Oxidesulfurization (ODS) of Petroleum Sulfur Compounds for Simultaneous Reduction of Sulfur Emissions and Production of Valuable Chemicals:A Novel Environmentally Benign Process

石油硫化合物的氧化硫化（ODS），同时减少硫排放和生产有价值的化学品：一种新的环境友好工艺

• 批准号: 0213377
• 负责人: Israel Wachs
• 金额: $ 31万
• 依托单位: Lehigh University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 2002
• 资助国家: 美国
• 起止时间: 2002-08-01 至 2005-09-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0213377&HistoricalAwards=false
• 关键词: Oxidesulfurization; ODS; Petroleum; Sulfur; Compounds

The objective of this project is to explore the vapor-phase oxidesulfurization (ODS) of various organosulfur compounds found in petroleum feedstocks and to upgrade those compounds to valuable chemical products. Simultaneously, a basic understanding of ODS catalysis will be investigated. Preliminary studies have revealed that such organosulfur compounds can be selectively oxidized to valuable chemical intermediates (e.g., phenol, maleic anhydride, and formaldehyde). The objectives of the fundamental scientific ODS studies are to determine the: (1) molecular nature of the active surface sites present in model supported metal oxide catalysts, (2) number of surface sites required for the various reactions, (3) role of surface redox, acidic and basic sites, (4) role of the specific oxide support (ligand effect), (5) fundamental kinetics and mechanisms and (6) molecular structure-reactivity/ selectivity relationships for ODS. In terms of broader impacts, the advantages offered by an ODS process are: (1) the use of free oxygen, rather than expensive hydrogen, (2) eliminates the need for costly reactor units for methane steam reforming, water-gas shift and Claus reactions, (3) production of significantly lower amounts of global warming carbon dioxide due to the minor unselective oxidation reaction pathways, (4) direct production of sulfuric acid that can be used in the alkylation processes in the petroleum refinery and (5) a supply of relatively inexpensive sulfur-containing feedstocks for the production of valuable chemical intermediates. The educational aspect will be the mentoring of graduate and undergraduate students. Thus, an ODS process to remove sulfur from fuels is a potentially attractive pollution control strategy. It is environmentally benign with low emissions.

该项目的目标是探索石油原料中各种有机硫化合物的气相氧化硫化作用，并将这些化合物升级为有价值的化学产品。 同时，ODS催化的基本理解将进行调查。 初步研究表明，此类有机硫化合物可以选择性氧化为有价值的化学中间体（例如，苯酚、马来酸酐和甲醛）。消耗臭氧层物质基础科学研究的目标是确定：（1）存在于模型负载的金属氧化物催化剂中的活性表面位点的分子性质，（2）各种反应所需的表面位点的数目，（3）表面氧化还原、酸性和碱性位点的作用，（4）特定氧化物载体的作用（5）基本动力学和机理;（6）ODS的分子结构-反应性/选择性关系。就更广泛的影响而言，消耗臭氧层物质工艺的优势如下：（1）使用游离氧而不是昂贵的氢，（2）消除了对用于甲烷蒸汽重整、水煤气变换和克劳斯反应的昂贵反应器单元的需要，（3）由于较小的非选择性氧化反应途径而产生显著较低量的全球变暖二氧化碳，（4）直接生产可用于炼油厂烷基化过程的硫酸，和（5）供应相对便宜的含硫原料用于生产有价值的化学中间体。教育方面将指导研究生和本科生。 因此，从燃料中去除硫的ODS工艺是一种潜在的有吸引力的污染控制策略。它对环境无害，排放量低。