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公开(公告)号：US4218326A
公开(公告)日：1980-08-19
申请号：US892225
申请日：1978-03-31
CPC分类号： E21B43/18 , E21B43/168 , Y10S507/936
摘要： A nitrogen-rich inert gas mixture is produced by the partial oxidation of a hydrocarbonaceous feed containing substantially no metals nor noncombustible materials with air in a free-flow, unpacked, refractory-lined gas generator at a temperature in the range of about 1300.degree. to 3000.degree. F. and a pressure in the range of about 1 to 250 atmospheres. The product gas will comprise a mixture of nitrogen, argon and carbon dioxide and may contain small amounts of hydrogen and carbon monoxide, depending on the O/C atomic ratio selected. The atomic ratio of free oxygen in said air to carbon in said hydrocarbonaceous fuel is in the range of about 1.7 to stoichiometric, or slightly less than stoichiometric. By operating at this level of O/C atomic ratio, the H.sub.2 +CO content of the product gas may be minimized or deleted, substantially all of the particulate carbon may be oxidized, substantially no NO.sub.x is produced, and the product gas contains substantially no free oxygen. Further, the sensible heat recovered from the product gas may be used to manufacture by-product high pressure steam for export. The nitrogen-rich product gas may be used for oil formation flooding, or as a pressurizing or blanketing gas. Costly gas compressors may be avoided since the product gas may be produced at or above use pressure.
摘要翻译： 通过在自由流，未包装的耐火材料衬里的气体发生器中在大约1300℃至大约1300℃的温度范围内部分氧化含有基本上不含金属和不可燃材料的空气的含烃原料来生产富氮惰性气体混合物 3000°F，压力范围约为1至250大气压。 产物气体将包含氮气，氩气和二氧化碳的混合物，并且可能含有少量氢气和一氧化碳，这取决于所选择的O / C原子比。 所述烃类燃料中所述空气中的碳与碳之间的游离氧的原子比在约1.7至化学计量的范围内，或略小于化学计量。 通过以这种O / C原子比水平操作，产物气体的H 2 + CO含量可以被最小化或者被消除，基本上所有的颗粒碳都可能被氧化，基本上没有产生NOx，并且产物气体基本上不含 游离氧气。 此外，从产物气体回收的显热可用于制造用于出口的副产物高压蒸汽。 富氮产物气体可用于油层淹没，或用作加压或覆盖气体。 因为可以在或高于使用压力下产生产品气体，所以可以避免成本高的气体压缩机。
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