FC
PC
H S acid gas KO drum
H S/SO ratio control
LS
Acid gas from AGRU
M
MPS
Sour water to SWS unit
FC
SUM
FC
PC
NG (start up) LPS (start up)
LC
FC Ratio
FC
TC
BFW
Ratio
FC
Waste heat boiler
Oxygen
FC
Reaction furnace burner
Reaction furnace
Tail gas to No. 1 condenser
FC PC
Shift plant acid gas KO drum
LS
Acid gas from shift plant
Ratio
M
FC
Sour water to SWS unit
Air blower
Figure 5 The TGU with hydrogenation and hydrolysis reactors and the quench system
EPA, 1972. Environmental Protection Agency - Summary of the Clean Water Act . [Online] Available at: https://www.epa.gov/laws- regulations/summary-clean-water-act EPA, 2016. Environmental Protection Agency - Summary of the Toxic Substances Control Act. [Online] Available at: https://www.epa.gov/ laws-regulations/summary-toxic-substances- control-act European Commission, 2021. EU Emissions Trading Scheme (EU ETS), Revision for phase 4 (2021-2030). [Online] Available at: https://ec.europa.eu/clima/eu-action/eu- emissions-trading-system-eu-ets/revision- phase-4-2021-2030_en [Accessed 14 Nov 2021].
from the thermal section of the SRU. This also treats any COS in the feed to the SRU. All these features are implemented as part of the design features for this project. SO 2 -free flue gas from the stack and decarbonisation or carbon capture are currently very topical in the oil and gas industries, so RATE is offering advanced solutions to existing refineries and gas plants. Using oxygen enrichment in the SRU will reduce the flow rate, making it more economical to add other units to reduce SO 2 and CO 2 emissions. References Concawe, 2013. The IPPC directive, refinery BREF, and European refineries - a guidance manual. [Online] Available at: https://www. concawe.eu/wp-content/uploads/2017/01/ rpt_03-4-2003-01837-01-e.pdf [Accessed 13 Jan 2022]. EPA, 1970. Environmental Protection Agency - 50th Anniversary of the Clean Air Act . [Online] Available at: https://www.epa.gov/clean-air-act- overview [Accessed Dec 2021].
Mahin Rameshni mahin.rameshni@rate-engr.com
Stephen Santo Stephen.santo@rate-engr.com
www.decarbonisationtechnology.com
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