申请人:LIU Juntao
公开号:US20110257424A1
公开(公告)日:2011-10-20
A process of producing C
1
-C
4
alkyl nitrite, comprising the following steps: a) firstly feeding nitrogen oxide and oxygen into Reactor I, contacting with an aluminosilicate catalyst, and reacting to produce an effluent I containing NO
2
and unreacted NO; b) feeding the effluent I and C
1
-C
4
alkanol into Reactor II, and reacting to produce an effluent II containing C
1
-C
4
alkyl nitrite; and c) separating the effluent II containing C
1
-C
4
alkyl nitrite to obtain C
1
-C
4
alkyl nitrite; wherein reactor I is a fixed bed reactor, and Reactor II is a rotating high-gravity reactor; said nitrogen oxide in step a) is NO, or a mixed gas containing NO and one or more of N
2
O
3
and NO
2
, wherein the molar number of NO is greater than that of NO
2
, if any; and the molar ratio of NO in nitrogen oxide to oxygen is 4-25:1.
生产C1-C4烷基亚硝酸酯的过程,包括以下步骤:a)首先将氮氧化物和氧气送入反应器I,与氧化铝硅催化剂接触,并发生反应产生含有NO2和未反应的NO的I型流出物;b)将I型流出物和C1-C4烷醇送入反应器II,并发生反应产生含有C1-C4烷基亚硝酸酯的II型流出物;c)分离含有C1-C4烷基亚硝酸酯的II型流出物,以获得C1-C4烷基亚硝酸酯;其中反应器I为固定床反应器,反应器II为旋转高重力反应器;步骤a)中的氮氧化物为NO,或含有NO和一个或多个N2O3和NO2的混合气体,其中NO的摩尔数大于NO2,如果有的话;氮氧化物中NO与氧气的摩尔比为4-25:1。