Preparation of biodiesel with waste oil from restaurant by circulatinggas-phase esterification-transesterification-water vapour distillation was studied.
循环气相酯化-酯交换-水蒸汽蒸馏技术是以动、植物油为原料制备生物柴油的新工艺。
2
The invention can raise ammonia net worth, reduce the amount of circulatinggas and the amount of ejected ammonia, and reduce the power for freezing and compressing.
采用本发明可提高氨净值，减少循环气量和氨的排放量，降低冷冻功和压缩功。而且操作方便。
3
The fault analyses were made of the propylene circulatinggas compressors. It was concluded that the major causes were that some fluid and powder materials entered the compressor system.