ILLA's Phenol Process has proven to be exceptionally reliable in operation at various phenol plants and record incomparable safety record. ILLA's clients have never experienced any safety-related emergency shutdowns caused by any fault of the safety system created under ILLA International concepts.
ILLA's Phenol Process operation is based on use of computerized control system. Accordingly, this process achieves much higher safety and protection level, absolute independence from the knowledge of the operating personnel and highest level of final products, which by far outpaces any competing processes.
ILLA managed to implement the unique and essentially new approach to the key and most dangerous process stages - cumene oxidation and CHP cleavage stages.
Cumene Oxidation Stage
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control and regulation of oxygen concentration in reactor spent gases (off-gases) |
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organization of optimal heat removal in the reactors |
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maintaining optimal conditions based on a kinetic model of the process. |
CHP Cleavage Stage
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automatic computerized start-up of the process; |
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three-level process protection; |
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on-line computer monitoring and control over the CHP conversion in the reactors; |
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protection against process disturbing factors; |
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flexibility at variable feed-rates; |
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safe and stable performance under over design feed-rates; |
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automatic balancing of heat generation and heat removal processes; |
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completely resolved "hot spots" problem typical of all other technologies. |
With regard to the acid-catalyzed CHP cleavage stage, which only takes several seconds, ILLA International totally rejected the outdated conventional philosophy of process protection that is still used in all other available competitive technologies and involves a single simple protection level. ILLA has developed a unique three-level method for the monitoring, control, and protection of the process. This method allows for computer-aided process startup, computer-aided monitoring of all the operating conditions, and automated control over CHP conversion value regardless of any disturbances affecting the process, i.e. any deviation from design conditions. This has resulted in a manifold increase of the safety level of ILLA's CHP cleavage process over other processes which utilize the conventional protection method. Moreover, in ILLA's process, the concept of maximum selectivity is not opposed to the principle of maximum process safety and protection, in contrast to the conventional philosophy used in other technologies. In summary, ILLA's process provides maximum selectivity in conjunction with maximum safety level. Due to this feature, this process achieves a final product yield which greatly exceeds that of competitive processes. On the other hand, this process does not require a hard-operable and energy-consuming stage of phenol tar cracking because the ILLA process provides a significantly lower yield of phenol tar over any other competitive process.
The unique design of FAN2000TM allows a 20% to 40% relative reduction in cooling water consumption over other competitive processes.
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