SCHMIDTSCHE SCHACK develops, engineers and manufactures heat transfer solutions for the chemical, petrochemical, metallurgical, and refining industries. SCHMIDTSCHE SCHACK turns more than 100 years of experience into reliable and efficient products for the most sophisticated and challenging demands.
SCHMIDTSCHE SCHACK
TLEs
Transfer Line Exchangers (TLE) are used in the thermal cracking process of various gaseous and liquid feedstocks. Our partner Schmidtsche Schack is the only current company with a product portfolio for all commercial ethylene processes.
The Transfer Line Exchanger is at the heart of the cracking process. By positively influencing the ethylene yields and maximizing the energy recovery, it contributes significantly to the profitability of every ethylene plant.
Depending on the feedstock Schmidtsche Schack TLEs provide a high selectivity and a low share of undesired by-products.
Syngas Coolers
Schmidtsche Schack is engineering and manufacturing syngas cooling solutions for the world’s leading gasification process owners. These systems are installed in many of today’s most advanced gasification and partial oxidation plants worldwide.
We are partnering with clients and developers closely to development the Syngas Cooler. The equipment arrangement and requirements pertaining to the syngas composition must be incorporated into the final reactor and syngas cooler design. The closer and the more open the dialogue – the better the result.
Gasification solutions designed by SCHMIDTSCHE SCHACK stand for:
- Technology know-how
- Individual solutions
- Turnkey project availability
- Process design for special applications
Application in processes for gasification and partial oxidation of feeds such as natural gas, oil, coal, petcoke, biomass, municipal solid waste or black liquor – to name just some – are within the core competency of Schmidtsche Schack’s Syngas Cooler solutions.
Air Preheaters
SCHACK® Air Preheaters are process-optimized heat transfer solutions for sludge incineration, carbon black plants and gasification.
In fuel-fired industrial heating processes, one of the most effective ways to improve efficiency and productivity is to preheat the combustion air which reaches the burners.
The source of this thermal energy is the exhaust gas flow exiting the process at increased temperatures.
A heat exchanger located in the exhaust duct can extract a large part of the heat energy in the flue gases and then releases it to the incoming combustion air.
Many processes produce soiled or corrosive exhaust gases which clog or attack heat exchangers.
SCHACK® Air Preheaters are highly resistant to these conditions.
Process Gas Boiler
Generating high-content hydrogen syngases is the core element of sustainable and environmentally friendly production plants.
The comprehensive solutions of SCHMIDTSCHE SCHACK for steam reforming plants cover the most critical components for high temperature high pressure application, starting with cooling of the synthesis gas to the desired temperature and subsequently generating steam for the process.
Depending on the process gas requirements, the gas downstream of the process gas boiler can be used for producing superheated steam or preheated boiler feed water
With our key equipment and related services we ensure a reliable and efficient operation.
Schmidtsche Schack Process Gas Boilers are characterized by specific design features:
- thin, flexible or super flexible tube sheets
- full penetration, crevice-free tube to tube sheet welding to
prevent crevice corrosion
- two bypass designs to control gas outlet temperature:
a conventional “hot” bypass design or an improved
“cold” bypass design for operation free of metal dusting
- fire tube design
- single- or twin-compartment design
- refractory lined gas inlet chamber
- inlet tube sheet is protected by ferrules and refractory lining
- triangular tube pitch
Process Gas Cooler
SCHACK® Process Gas Coolers are heat transfer solution for mono and dual pressure nitric acid production plants.
Schmidtsche Schack develops and puts into service reliable, maintainable heat transfer solutions for catalyst cooling and heat recovery to ensure optimized plant efficiency.
Depending on the specific plant parameters, the fitting heat transfer systems for nitric acid plants to evaporate water, produce superheated steam and enable tail gas preheating are applied.
Waste Heat Boilers are equipped with a burner hood and catalyst basket. Additional equipment such as economizer, steam drum and piping complete the superior solution offering from SCHMITDSCHE SCHACK
Waste Heat Recovery Unit
SCHACK® Waste Heat Recovery Systems are our solution to save resources by recovering the energy utilized and then reusing it.
Flue gas heat recovery systems make industrial processes more efficient by capturing and re-using heat energy which would otherwise have escaped into the environment.
All furnaces which burn fuel to produce heat also create exhaust gases and these need to be routed to the outside. However, as these gases are very hot, a large amount of energy can be recovered for process requirements or steam generation.
Steam Superheater
SCHMIDT’SCHE® Steam Superheaters are heat transfer solutions for maximizing the efficiency of industrial plants.
Saturated steam exiting the steam drum may need to be superheated depending on the individual process characteristics.
In order to achieve this, a superheater is installed e.g. downstream of a process gas boiler or a syngas cooler.
SCHMIDTSCHE SCHACK applies dedicated designs for steam superheaters to achieve optimized overall plant economics.
Quench Boiler
Downstream of the carbon black reactor in which the quench process takes place, the SCHACK® Quench Boiler is directly positioned within the production process.
The main function is to generate high-pressure steam by cooling down process gas from 1,400° C to 1,000° C (2,552° F to 1,832° F). The cooling temperature window is adjusted to the inlet temperature of the air preheater connected downstream.
Waste Heat Boiler
SCHMIDTSCHE SCHACK Waste Heat Boilers use the waste heat formed as a by-product of another process (e.g. within the sulfur recovery (Claus) or sulfuric acid process) and convert it into useful and effective thermal energy. Waste heat boilers contribute to the improvement of thermal efficiency, energy saving as well as environmental protection. The SCHMIDTSCHE SCHACK waste heat boilers are specially designed for tough process conditions appearing within the Claus or sulfuric acid process.
One of the biggest challenges with these processes is to maintain the Waste Heat Boiler gas outlet temperature constant regardless of the load. This can be ensured with the support bypasses on the gas or steam side, which are provided with appropriate control devices.
SCHMIDTSCHE SCHACK Waste Heat Boilers are individually designed to the process requirements and provide special design features for the various operating conditions and applications.
Fired Heater
SCHACK® Fired Heaters are designed to fulfil even the highest demands. Solutions have to be resistant in the challenging environment of chemical and petrochemical plants. Very high temperatures, aggressive media and constant outlet temperatures as well as even und varying load conditions, just to name a few.
The customized fired heater solutions are based on specific design features, to constantly counter these challenges. Unique requirements need unique designs. The proprietary SCHACK® Fired Heater design is the answer for even the most specific and challenging applications.
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