Packaged air separation.

Transcription

1 Linde Engineering: Air separation Standard and modularly designed plants. Packaged air separation.

2 02 Linde Engineering: Air separation Contents. 4 Packaged air separation plants 5 The process 6 Features of packaged plants Product range of nitrogen plants Product range of oxygen plants 8 In-house manufacturing of key components Pre-fabricated equipment 10 Sophisticated plant control Project execution 12 Contact

3 Linde Engineering: Air separation 03 The Linde Engineering Division is a leading international manufacturer of capital goods and equipment. Linde Engineering s areas of activity cover design and construction of turnkey industrial plants as well as a full range of engineering services for process plants. To date, the Engineering Division has built nearly 4,000 plants and has numerous patents registered in the Linde name. With extensive engineering know-how accompanied by many years of experience in project management and general contracting, the Engineering Division has established its standing as an expert partner in international plant construction.

4 04 Linde Engineering: Air separation Packaged air separation plants. Packaged air separation plants are standard and modularly designed plants with a daily capacity of 850 tpd (approx. 25,000 Nm 3 /h) of oxygen ( and LOX), 2,000 tpd (approx. 66,000 Nm 3 /h) of nitrogen ( and LIN) and argon (GAr and LAr). The plant modules are pre-fabricated in the workshop to the maximum extent possible Production of 3,000 Nm 3 /h in Rauha, Finland 6000 Ar Production of 6,000 Nm 3 /h in Shlobin, Belarus 9000 Ar Production of 9,000 Nm 3 /h in Hwasung, South Korea Packaged air separation plant 6000 Ar in Otelu Rosu, Romania

5 Linde Engineering: Air separation 05 The process. Linde draws on its extensive know-how in air separation plant operation to select the process that best meets the customer s requirements. All state-of-the-art air separation technologies such as internal compression for and and cryogenic argon production are available. The schematic illustration below shows a typical configuration of a packaged air separation plant. Air is drawn through an air filter to remove dust and other particles before it enters the main air compressor. Downstream from the main compressor the air enters the process air cooling stage. Here it is washed and cooled in countercurrent against a stream of water. This washing process also removes harmful components of the process air such as SO 2, SO 3 and NH 3. Remaining contaminants in the process air such as water vapour, CO 2, N 2 O and potentially hazardous hydrocarbons are adsorbed from the air by passing it through one of the two molecular sieve adsorbers. One adsorber is in operation while the other is in regeneration mode. bottom. The required reflux for rectification is provided by condensation of gaseous nitrogen against boiling oxygen in the condenser/reboiler. A part of the liquid nitrogen is used as reflux for the pressure column. The rest is sub-cooled and passed to the top of the low-pressure column. Liquid nitrogen for the customer is then drawn off and sent out to the LIN tank. Liquid oxygen is taken from the bath of the condenser and fed to the LOX tank. Liquid oxygen and liquid nitrogen are pumped through the main heat exchanger and vaporised at the customer s specified gas pressure for and. After further cooling the dry, pure air in the main heat exchanger, the air enters the pressure column where it is separated into pure nitrogen. The nitrogen is yielded from the top, and oxygen enriched liquid collects at the Refrigeration needs of the plant necessitated by insulation losses, heat exchanger losses and removal of cold liquids from the low-temperature section are mainly met by isentropic expansion of air in the expansion turbine. Typical process configuration of a packaged air separation plant HP 99.8 % Coldbox 6000 HP 1 ppm O 2 Molecular sieve station with electric heater Main heat exchanger Low pressure column LOX 99.8 % Condenser/ reboiler Process air cooling with DCAC and EVC Pressure column LIN 1 ppm O 2 Air compression M LAr 1 ppm O 2 / 1 ppm N 2 Air Air filter M CI pump 2 x 100 % M CI pump 2 x 100 %

6 06 Linde Engineering: Air separation Features of packaged plants. Plant designs are created with the use of advanced engineering tools including process calculation and modelling with the Linde in-house developed OPTISIM simulation program. 3D CAD modelling is also employed as well as isometric and material list generator for plant design and model review. Control equipment is ready installed in containers equipped with plug & play functionality. The highest quality standards are achieved through the application of a stringent quality system in accordance with ISO 9000 for engineering design and manufacturing. Highly developed and proven control philosophy and software ensure reliable, convenient and economic plant operation. Protection measures are applied wherever the safety of operating personnel may be jeopardized by the process, rotating machinery or exposure to extreme temperatures. Erection and start-up time is minimised through the delivery of completely pre-packaged and tested units like the air compressor, refrigeration unit, molecular sieve valve skid and coldbox units. Electrical and control equipment are ready installed in containers featuring plug & play operation. Sophisticated interlock functions protect the plant against unforeseen failures or maloperation and keep the plant in a safe condition in the event of power failure. Product range of nitrogen plants Purity class 1-10 ppm O 2 1 ppb O 2 3,500 3,500 SPECTRA 7,000 6,000 SPECTRA 10,000 SPECTRA 15,000 15,000 SPECTRA 30,000 30,000 SPECTRA 50,000 50, ppm O 2 300/600/900/1,200/1, /450/900/1,200/1,800 1,000 5,000 10,000 15,000 20,000 25,000 50,000 flow [Nm³/h]

