专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US4298457A Hydropyrolysis process for upgrading heavy oils and solids into light liquid products 失效
标题翻译：将重油和固体升级成轻液体产品的热解方法
公开(公告)号：US4298457A
公开(公告)日：1981-11-03
申请号：US137083
申请日：1980-04-03
申请人： Alex G. Oblad , Joseph Shabtai , Rasmasamy Ramakrishnan
发明人： Alex G. Oblad , Joseph Shabtai , Rasmasamy Ramakrishnan
IPC分类号： C10G47/00 , C10G1/06 , C10G9/00 , C10G47/22
CPC分类号： C10G1/06 , C10G47/22 , C10G9/00
摘要： A hydropyrolysis process for upgrading heavy, high molecular weight feedstocks such as coal-derived liquids, petroleum crudes, tar sand bitumens, shale oils, bottom residues from process streams, and the like, to lighter, lower molecular weight liquid products. The process includes subjecting the feedstocks to pyrolysis in the presence of hydrogen under carefully controlled conditions of temperature and pressure. The process can be defined as hydrogen-modified, thermal cracking in the specific temperature range of 450.degree. C. to 650.degree. C. and in the hydrogen pressure range of about 120 psi to 2250 psi. The amount of hydrogen present can be varied according to the type of feedstock and the liquid product desired. Although the hydrogen is not consumed in large amounts, it does participate in and modifies the process, and thereby provides a means of controlling the process as to the molecular weight range and structural type distribution of the liquid products. The presence of hydrogen also inhibits coke formation. The process also eliminates the requirement for a catalyst so that the reaction will proceed in the presence of heavy metal contaminants in the feedstock which contaminants would otherwise poison any catalyst.
摘要翻译：将重质，高分子量原料如煤衍生的液体，石油原油，焦油砂沥青，页岩油，工艺流中的底部残渣等升级到更轻的较低分子量液体产物的加氢热解方法。该方法包括在精细控制的温度和压力条件下，在氢气存在下对原料进行热解。该方法可以定义为在450℃至650℃的特定温度范围和约120psi至2250psi的氢气压力范围内的氢改性的热裂解。存在的氢的量可以根据原料的类型和所需的液体产物而变化。尽管氢不被大量消耗，但它确实参与并改变了该方法，从而提供了一种控制液体产品的分子量范围和结构类型分布的方法。氢的存在也抑制焦炭形成。该方法还消除了对催化剂的要求，使得反应将在原料中存在重金属污染物的情况下进行，这些污染物否则将毒化任何催化剂。

IPRDB

热门服务

关于我们

友情链接

联系方式