[go: up one dir, main page]

CN110090616A - 一种低温液体吸附除水材料的制备 - Google Patents

一种低温液体吸附除水材料的制备 Download PDF

Info

Publication number
CN110090616A
CN110090616A CN201810087622.0A CN201810087622A CN110090616A CN 110090616 A CN110090616 A CN 110090616A CN 201810087622 A CN201810087622 A CN 201810087622A CN 110090616 A CN110090616 A CN 110090616A
Authority
CN
China
Prior art keywords
water removal
liquid nitrogen
preparation
cryogenic liquid
water content
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201810087622.0A
Other languages
English (en)
Inventor
苏佳丽
刘玉涛
刘海生
梁怀喜
赵耀中
苏嘉南
余炳延
骆明强
朱晓彤
陈静
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing Institute of Aerospace Testing Technology
Original Assignee
Beijing Institute of Aerospace Testing Technology
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing Institute of Aerospace Testing Technology filed Critical Beijing Institute of Aerospace Testing Technology
Priority to CN201810087622.0A priority Critical patent/CN110090616A/zh
Publication of CN110090616A publication Critical patent/CN110090616A/zh
Pending legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08—Selective adsorption, e.g. chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/06—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04
    • B01J20/08—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising oxides or hydroxides of metals not provided for in group B01J20/04 comprising aluminium oxide or hydroxide; comprising bauxite
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/103—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate comprising silica
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28002—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their physical properties
    • B01J20/28009—Magnetic properties

Landscapes

  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Chemistry (AREA)
  • Inorganic Chemistry (AREA)
  • Solid-Sorbent Or Filter-Aiding Compositions (AREA)

Abstract

本发明是一种液氮除水材料，具有对成品液氮净化的功能。本材料由硅铝胶和磁粉混合而成，净化时将材料装入固定床吸附器，将液氮以一定压力通过吸附器，经过循环后低温液氮的含水量将低于0.5ppm，达到使用要求。本发明在航空航天领域将起到重要的作用。

Description

一种低温液体吸附除水材料的制备
技术领域
本发明属于吸附技术领域，涉及到低温液体(如液氮、液氧等) 除水吸附材料。
背景技术
吸附除水材料是一种化工行业的常用材料。是将气体或液体中的杂质通过吸附方式去除的一种材料。
低温液体中的含水量是衡量其质量的一项重要指标。若含水量超标会严重影响其使用。一般来说，液氮制备过程中，即空气液化的过程即会在气态时除掉空气中所含的水分，液氮经空分制备出厂前，其含水量最高可达到一定的标准。目前，国家要求的纯氮含水量要求 15ppm(10-6摩尔分数)以下，高纯氮含水量要求为3ppm以下，超纯氮含水量要求0.5ppm以下。但制备高纯氮及超纯氮的设备要求极为苛刻，其成本也较高。
另一方面，液氮在出厂到使用前，会经过转注、储存、储运等一系列操作，由于管壁的浓差扩散效应，不可避免会有一定的水污染，因而在使用前液氮的含水量又有一定的增加。而目前有许多使用场合要求液氮的含水量达到0.5ppm甚至更低，这就要求在液氮出厂后为成品液氮进一步除水。
传统的吸附剂都是为气体除去水分，且其吸附深度达不到所需的0.5ppm的要求。因此需要改善吸附剂和吸附质之间的作用力，提高其吸附势，从而将液氮中含水量降到所需的程度。
本发明的主要有以下优点：(1)可以为成品低温液体除水；(2) 可以将低温液体含水量降低到0.5ppm以下，以满足一些极端条件下的使用要求。
发明内容
本发明是一种低温液体除水吸附剂，其目的是为对含水量有较高要求的低温液体除水，从而达到使用要求。
本发明目的的技术解决方案为：将吸附剂(硅铝胶)与磁粉均匀混合(其重量比为1∶1)，使用固定床吸附器装填，使低温液体以一定压力通过吸附器，如此经过吸附器循环后，所得的低温液体其含水量少于0.5ppm。
附图说明
图1为本发明的液氮除水结果数据图，图中蓝色为未除水液氮含水量，红色为使用本发明吸附剂除水后的液氮含水量。
测量时，由于管路及液氮本身的污染，随着吹除时间的增加液氮测得含水量不断降低，但降低到接近1ppm时，再吹除其含水量结果将不会继续下降。而经过除水后，随着时间的推移其含水量将降到 0.5ppm以下。
具体实施方式
具体实施案例1：以下对本发明进一步说明。
本发明的液氮除水材料主要由硅铝胶、磁粉组成。将硅铝胶和磁粉以重量比1∶1的比例混合均匀，在真空干燥箱中150℃烘干24小时，装填在固定床吸附器内，装填时应尽量在干燥环境并在开启吸附器前保持吸附器两端口封闭。装好设备后开启吸附器，使液氮以一定压力通过吸附器内，经过几小时循环，其含水量将降到0.5ppm以下。循环时间根据液氮量及吸附剂量调整。