7 Linde Engineering: Air separation 07 Air separation plant 3000 in Camacari, Brazil Product range of oxygen plants 98 % - 99,8 % 1,000 2,000 3,000 4,500 6,000 9,000 12,000 15,000 19,000 23,000 Purity class 4,500 - IMP 92 % - 97 % 6,000 - IMP 9,000 - IMP 0 2,000 4,000 6,000 8,000 10,000 12,000 14,000 16,000 18,000 20,000 22,000 24,000 flow [Nm³/h]

8 08 Linde Engineering: Air separation In-house manufacturing of key components. The in-house capability to manufacture essential plant components is a contributing factor to why Linde is regarded as a firstclass supplier and preferred vendor for air separation plants. Decades of experience in the field of cryogenic process plant design are the basis for state-ofthe-art technology in the assembly of packaged air separation plants. Linde manufactured key components such as plate-fin heat exchangers, packings and columns are the foundation for long-term, trouble-free operation of a Linde air separation plant. Aluminium plate-fin heat exchanger Packings Tray columns One of Linde s main workshops close to Munich, Germany

9 Linde Engineering: Air separation 09 Pre-fabricated molecular sieve valve skid Pre-fabricated control substation container Packaged unit coldbox ready for transport Pre-fabricated equipment In-house manufactured components such as plate-fin heat exchangers and columns are installed in self-supporting steel casings. The sizes of the cold boxes are designed for road transportation, which also eases site handling. Other modules such as molecular sieve valves and cryogenic pumps are installed onto skids to the maximum degree possible for pre-fabrication and testing. The plant control system together with operator station(s) and analyzing equipment are supplied in an air-conditioned container, ready-cabled and shop-tested with the configuration of the DCS already installed. A separate shop-assembled container is supplied for all electrical medium-voltage switchgear, step-down transformers and low-voltage switchgear including VFDs for pumps and other electrical equipment. All above-mentioned plant modules and skids are equipped with remote I/O modules for easy bus connection. This high degree of pre-fabrication and testing results in short erection periods with minimised start-up times.

10 10 Linde Engineering: Air separation Sophisticated plant control. Instrumentation is selected from internationally renowned manufacturers with regard to the highest quality standards and product reliability. The instrumentation is connected to a safe and sophisticated process control system using the latest proven design in digital control technology to ensure optimal reliability and allow for easy and economic operation of a Linde air separation plant. Advanced control functions allow fully unattended operation, automatic start-up from cold condition, automatic load changes and product adaptation. Finally, the remote operation function fully meets the needs of a state-of-the-art air separation plant. ASU control container ISDN/DSL router ISDN/DSL router Ethernet HUB Operation bus Operator station 1 Printer Operator station 2 Linde Engineering Headquarters System bus Central control cabinet Online support for commissioning and after sales service of the plant CPU I/O s I/O s Standard Advanced process control Operation options Automatic start-up (AST) from cold state Linear model predicted control (LMPC) Remote plant operation Remote operation of advanced control Standard control Automatic process stabilisation and monitoring Operator interaction: Process monitoring Manual set point change Advanced control Remote control (optional) Automatic load change (ALC) Remote monitoring

11 Linde Engineering: Air separation 11 Linde air separation and CO 2 plant applied to CCS technology, Oxyfuel pilot plant in Schwarze Pumpe, Germany Project execution Quality, safety, health and environmental protection (QSHE) have critical importance in our work. Customers expect us to supply safe and economical plants equipped with the latest technology. The Engineering Division fully responds to this, expectation in its projects all over the world. Our QSHE management and policy is in line with the following: DIN EN ISO 9000 : 2000 ISO PED 97/23/EC (Modul H) OHSAS SCC checklist Work safety and environmental protection legislation

12 Engineering excellence every step of the way. Linde s Engineering Division, a leading player in the international plant engineering business, covers every step in the design, project management and construction of turnkey industrial plants. Drawing on our extensive, proven process know-how, we set the standards for innovation, flexibility and reliability with ground-breaking concepts and a dedication to engineering excellence. The success of our customers and partners around the globe is of primary importance. With a clear focus on efficiency, sustainability and growth, we develop customised solutions for projects of all sizes and degrees of complexity. We have already delivered more than 4,000 plants worldwide and always aim to find the best technical and economic solution for our customers. Core competencies in plant engineering: Air separation plants LNG and natural gas processing plants Petrochemical plants Hydrogen and synthesis gas plants Chemical plants Adsorption plants Cryogenic plants Biotechnology plants Carbon capture and utilisation plants Furnaces, fired heaters, incinerators Core competencies in component manufacturing: Packaged units and coldboxes Coil-wound heat exchangers Plate-fin heat exchangers Cryogenic columns Cryogenic tanks Air-heated vaporisers Water bath vaporisers Spiral-welded aluminium pipes Get in touch find the best solution. Air separation plants Phone airseparation@linde-le.com Linde AG Engineering Division, Dr.-Carl-von-Linde-Strasse 6 14, Pullach, Germany Phone , Fax , info@linde-le.com, AS.B2EN 1113 &AA