Technology

The Chevron Lummus Global (CLG) markets its own RSR (Residue Solvent Refining) SDA technology and integrates it within its LC-MAX^® residue upgrading package.

At the engineering and process level, RSR is a commercial variant of ROSE: CLG formally sub-licenses the ROSE technology from KBR, with KBR providing technology licensing, basic engineering design, and proprietary equipment for the SDA portion of every CLG RSR/LC-MAX project.

Within CLG's LC-MAX^® integrated residue upgrading configuration, RSR serves as the SDA backbone between two ebullated-bed LC-FINING hydrocracking stages:

1. LC-FINING Stage 1 — hydrocracking of neat vacuum residue at 48–60% conversion
2. ROSE SDA — 70–75% DAO lift from Stage 1 unconverted residue; pitch rejected with majority of metals
3. LC-FINING Stage 2 — DAO hydrocracked at 75–85% conversion

Overall vacuum residue conversion in LC-MAX exceeds 90%, catalyst consumption is reduced by 10–15% versus standalone high-conversion LC-FINING (due to metals rejection in pitch), and sediment levels remain below 200 wppm.​

References

1. KBR (Nov 19, 2019). KBR's Proprietary ROSE^® Technology Selected for Major Modernization Project at Refinery in India
2. Abdel-Halim, T., & Kellogg, R. F., Kellog Brown & Root, Inc. (2004). Chapter 10.2: The ROSE Process. In Handbook of Petroleum Refining Processes. McGraw-Hill
3. Baldassari M. & Mukherjee U., Chevron Lummus Global (2012). Paper AM-12-73: LC-MAX and Other LC-FINING Process Enhancements to Extend Conversion and On-stream Factor. Presented at the Annual Meeting of the American Fuel & Petrochemical Manufacturers (AFPM), March 11–13, 2012, Manchester Grand Hyatt, San Diego, CA
4. Dan Gillis. Residue Hydrocracking Solutions For Refinery Sustainability. RefComm Galveston April 29 - May 3, 2019.