公开(公告)号：WO0223110A3

公开(公告)日：2002-07-04

申请号：PCT/US0128580

申请日：2001-09-12

Applicant: CADENCE ENVIRONMENTAL ENERGY ,  ASH GROVE CEMENT CO ,  HANSEN ERIC R ,  SUPELAK RALPH A ,  TUTT JAMES RONALD ,  WAY PETER F

Inventor： HANSEN ERIC R ,  SUPELAK RALPH A ,  TUTT JAMES RONALD ,  WAY PETER F

IPC: C04B2/10 ,  C04B7/44 ,  C04B7/60 ,  F27B7/34 ,  F27B7/36 ,  F27D7/04 ,  C04B7/36 ,  F27B7/20 ,  F27D7/02

CPC classification number: F27B7/00 ,  F27B7/10 ,  F27B7/2016 ,  F27B7/2033 ,  F27B7/34 ,  F27B7/36 ,  F27B2007/367 ,  F27D7/04

Abstract: A method is described for reducing NOx emissions and improving energy efficiency during mineral processing in a rotary kiln (12). The method comprises injection of air (32) with high velocity/high kinetic energy into the kiln to reduce or eliminate stratification of kiln gases. The method can be applied to mix gases in a rotary kiln vessel or in a preheater/pecalciner vessel.

Abstract translation: 描述了一种用于在回转窑（12）中的矿物加工期间减少NOx排放并提高能量效率的方法。 该方法包括将高速/高动能的空气（32）注入窑内以减少或消除窑气分层。 该方法可以应用于在回转窑容器或预热器/分解器容器中混合气体。

公开(公告)号：WO1982001476A1

公开(公告)日：1982-05-13

申请号：PCT/US1980001436

申请日：1980-10-23

Applicant: WAY PETER F

IPC: B01D07/00

CPC classification number: B01D7/02 ,  C07C51/573 ,  Y02P20/124 ,  C07C63/16

Abstract: Phthalic anhydride is recovered from gases in a multiple heat-Pipe exchanger system, one or more heat exchangers (10) for condensing phthalic anhydride from gases containing vapors thereof and one or more heat exchangers (10) for simultaneously melting out the condensed phthalic anhydride solids, the exchangers (10) being switched in alternate cycles to melt out from the surfaces of the exchangertube (14) ends on which the phthalic anhydride solids were first accumulated, and to condense phthalic anhydride solids in the exchanger (10) or exchangers (10) from which the phthalic anhydride was removed by melting out, the cooling of opposite heat-pipe exchanger tube (14) ends to recover phthalic anhydride is economical and efficient with ambient air, either alone or with some warm recycle exchanger air to adjust the cooling temperature; and the heating to melt out accumulated phthalic anhydride is effective with hot gases, such as combustion gases, preferably by incineration a residual phthalic anhydride tail gas from which the phthalic anhydride was condensed, or other hot combustion gases, but other sources of heating the air or gases may be optionally substituted. Important advantage is present in superior heat exchange efficiency using the heat-pipe exchanger (10) for this service, in the ready switching from heating to cooling of such exchangers (10) for alternate operation in both condensing and melting out modes, in the elimination of intermediary heat transfer media and the separate auxiliary equipment required for the heating and cooling cycles, in the utilization of waste heat from combustion gases, and in the great economy for phthalic anhydride storage tank vent condensers through elimination of both cooling water and steam requirements.

Abstract translation: 邻苯二甲酸酐在多重热交换器系统中从气体中回收，一个或多个热交换器（10）用于将邻苯二甲酸酐从包含其蒸气的气体中冷凝，以及一个或多个热交换器（10），用于同时熔化冷凝的邻苯二甲酸酐固体 ，交换器（10）以交替循环切换，从交换管（14）的端部熔化出邻苯二甲酸酐固体首先积聚的端部，并在交换器（10）或交换器（10）中冷凝邻苯二甲酸酐固体 ），通过熔化除去邻苯二甲酸酐，相对的热交换管（14）的冷却结束以回收邻苯二甲酸酐，与环境空气单独或与一些温暖的循环交换器空气一起经济和有效地调节冷却 温度; 并且加热熔化积聚的邻苯二甲酸酐对于诸如燃烧气体的热气体是有效的，优选通过焚烧邻苯二甲酸酐缩合的残余邻苯二甲酸酐尾气或其它热燃烧气体，但是其它加热空气的来源 或气体可以任选地被取代。 重要的优点在于使用热管交换器（10）在这种服务中的优异的热交换效率，在从冷凝和融化模式中交替操作的这种交换器（10）的加热到冷却的准备切换中，消除 中间传热介质和加热和冷却循环所需的单独的辅助设备，利用来自燃烧气体的废热，以及通过消除冷却水和蒸汽要求在邻苯二甲酸酐储罐排气冷凝器的巨大经济性。