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Capture and Control System

This project aims to design, develop, and safely demonstrate a barge-based capture and control system to reduce NOx, PM2.5, ROG, TACs, and DPM from the auxiliary engines and boilers of oil tankers. The system will be deployed at the Port of Long Beach, a disadvantaged community, and will feature a self-propelled spud barge equipped with exhaust capture, purification, carbon capture, solar power, fuel cells, batteries, and hydrogen storage. The barge will be powered by renewable or zero-carbon fuels to minimize greenhouse gas emissions. The project also includes installing a carbon capture unit to connect to the system’s purified output and demonstrate CO2 removal efficiency. It aims to meet CARB requirements and secure an executive order as an alternative control technology.

Vehicles/Equipment Funded:

  • A barge-based exhaust capture and control system that is equipped with spuds for anchoring the barge into position.
  • The system includes battery storage, hydrogen fuel cell, an exhaust capture system, and two STAX purification units.
  • The STAX purification units are comprised of a selective catalytic reduction system, a diesel particulate filter, and a reactive organic gas elimination system.

Lessons Learned:

  • Designing and operating the system must account for vessel-specific differences.
  • Clear communication with the ship’s engineering team before and during each visit is important to ensure effective emissions control.

Status Updates:

  • STAX received California Air Resources Board (CARB) executive orders to operate as a CARB Approved Emission Control Strategy (CAECS) for container vessels and roll-on, roll-off vessels. Use of a CAECS ensures compliance with CARB’s at berth regulation.
  • STAX is currently testing its system under a CARB-approved test plan to expand its CAECS approval to include control of multiple emission sources and operations on tanker vessels.

Technology:

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Vehicles / Equipment Status:​

Infrastructure Status:

Project Facts​

  • DATES: May 2021 – Active
  • GRANTEE: South Coast Air Quality Management District
  • PARTNERS: STAX Engineering, Port of Los Angeles, Port of Long Beach, Bay Area AQMD, Center for Environmental Research and Technology (UC Riverside), Tesoro Logistics Operations LLC, a subsidiary of Marathon Petroleum Corp., Coalition for Clean Air, Montrose Environmental, Q Corporation, Carbon America, American Bureau of Shipping (ABS)
  • GRANT NO.: G19-SCOT-01

Grant Amount​

  • CARB Contribution: $10,000,000
  • Matching Funds: $3,349,000
  • PROJECT TOTAL: $13,349,000

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