WASTE GASIFICATION TECHNOLOGY

Monetise low-value refinery waste by converting it into syngas.

Shell Catalysts & Technologies’ Residue and Natural Gas Gasification process upgrades the bottom-of-the-barrel and other low-value streams into synthesis gas (carbon monoxide and hydrogen). Refineries can use synthesis gas, or syngas, for integrated gasification combined-cycle (IGCC) power generation (with optional carbon dioxide capture); hydrogen via carbon monoxide shift and other applications such as chemicals manufacturing.

Why Shell Catalysts & Technologies

We can support your project throughout its life cycle including:

• Design and engineering;
• Commissioning and start-up;
• Experience transfer;
• Master planning;
• and Training.

In the Shell Gasification Process, hydrocarbon chains are partially oxidised in a refractory-lined reactor. This results in a high syngas yield and generates heat.

The unit uses special burner and reactor designs to achieve high thermal efficiency and low soot levels. The syngas is cooled in an adjacent syngas effluent cooler, which produces high-pressure saturated process steam that can help to lower plant operating costs.

Shell Gasification Process technology

Shell Gasification Process technology can process a wide range of feedstocks and waste, including highly viscous, high-sulphur residues. It also offers:

• Low oxygen and fresh water consumption;
• Low soot formation (<1 mg/Nm³ of soot in raw syngas);
• Enhanced syngas yield (typically >2,600 Nm³ syngas per tonne of feedstock);
• and Enhanced thermal efficiency through the syngas cooling process (with high-pressure steam generation).

The global Shell Gasification Process technical service centre provides dedicated life-cycle support for lifetime assurance, including design, simulation, start-up assistance and training, and long-term operational assistance. We facilitate global technology-user conferences that aim to build user communities and accelerate learning.

Process Low-Value and Heavy Materials

Use the Shell Gasification Process to handle heavy high sulphur viscous residues such as thermal cracked residue, Solvent de-Asphalter residue (DoA), the bottom streams of Ebullated bed units, and heavy fuel oil from the fluidised catalytic cracker (FCC) unit.

Reduce Operating Costs and Improve Margins

Refiners can use gasification to reduce operating costs through the production of high-pressure saturated process steam, while petrochemical companies can convert refinery residue to syngas for the production of ammonia, methanol, oxo-alcohols, and other petrochemicals to increase margins.