analytical test method to track and detect chemical additives with the further objective of incorporating that method into new additive testing and development. A protocol for the test has been designed and work on developing the full, standardized method began last year. Products in the future will most likely have even tighter specifications than now and there will continue to be considerable incentive to improve the quality of the crude oil feedstock. The protocol developed uses techniques that are readily available at additive supplier development labs and the Additive Screening Project Group expects widespread usage of the method when it is finalized.
If you are interested in a copy of the summary report, please contact the COQA facilitator.