Medium pressure hydrogenation of fatty acid methyl ester to produce fatty alcohol has been a monopoly project of David company. Domestic grease hydrogenation technology is mainly high pressure, equipment investment, high operating costs. The medium pressure hydrogenation technology developed by our company is a major breakthrough in domestic fat hydrogenation technology. The picture shows zhongjiahuachen 100000 t / a medium pressure grease hydrogenation industrial test unit. Using our company's technology, the conversion rate of methyl ester is more than 99.9%.