Prepared by impregnation of the Ni / HZSM-5 bifunctional catalysts were calcination temperature on catalyst structure and catalytic hydrogenation of sorbitol aqueous phase C5 ~ C6 alkanes Performance. The results show that the metal center and co-acidic carrier the role, sorbitol, through CO bond hydroisomerization highly selective synthesis of sorbitol and C5 ~ C6 hydrocarbons. The aqueous phase hydrogenation of highest activity at 500 ℃ calcined sorbitol on Ni / HZSM-5 catalyst, sorbitol conversion was 62.0%, the total selectivity pentane and hexane was 76.4%, which isohexane selectivity of 45.4%. The catalyst N2 adsorption, X-ray diffraction, NH3 TPD and H2 temperature-programmed reduction After characterization found by an effective surface area and pore volume of the catalyst calcined at 500 ℃ were significantly increased, nickel nitrate HZSM-5 load into smaller grains NiO, sorbitol suppliers, moderate amount of surface acid and Ni species strong interaction with the carrier, is easier to H2 reduction, Ni reduction of up to 100% which is the highest reason for catalytic activity sorbitol quality indicators: According to our D-sorbitol liquid standards for food additives, it shall comply with the following quality indicator, indicators of arsenic, heavy metals and nickel indicators index, raw sugar indicators. In Japan D- sorbitol as a food sweetener, range and limited as follows, soft drinks for the one to three percent, Guangzhou sorbitol, about 3 percent protein in chocolate is four percent. Sorbitol have moisture, retains water, add in chewing gum, candy production license from less keep food soft, improve organization and reduce the hardening effects from the sand. The amount is about eight percent for water retention purposes bread, pastry, use the amount of two percent or so. Guangzhou sorbitol, Yu Jie Chemical (certified), sorbitol is provided by Jie Yu Guangzhou Chemical Co., Jie Yu Guangzhou Chemical Co., Ltd. (shop1370240243690.1688.com) is Guangzhou, chemical products leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In Jie Yu Chemical leadership with the staff warmly welcome all inquiries negotiations to create Jie Yu Chemical better future.