In the MTBE cracking process to produce isobutylene, what impact does MSBE present in MTBE have on the etherification reaction?
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In the process of producing isobutylene via MTBE cracking, what is the effect of MSBE present in MTBE on the etherification reaction?
Participates in cleavage to form methanol and n-butylene, affecting the purity of the main product, isobutylene； It is necessary to control the content of MSBE in the raw materials.
Theoretically, this parameter will certainly affect the isobutylene purity of the product; the industry standard is to keep MSBE at less than 0.1%, but in my actual operation I kept it below 0.5%, without any impact on the product specifications.
Such impure substances have little effect other than affecting the purity of the product. Unless the quantity is very large, it not only affects purity but also has an impact on mass transfer.
Its content needs to be controlled as it affects purity
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A small amount has little impact; MSBE is less prone to cracking compared to MTBE