Siemens in the USA

Siemens AG (NYSE: SI) is a global powerhouse in electronics and electrical engineering, and operates in the industry, energy and healthcare sectors. For more than 160 years, Siemens has built a reputation for leading-edge innovation and the quality of its products, services and solutions. With 405,000 employees in 190 countries, Siemens reported worldwide sales of $104.3 billion in fiscal 2009.

With its U.S. corporate headquarters in Washington, DC, Siemens in the USA reported sales of $21.3 billion and employs more than 60,000 people throughout all 50 states and Puerto Rico.

Siemens is the primary equipment provider for Texas Clean Energy Project’s gasifiers, power island and controls, including a “twin pack” of SFG-500 gasifiers, a state-of-the-art SGT6-5000F combustion turbine, and an advanced SPPA-T3000 control system. Siemens will also supply O&M services for the facility.

Siemens kicked off TCEP’s Front End Engineering Design Study (FEED) on June 30, 2010 with FEED participants Fluor Corporation, and Selas Fluid Processing Corporation, a Linde Group subsidiary.

Gasification offers one of the cleanest and most flexible ways of converting coal and low-grade fuels into high-value products – electricity, chemicals or synthetic fuels. Combining gasification with advanced gas turbines in Integrated Gasification Combined Cycle (IGCC) power plants results in a highly efficient technology for coal-based power generation. Gasification can offer environmentally friendly plants with lower emissions and the combination with readily available technology for CO₂ Capture and Storage (CCS).

The Siemens coal gasifiers, which are 18 meters long with an outside diameter of 4.3 meters and a weight of 220 tonnes, are among the world’s most flexible. They are capable of gasifying up to 2000 tonnes of coal daily. In the gasification process hard coal, lignite and other substances such as biomass, petcoke and refinery residues will be converted to syngas, and environmental pollutants such as sulfur and carbon dioxide subsequently removed. The syngas can then be used for eco-friendly power generation in integrated gasification combined cycle (IGCC) plants or as a raw material in the chemical industry, for example in the production of synthetic fuels.

Siemens Gasifier
Siemens Gasification Test Center
in Freiberg, Germany

The Siemens SFG-500 coal gasifier is characterized by its straightforward design, high availability level, low servicing requirements, and fast startup and shutdown. Work is already in progress on gasifiers in the next higher capacity class. The entrained-flow Siemens Fuel Gasifier (SFG) is able to convert a large range of fuels and is ideally suited for lower-rank fuels like lignite with high ash and moisture content. The technology with its unique cooling screen design and the efficient dry-feeding system is based on more than 30 years of continuous product development.

The Siemens Gasification Test Center is located at our headquarters in Freiberg, and is one of the most comprehensive gasification test facilities in the world. More than 60 different fuels have been tested so far, which gives Siemens a rich body of experience.

The centerpiece of the Siemens Gasification Test Center is a 5 MWth gasification reactor which is complemented by a range of feedstock preparation systems and related gas cleaning process units. At the Siemens Gasification Test Center, a broad range of test conditions can be simulated and results produced to support plant design and permitting activities.

The Linde Group

The Linde Group is a world leading gases and engineering company with almost 48,000 employees working in more than 100 countries worldwide. In the 2009 financial year it achieved sales of EUR 11.2 bn. The strategy of The Linde Group is geared towards sustainable earnings-based growth and focuses on the expansion of its international business with forward-looking products and services. Linde acts responsibly towards its shareholders, business partners, employees, society and the environment – in every one of its business areas, regions and locations across the globe. Linde is committed to technologies and products that unite the goals of customer value and sustainable development.

On the TCEP project, Linde will be designing and costing the handling of the synthesis gas produced by the Siemens gasifiers, including, shift and gas cooling, Rectisol® wash unit, cryogenic nitrogen wash unit, CO2 compression, mercury removal, sulfuric acid production, ammonia production and urea production. Linde will also design an air separation unit for the delivery of nitrogen and oxygen to the gasifiers and combustion turbine.

Selas Fluid Processing Corporation, a subsidiary of The Linde Group, is headquartered in Blue Bell, Pennsylvania. The Company provides combustion-based technologies for hydrocarbon processes throughout the world. Core products and capabilities include complete hydrogen, synthesis gas and air separation plants, process furnaces, fired heaters, cryogenic vaporizers, and thermal oxidation systems for the refining, petrochemical, pharmaceutical, gas and chemical industries.

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