Gas Technology Products Announces the Sale of Two LO-CAT® Systems to Shaanxi Yanchang Petroleum Group for Removal of Hydrogen Sulfide from Refinery Offgas

Schaumburg, Ill., May 2007—The Gas Technology Products division of Merichem Chemicals & Refinery Services is currently designing two refinery off gas treatment systems for Shaanxi Yanchang Petroleum Group, to be installed at their Yangzhuane Refinery and at their Yanlian Refinery. The detailed design and supply of the equipment packages at Yangzhuane and Yanlian will be completed by Sinopec Engineering Institute and Beijing Petrochemical Design Institute respectively.

Both of the off gas treatment systems will treat a combination of amine acid gas and sour water stripper off gas. The required sulfur removal capacities are 12.2 TPD at Yangzhuane and 16.0 TPD at Yanlian, and will be achieved with the LO-CAT® Hydrogen Sulfide Oxidation Process. The LO-CAT unit will reduce the H2S levels to less than 10 ppmv. A selective catalytic reduction unit will be utilized destroy the ammonia from the sour water stripper off gas while meeting the NOx emission requirements.

Jackson International Inc. is the MCRS-GTP regional sales agent for Oil & Gas and Refinery projects in China. Jackson International Inc. Beijing office: No. 1002 Block A, Qiancun Commercial Mansion, Building 2, Anzhenxili Wuqu, Chaoyang District, Beijing, China 100029. Tel: 86-10-64430838, fax: 86-10-64430839, contact person: Jack Zhang, email: jack.zhang@jackson-international.com.

Gas Technology Products, a division of Merichem Chemicals & Refinery Services LLC, has more that 28 years of H2S removal experience and offers a complete portfolio of H2S removal processes, systems and products to fit a wide range of applications. Additional information is available at www.gtp-merichem.com.

Merichem Chemicals & Refinery Services LLC, a wholly owned subsidiary of Merichem Company, provides a diversified portfolio of products and services including soda chemicals to the pulp and paper industry, caustic management services to the coal tar and petroleum refining industry, copper naphthenate to the wood treatment and preservative industry, naphthenic products to the chemical and petrochemical industry, as well as an expansive offering of process technologies utilizing the non-dispersive mass transfer FIBER-FILM™ Contactor for the treatment of hydrocarbon streams. To learn more about these and other products and services offered by Merichem Chemicals & Refinery Services LLC, visit www.merichem.com. The Merichem family of companies provides a diversified portfolio of products and services including naphthenic acids, copper napthenate, sodium hydrosulfide, and process technology to the chemical, refining, and pulp and paper industries worldwide.