用焦炉煤气制甲醇装置与弛放气运用在焦炉加热优化串级调控工艺中（简称OCC工艺）分别由化工第二设计院与安徽工业大学和滕州盛隆煤焦化公司共同开发。系统投运后产出优质甲醇，并将弛放气运用于OCC工艺中，取得了明显节能、环保和经济效益。

Preparation plant of methanol by coke oven and application of purge gas in optimizing cascaded control respectively developed by chemical engineering secondary design institute and TengZhou ShengLong coking company. After it was put into operation high quality methanol was obtained ,and obvious energy saving 、environmental protection and economic benefit could be achieved.