The hallmark "Made by S+C" is a worldwide guarantee for outstanding components and solutions in high-grade steel: corrosion-resistant, heat-resistant and wear-resistant, from semi-finished products to ready-to-install components and systems.

Whether steam cracker, steam reformer, or DRI plant – S+C’s Advanced Engineering Services combine profound material expertise with industry-specific know-how. Every service is as individual as our customers’ requirements – ensuring maximum efficiency, safety, and performance in operation.

Superior quality – this is the constant challenge that S+C sets itself. Direct contact with our customers, and collaboration with respected research institutes and universities worldwide, help our experts develop market-oriented innovations.

S+C Competence

Products for Steam Cracker

SCOPE® Fusion HT E

The steam cracker tubular solution of the future

The steam cracker is where the value chain starts in your ethylene and propylene production facility. Integrated into your furnace, SCOPE® Fusion HT E provides a highly reliable and long lasting operation. It ensures the maximum efficiency of your steam cracker while at the same time helps to achieve the set climate objectives, i.e. lower carbon footprint.

Based on many years of experience, extensive research and comprehensive testing, S+C continuously optimizes its product range. Our objective is to achieve maximum energy efficiency, the longest possible operational intervals, and minimum outage for your plant.

With SCOPE® Fusion HT E, we have achieved a leap forward to an entirely new level.

It combines the well-proven high quality alloy Centralloy® HT E, with a three-dimensional tube design. This effectively slows down the coke deposition process and optimizes the cracking of the hydrocarbons in the steam cracker.

Strengthen the heart of your plant

We see it as our mission to keep your “heart” beating and take its performance to the next level.

Intelligent profile meets superior material

SCOPE® Fusion HT E is the right choice for many reasons

The design goals for the SCOPE® Fusion HT E tube were particularly extensive. Hence, they specifically aimed to avoid the known shortcomings of existing profiled tubes. The objective was to achieve the highest possible plant availability and reduce greenhouse gases while optimizing the energy efficiency of a steam cracker equipped with the SCOPE® Fusion HT E tube at the same time.

The benefits, such as significantly increased selectivity and improved ethylene yield, add up to a quick return on investment for the operator.

SCOPE® Fusion HT E helps you get the most out of your steam cracker!

Controlled tangetiual flow, minimized pressure drop
Extended operational cycles
Higher ethylene yield
Increased aboslute velocity
Reduction of the CO2 footprint
Centrifugally cast tubes rather than forged (wrought) tubes
Perfect complement to Centralloy® HT E
Tailor-made for your plant

Multiple times longer production runs

During operation, SCOPE® Fusion HT E tubes facilitate a relatively low tube metal temperature, as well as, low-pressure drop. Whereby the temperature across the tube shell is uniformly distributed. In combination with the exceptionally metallurgy of Centralloy® HT E, both coking and carburization is greatly inhibited.

The convenient result, to name a few only, are: less decoking cycle’s, longer coil life time, lower maintenance costs, less wear and tear on the plant – and much longer uninterrupted operating time.

Centrifugally cast tubes rather than forged tubes

S+C looks back on vast experience in the production of centrifugally cast tubes. Those cast materials have properties that make them particularly suitable for the use in steam crackers.

In combination with the unique SCOPE® design, it provides for better heat transfer, lower tube metal temperatures, and more uniform gas temperature distribution than with conventional tubes, as well as, a low pressure drop within the tubes.

Profile Tube technological ”Leap forward”

Radical innovative new ways of thinking made it possible to develop the mechanical production process for SCOPE® Fusion HT E tubes and the unique profile itself. The technology offers clear advantages compared with other tubes on the market. The SCOPE® profile is designed to achieve the target temperature inside the tube faster and to distribute it more uniformly, which has a positive effect on both the selectivity and the yield.

This is the only tube that combines the innovative SCOPE® profile with the Centralloy® HT E material. This well proven material forms an extremely stable protective layer on the inner wall of the tube and acts against catalytic coke formation as well as carburization of the tube material.

Controlled flow, minimized pressure drop

The SCOPE® Fusion HT E tube optimizes heat transfer from the outer surface of the tube into the feed flow and improves the flow dynamics of the gas stream. This is controlled by a specifically designed radial flow pattern.

Increased selectivity and ethylene yield

Measurements have shown that the simultaneous combination of high heat transfer and a balanced gas temperature inside the tube results in significantly higher product selectivity. Together with the optimized flow rate in the SCOPE® Fusion HT E tube and the greatly extended decoking intervals, it provides major operational and economic benefits.

SCOPE® Fusion HT E

The benefits for your steam cracker at a glance

SCOPE® Fusion HT E is earning top marks for performance and endurance and has distinguished itself as by far the best of today‘s steam cracker tube systems.

Longer operational cycles, less decoking

Lower tube wall temperatures
Balanced temperature profiles (cross-section / circumference)
Minimized temperature variations between the “peaks” and “troughs” within the tube
Shorter residence time of cracking gas at the tube wall

Increased productivity

Sustained improvement in heat transfer
Better distribution of heat over the entire tube cross-section
Minimized temperature variations between the “sunny” and “shady” areas within the tube
Higher selectivity than with bare tubes
Higher operating profit

Didn’t find what you were looking for?