2018 Dur LTB RK 15 Regenerative Thermal Oxidiser

Manufacturer: Durr

Type: LTB RK 15

Type of Machine : Regenerative Thermal Oxidiser (RTO)

Year of Manufacture: 2018

Complete internal rebuild: 2024 and 2025

1. Capacity – SCFM vs Nm³/h

The RTO is designed to operate efficiently across a wide flow range, and the official design envelope from the manufacturer is:

• 3,000 – 15,000 Nm³/h

This matches the customer’s VOC report, which shows:

• Combined extraction: 13,000–14,000 Nm³/h
• Maximum recorded: 15,000 Nm³/h

The unit will not be oversized for their process and will maintain autothermicity depending on solvent load.

2. Chamber Design

The RTO is a 3‑chamber ROxiTHERM system, as confirmed in the original 2018 LTB quotation.

This means:

• No buffer tank required
• No plenum required
• Stable emissions during valve switching
• No need for simulated 3‑chamber operation

The system also includes a hot‑gas bypass, which was fully upgraded in 2019.

3. Ceramic Media & Thermal Efficiency

The unit uses high‑efficiency honeycomb ceramic blocks, consistent with Dürr/LTB specifications.

Thermal efficiency is approximately 95%, which is typical for this model.

The ceramic beds were inspected and partially rebuilt in 2024.

4. Layout, Footprint & Weight 

From the original LTB quotation:

• Length: 8.5 m
• Width: 4 m
• Height: 4.5 m
• Weight: 28 tonnes

General arrangement drawings can be provided.

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