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公开(公告)号：US20050106092A1
公开(公告)日：2005-05-19
申请号：US10505242
申请日：2003-02-15
申请人： Frank Dziobek , Detlev Claes , Joachim Johanning , Rainer Maurer , Erich Szonn
发明人： Frank Dziobek , Detlev Claes , Joachim Johanning , Rainer Maurer , Erich Szonn
CPC分类号： C01B21/26 , C01B21/28 , F01K23/064 , Y02P20/129
摘要： The invention relates to a method for the production of nitric acid having a concentration of between 50 and 76%, from ammonia and gas containing oxygen, under pressure, according to a single pressure method or dual pressure method. The expansion of the residual gas takes place in at least two stages in a work efficient manner. At least one device for heating the previously expanded gas to a temperature of more than 450° is disposed between every other expansion stage, using waste heat from the production process of nitric acid.
摘要翻译： 本发明涉及一种根据单一压力法或双压法在压力下从氨和含氧气体生产浓度为50至76％的硝酸的方法。 残余气体的膨胀以至少两个阶段以有效的方式进行。 使用来自硝酸生产过程的废热，将至少一个用于将先前膨胀的气体加热到大于450°的温度的装置设置在每个其它膨胀阶段之间。
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公开(公告)号：US06264910B1
公开(公告)日：2001-07-24
申请号：US09277389
申请日：2001-03-26
申请人： Rainer Maurer , Erich Szonn , Wolfgang Seehars , Lothar Mietze
发明人： Rainer Maurer , Erich Szonn , Wolfgang Seehars , Lothar Mietze
IPC分类号： C01B2138
CPC分类号： C01B21/26 , Y02P20/129
摘要： A process for the production of nitric acid using the dual-pressure process in which the ammonia is burnt at an initial low pressure with the aid of compressed process air and the nitrous gases formed during combustion are at least partly absorbed by water at a second pressure which is higher than the first. This causes nitric acid to be produced and the pressure of the residual gas, which is not absorbed, is reduced to atmospheric pressure in a residual gas expander for the purpose of winning compression potential. Said process provides a solution aimed at optimising the production of nitric acid whilst improving the production parameters and the materials and energy balances. This is achieved by supplying a multishaft geared centrifugal compressor separately with process air and nitrous gas, the process air being compressed to the initial pressure and the nitrous gas being compressed to a second pressure.
摘要翻译： 使用双压法生产硝酸的方法，其中氨在压缩处理空气的帮助下在初始低压下燃烧，并且在燃烧期间形成的亚硝态气至少部分地被第二压力的水吸收 高于第一。 这导致产生硝酸，并且为了获得压缩电位的目的，在残余气体膨胀器中将不吸收的残余气体的压力降低到大气压。 所述方法提供了一种解决方案，旨在优化硝酸的生产，同时改善生产参数和材料和能量平衡。这是通过单独向过程空气和亚硝酸气体供应多轴齿轮式离心压缩机而实现的，过程空气被压缩到 初始压力和亚硝气被压缩至第二压力。
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公开(公告)号：US07258849B2
公开(公告)日：2007-08-21
申请号：US10505242
申请日：2003-02-15
申请人： Frank Dziobek , Detlev Claes , Joachim Johanning , Rainer Maurer , Erich Szonn
发明人： Frank Dziobek , Detlev Claes , Joachim Johanning , Rainer Maurer , Erich Szonn
CPC分类号： C01B21/26 , C01B21/28 , F01K23/064 , Y02P20/129
摘要： The invention relates to a method for the production of nitric acid having a concentration of between 50 and 76%, from ammonia and gas containing oxygen, under pressure, according to a single pressure method or dual pressure method. The expansion of the residual gas takes place in at least two stages in a work efficient manner. At least one device for heating the previously expanded gas to a temperature of more than 450° is disposed between every other expansion stage, using waste heat from the production process of nitric acid.
摘要翻译： 本发明涉及一种根据单一压力法或双压法在压力下从氨和含氧气体生产浓度为50至76％的硝酸的方法。 残余气体的膨胀以至少两个阶段以有效的方式进行。 使用来自硝酸生产过程的废热，将至少一个用于将先前膨胀的气体加热到大于450°的温度的装置设置在每个其它膨胀阶段之间。
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