Sulfur recovery

The sulfur recovery catalyst series developed by Xunda have become the standards of sulfur recovery industry in China. There are more than 50 percent of SRU using Xunda SR catalyst in China; the company holds many patents in sulphur recovery industry.

Xunda’s experts can customize the most reliable solution of the highest yield rate and the lowest investment according to your technologies.

Series A sulfur recovery catalysts include: A918 sulfur recovery catalyst, A958 deoxidization protection sulfur recovery catalyst, A958B low-temperature sulfur recovery catalyst, A968TiO2/Al2O3 auxiliary agent sulfur recovery catalyst, A988TiO2 anti-sulfating catalyst, A999 (A999G low-temperature) sulfur tail gas hydrogenation catalyst, A777S02deoxidization catalyst and A888 selective oxygen catalyst.

The new reduction oxidation absorption ( ROA) technology is jointly developed by Shandong Changyi Petrochemical ( Subsidiary of ChemChina), Huangdao Br anch of Shandong Qilu Petrochemical Engineering Corporation and Shandong Xunda Chemical industrial Group Co., Ltd.

The ROA process includes acid gas partial combustion technology, two-stage Claus sulfur recovery technology, SO2 selective deoxidization technology, H2S selective oxidation technology, tail gas catalytic oxidation absorption technology, etc. Four patented technologies, including acid gas combustion advanced control technology, tail gas deep cooling technology and combination catalyst technology. Adopt ROA process can achieve 100% conversion ratio for H2S

Compared with traditional processes, this process has such advantages as short process flow, low investment, small space occupation, low operating costs and high recovery rate of total sulfurs, substantially reducing the emissions of carbon dioxides.