公开(公告)号：KR1020020030507A

公开(公告)日：2002-04-25

申请号：KR1020000061354

申请日：2000-10-18

Applicant: 한국과학기술연구원

Inventor： 이중기 ,  정문조 ,  이재우 ,  박달근 ,  우주만 ,  유경선

IPC: B01D53/56

CPC classification number: B01D53/56 ,  B01D2251/21

Abstract: PURPOSE: By adding a specific amount of an anionic surfactant or anionic surfactant/nonionic surfactant in aqueous solution of carbamide £(NH2)2CO| employed in selective non-catalytic reduction of nitric oxides, it is possible to spray carbamide solution finer than use aqueous solution of carbamide alone, especially accelerate chemical decomposition of carbamide over a relatively low temperature range of less than 900°C. CONSTITUTION: In the selective non-catalytic reducing agent for reducing nitric oxides(NOx) containing aqueous solution of carbamide £(NH2)2CO| as main Ingredient, the selective non-catalytic reducing agent is added with a sulfone-based anionic surfactant in an amount of 0.1 to 20wt.%, wherein the sulfone-based anionic surfactant is selected from sodium alpha olefin sulfonate 0.1-10 wt.% and linear alkylbenzene sulfonic acid 0.1-5 wt.%. Further, the selective non-catalytic reducing agent is added with coconut diethanol amide nonionic surfactant in an amount of 0.1-20 wt.%.

Abstract translation: 目的：通过在尿素水溶液中加入特定量的阴离子表面活性剂或阴离子表面活性剂/非离子表面活性剂（NH 2）2CO | 在氮氧化物的选择性非催化还原中，可以单独使用比使用氨基脲水溶液更好的喷雾尿素溶液，特别是在低于900℃的相对较低的温度范围内加速了脲的化学分解。 构成：用于还原一氧化氮（NOx）的选择性非催化还原剂含有水溶液（NH 2）2CO | 作为主要成分，选择性非催化还原剂加入量为0.1-20重量％的砜类阴离子表面活性剂，其中砜类阴离子表面活性剂选自α-烯烃磺酸钠0.1-10重量％ 和直链烷基苯磺酸0.1-5重量％。 此外，选择性非催化还原剂加入0.1-20重量％的椰子二乙醇酰胺非离子表面活性剂。

公开(公告)号：KR1019960010776B1

公开(公告)日：1996-08-08

申请号：KR1019930014456

申请日：1993-07-28

Applicant: 한국과학기술연구원

Inventor： 김훈식 ,  이병권 ,  박현미 ,  이재우 ,  박건유

IPC: B01J23/26

Abstract: The chromium catalyst is prepared by making chromium hydroxide from CrO3 and C2H5OH; reacting chromium hydroxide with HF solution for 1hr. at 60-100 deg.C; and calcining it for 3-10hrs. at 300-400 deg.C. The chromium catalyst is used for preparing 1,1,1,2-tetrafluoroethane that has little greenhouse effect on the earth, ozone depletion effect and is the powerful alternative material of CFC-12.

Abstract translation: 铬催化剂是由CrO 3和C 2 H 5 OH制成氢氧化铬; 将氢氧化铬与HF溶液反应1小时。 在60-100℃; 并煅烧3-10小时。 在300-400℃ 铬催化剂用于制备对地球几乎没有温室效应的臭氧消耗作用的1,1,1,2-四氟乙烷，是CFC-12的强大替代材料。

公开(公告)号：KR1019960003802A

公开(公告)日：1996-02-23

申请号：KR1019940016626

申请日：1994-07-11

Applicant: 한국과학기술연구원

Inventor： 김훈식 ,  이병권 ,  이재우 ,  박건유

IPC: B01J37/00

Abstract: 본 발명에서는 마그네슘 크로메이트(MgCrO
4 ) 또는 마그네슘 디크로메이트(MgCr
2 O7)를 불화수소(HF) 및 에탄(C
2 H
5 OH)과 반응시켜 얻은 생성물을 소성함으로써, 1, 1, 1, 2-테트라플루오로에탄(HFC-134a, CF
3 CH
2 F)을 합성하는 반응에 효율적이며 비활성화 속도가 현저히 저하된 촉매를 제조하는 방법이 제공된다.

公开(公告)号：KR1020020079029A

公开(公告)日：2002-10-19

申请号：KR1020010019607

申请日：2001-04-12

Applicant: 한국과학기술연구원

Inventor： 안규홍 ,  이용훈 ,  이석헌 ,  송경근 ,  박기영 ,  이재우

IPC: C02F9/14

Abstract: PURPOSE: A sewage/wastewater treatment process for sludge reduction using membrane bio reactor is provided, which is characterized in that sludge produced from sewage/wastewater treatment process is oxidized by ozone, and used as substrate for microorganism. Therefore waste sludge is not discharged. CONSTITUTION: The process comprises (a) biological treatment of sewage/wastewater using anaerobic and aerobic microorganism; (b) solid/liquid separation of treated water biologically using membrane; (c) solubilization of sludge produced from biological process by using ozone; and (d) treating soluble sludge again by injecting into the biological treatment process.

Abstract translation: 目的：提供使用膜生物反应器进行污泥减排的污水/污水处理工艺，其特征在于污水/废水处理过程产生的污泥被臭氧氧化，用作微生物底物。 因此废渣不排放。 规定：该方法包括（a）使用厌氧和需氧微生物对污水/废水进行生物处理; （b）生物地使用膜的处理水的固/液分离; （c）通过使用臭氧溶解生物过程产生的污泥; 和（d）通过注入生物处理过程再次处理可溶性污泥。

公开(公告)号：KR1019930007802A

公开(公告)日：1993-05-20

申请号：KR1019910017432

申请日：1991-10-04

Applicant: 한국과학기술연구원

Inventor： 박건유 ,  이병권 ,  박성 ,  이재우

IPC: C01B25/32