Wege zur Verbesserung der Wirtschaftlichkeit der Anlagen zur physikalischen Raffination unter Berücksichtigung des Trennverhaltens der Nebenkomponenten

Stage, H.

doi:10.1002/lipi.19860880605

Cited by 2 publications

(1 citation statement)

References 10 publications

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“…Tocopherol retention/removal is mainly a result of distillation and as such a question of temperature and the amount of stripping steam [5]. Through the superior distillation efficiency of structured packings it is possible to trim the de-odorizer both for tocopherol removal or tocopherol retention just by adjusting the stripping steam.…”

Section: Flexibility In Product Qualitymentioning

confidence: 99%

Industrial thin-film deodorization of seed oils withSoftColumnTM technology

Ahrens¹

1999

Fett/Lipid

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For almost 100 years, thin-film technology has been wellknown in the chemical industry. It has widely been used for gas/liquid mass transfer operations such as distillation, absorption, and extraction. In order to create a large surface, the liquid is distributed over the inner surface of a tube bundle or over a packing. Random packings are most common due to their low price. Their spreading in industry started with the invention of Raschig rings at the end of the 19 th century. The more effective structured packings are a newer development and have been available since the 1960ies.Deodorizing processes utilizing thin-film technology first appeared in the 1970ies, when plants utilizing random packings were put into operation [1]. The designs used at that time were not successful. The random packing plants suffered from air leakage into the deodorizer caused by tightness problems. Uneven distribution over the random packings spread the oil residence time and led to local overheating. Premature fouling with polymerized materials, caused by poorly pre-processed oil with excessive phosphatide levels, was also studied. As a result of these early experiences, thin-film deodorizing still has a bad reputation among some processors although, in the meantime, the development of this process has gone much further. It has finally led to a very reliable technology and will definetely become more common in the future [2].During the 1980ies, world-wide consolidation and specialization of the oil industry took place. Larger plants with lower operating costs were requested. In 1986, a thin-film deodorizer for physical refining of palm oil was introduced. The plant was equipped with a structured packing rather than the random type used earlier. In the structured packing the oil was evenly distributed and local overheating was avoided. External regenerative spiral heat exchangers were used for heating and cooling since sparged cooling was not necessary due to the high stability of palm oil. The resulting heat recovery rate was 80%. This design has been very successful, especially among palm oil processors in Southeast Asia. Today, there are some 60 plants of this kind in operation world-wide.The palm oil thin-film deodorizer was then further developed for the continuous processing of seed oils. A holding section for heat bleaching and external sparged vacuum heat exchangers for final heating and regenerative cooling were added to the packed tower. Übersichtsbeiträge/Reviews Development of thin-film deodorizers started in the 1970ies, and they have been in industrial use since the middle of the 1980ies. The latest type is the SoftColumn™, a deodorizer specially developed for mild, low cost processing of seed oils. This deodorizer consists of a structured packing section and a flexible holding section. Regenerative oil heating/cooling and final heating is carried out in external, sparged vacuum heat exchangers, and the design of the heat exchangers leads to superior heat recovery and savings in fuel consumption. This set-up provides ...

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Section: Flexibility In Product Qualitymentioning

confidence: 99%

Industrial thin-film deodorization of seed oils withSoftColumnTM technology

Ahrens¹

1999

Fett/Lipid

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Principle of the New ATT‐Process for Converting Vegetable Oils to Diesel Fuels

Stage¹

1988

Fett/Lipid

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Because of the worldwide current strongly rising oil and fat production rates there are needed already in the near future new and easy to handle application possibilities for large throughputs of oils and fats. One of these is their use as diesel fuel alternatives in the form of their methylesters. For European conditions methylesters on rapeseed oil basis are in this case of special interest not only because of the high production rate of this oil but also because of thier special physical conditions as liquid of low melting point and high heat content. On this reason we developed the new ATT‐process which is a complete semi‐continuous acting production line not only for converting natural oils via transesterification into methylesters including their purification but also for recovering all byproducts like glycerine, fatty acids and methanol as chemical pure compounds. Our unit consist out of six effective working operation steps using our special developments patented to us. This ATT‐process is opening good chances for integrating in the future our today suffering farm industry into modern industrial developments.

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Wege zur Verbesserung der Wirtschaftlichkeit der Anlagen zur physikalischen Raffination unter Berücksichtigung des Trennverhaltens der Nebenkomponenten

Cited by 2 publications

References 10 publications

Industrial thin-film deodorization of seed oils withSoftColumnTM technology

Industrial thin-film deodorization of seed oils withSoftColumnTM technology

Principle of the New ATT‐Process for Converting Vegetable Oils to Diesel Fuels

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