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PATENT GRANTED TO BLACK & VEATCH PRITCHARD FOR DEGASIFICATION.

Black & Veatch Pritchard, Inc. (BVPI), a subsidiary of Black & Veatch Corporation, has announced the commercial availability of a new liquid sulfur degasification technology patent, the Mechanical Agitation (MAG*) degassing system concept.

David Stevens, BVPI's Sulfur Recovery Technology Manager, said "The MAG degassing system concept was developed to utilize the benefits of degassing in the presence of air without the use of a costly and troublesome compressed air source. The MAG technology also eliminates the hazards of liquid sulfur spray systems, which need liquid sulfur free fall. No chemical agents, catalysts, or additives are required."

Tests show MAG degassing rate constants nearly identical to traditional compressed air sparging. Thus, the recognized standard of less than 10 parts per million (ppm) weight total hydrogen sulfide can readily be achieved with similar residence times and without the constraints of conventional air sparge or sulfur recirculation technologies.

Developed over a five year period, the MAG technology represents further refinement of the previous generation of degassing systems BVPI has designed and installed at major refineries. The largest of these, located in Jamnager, India, is currently degassing 2,000 tons per day (tpd) of liquid sulfur to less than 10 ppm weight total hydrogen sulfide. The project, a Cold Bed Absorption (CBA) Sulfur Recovery facility, was constructed for Reliance Petroleum Limited.

Degassing systems have become a standard feature in most oil and gas facilities throughout the world to meet safety regulations that govern the transport of molten sulfur. By degassing the sulfur, the hazards of liberating the inherent residual hydrogen sulfide within the produced sulfur are mitigated.

Within the United States, where presently there is no transportation requirement for degassing, many energy companies are now beginning to explore degassing system implementation to address the issue of fugitive hydrogen sulfide air emissions from their facilities. The BVPI MAG system is expected to find a favorable market in the U.S. due to competitive capital cost, reduced operating cost and simplicity of operation.

About Black & Veatch Black & Veatch Corporation is a leading global engineering, construction and consulting firm specializing in infrastructure development in the fields of energy, water and information. Black & Veatch serves its clients with conceptual and preliminary engineering services, engineering design, procurement, construction, financial management, asset management, information technology, environmental and management consulting services. Headquartered in Kansas City, Mo., the employee-owned company has more than 90 offices worldwide. Black & Veatch is ranked 63rd on the Forbes "500 Top Private Companies in the U.S." listing for 2000.

For more information, visit http://www.bv.com or call (913)458-7324.
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Publication:Industrial Environment
Date:Dec 1, 2001
Words:423
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