Process for producing low sulfur content fuel oils
    5.
    发明授权
    Process for producing low sulfur content fuel oils 失效
    生产低硫含量燃料油的方法

    公开(公告)号:US3984305A

    公开(公告)日:1976-10-05

    申请号:US460653

    申请日:1974-04-12

    CPC分类号: C10G9/00 C10G69/06

    摘要: A process for producing a low sulfur content fuel oil in a high yield from a starting oil having a high sulfur content, which comprises (1) treating a residual petroleum oil with hydrogen at a temperature of about 350.degree. to 450.degree. C and a pressure of about 50 to 200 Kg/cm.sup.2 at a liquid hourly space velocity of about 0.2 to 4 l/H.l in the presence of a catalyst, (2) introducing an inert gas or steam at a temperature of about 400.degree. to 900.degree.C and pyrolyzing the treated oil at a temperature of about 350.degree. to 500.degree.C and at a pressure of about atmospheric pressure to 100 Kg/cm.sup.2 with a residence time of about 0.5 to 10 hours, and (3) hydrodesulfurizing the pyrolyzed oil at a temperature of about 300.degree. to 400.degree.C and a pressure of about 30 to 100 Kg/cm.sup.2 at a liquid hourly space velocity of about 0.5 to 4 l/H.l in the presence of a desulfurizing catalyst.

    摘要翻译: 一种从具有高硫含量的起始油中以高产率生产低硫含量燃料油的方法,其包括(1)在约350-450℃的温度下用氢气处理残留的石油油和压力 约50至200Kg / cm 2,在催化剂存在下,液体时空速为约0.2至4升/升,(2)在约400-900℃的温度下引入惰性气体或蒸汽,以及 在大约350℃至500℃的温度和约大气压至100Kg / cm 2的压力下热处理油,停留时间为约0.5至10小时,和(3)在温度下对热解油进行加氢脱硫 约为300〜400℃,压力为约30〜100Kg / cm 2,在脱硫催化剂存在下,以0.5〜4l / Hl的液时空速。

    Collagen fibers for use in medical treatments
    10.
    发明授权
    Collagen fibers for use in medical treatments 失效
    胶原纤维用于医疗

    公开(公告)号:US4420339A

    公开(公告)日:1983-12-13

    申请号:US359309

    申请日:1982-03-18

    申请人: Tadaaki Kato

    发明人: Tadaaki Kato

    摘要: Disclosed herein are collagen fibers for use in medical treatments, having amino acid residues of 312 to 340 glycine residues, 119 to 138 proline residues, 94 to 100 hydroxyproline residues and 2.6 to 5.5 tyrosin residues per 1000 total amino acid residues thereof, a denaturation temperature in a range of 31.degree. to 40.degree. C., and S-constant of 1.12 to 1.62.

    摘要翻译: 本文公开了用于医​​学治疗的胶原纤维,其每1000个总氨基酸残基具有312至340个甘氨酸残基的氨基酸残基,119至138个脯氨酸残基,94至100个羟脯氨酸残基和2.6至5.5个酪氨酸残基,变性温度 在31〜40℃的范围内,S常数为1.12〜1.62。