The green production processes in substitute of ACH mainly include isobutene processes,ethylene processes,isobutane processes and methyl acetylene processes,which will be discussed in this paper.

• 替代ACH法的MMA绿色生产工艺主要有异丁烯工艺、乙烯工艺、异丁烷工艺以及甲基乙炔工艺等。