Claims (4)

1.一种用于低温液体除水的吸附材料的制备方法，主要由磁粉和硅铝胶组成。
2.根据权利要求1所述的一种低温液体除水的吸附材料的制备方法，其特征在于：将硅铝胶和磁粉以重量比1∶1混合，搅拌均匀后放入吸附器使用。
3.根据权利要求1所述的一种低温液体除水的吸附材料的制备方法，其特征在于：混合吸附材料在使用前须经过真空干燥，温度150℃时间24小时以上。
4.根据权利要求1所述的一种低温液体除水的吸附材料的制备方法，其特征在于：将权利要求1和2所述制得的磁性硅铝胶作为吸附剂，吸附液氮中的水分，其最终含水量可达到0.5ppm以下。
CN201810087622.0A 2018-01-30 2018-01-30 一种低温液体吸附除水材料的制备 Pending CN110090616A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201810087622.0A CN110090616A (zh) 2018-01-30 2018-01-30 一种低温液体吸附除水材料的制备

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201810087622.0A CN110090616A (zh) 2018-01-30 2018-01-30 一种低温液体吸附除水材料的制备

Publications (1)

Publication Number Publication Date
CN110090616A true CN110090616A (zh) 2019-08-06

Family

ID=67442339

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201810087622.0A Pending CN110090616A (zh) 2018-01-30 2018-01-30 一种低温液体吸附除水材料的制备

Country Status (1)

Country Link
CN (1) CN110090616A (zh)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0579754A (ja) * 1991-09-20 1993-03-30 Hitachi Ltd 高純度窒素の製造装置
JPH06205971A (ja) * 1992-08-21 1994-07-26 Praxair Technol Inc 気体精製方法及びシステム
CN1125191A (zh) * 1993-12-31 1996-06-26 乔治.克劳德方法和研究开发空气股份有限公司 制备高纯液氮的方法和设备
JPH08173748A (ja) * 1994-12-26 1996-07-09 Japan Pionics Co Ltd 不活性ガスの精製方法および装置
CN1171534A (zh) * 1996-06-07 1998-01-28 液体空气乔治洛德方法利用和研究有限公司 高纯液态低温流体的制备方法与装置
CN1330970A (zh) * 2000-06-29 2002-01-16 波克股份有限公司 气体的纯化
CN1467014A (zh) * 2002-05-31 2004-01-14 �����Ʒ�뻯ѧ��˾ 使用复合吸附剂的气流纯化

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0579754A (ja) * 1991-09-20 1993-03-30 Hitachi Ltd 高純度窒素の製造装置
JPH06205971A (ja) * 1992-08-21 1994-07-26 Praxair Technol Inc 気体精製方法及びシステム
CN1125191A (zh) * 1993-12-31 1996-06-26 乔治.克劳德方法和研究开发空气股份有限公司 制备高纯液氮的方法和设备
JPH08173748A (ja) * 1994-12-26 1996-07-09 Japan Pionics Co Ltd 不活性ガスの精製方法および装置
CN1171534A (zh) * 1996-06-07 1998-01-28 液体空气乔治洛德方法利用和研究有限公司 高纯液态低温流体的制备方法与装置
CN1330970A (zh) * 2000-06-29 2002-01-16 波克股份有限公司 气体的纯化
CN1467014A (zh) * 2002-05-31 2004-01-14 �����Ʒ�뻯ѧ��˾ 使用复合吸附剂的气流纯化

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
聂百胜等: "磁化水在煤层注水中的应用", 《辽宁工程技术大学学报》 *
苏佳丽: "极低露点液氮获得技术研究", 《中国硕士学位论文全文数据库 工程科技Ⅰ辑》 *

Similar Documents

Publication Publication Date Title
CA1042365A (en) Process for removing carbon dioxide from gas streams
Zhang et al. Effect of water content on separation of CO2/CH4 with active carbon by adsorption–hydration hybrid method
Emmett et al. Determination of surface areas
CN109696380B (zh) 一种评价微孔材料气体分离性能的方法及装置
CN103983545A (zh) 一种活性焦二氧化硫吸附速率测试装置和方法
CN104897508B (zh) 一种功能材料热力学参数的测试方法
Tomes et al. Some factors affecting the surface area of hydrated portland cement as determined by water-vapor and nitrogen adsorption
US20200139342A1 (en) Metal-organic framework, method for preparing the same, and adsorption device employing the same
Tokarev et al. Selective water sorbents for multiple applications, 4. CaCl 2 confined in silica gel pores: sorption/desorption kinetics
CN104383795A (zh) 一种精密仪器用脱氧干燥剂及其制备方法
CN110090616A (zh) 一种低温液体吸附除水材料的制备
CN112076729A (zh) 一种长链饱和烷烃硅烷负载二氧化硅吸附剂的制备方法
CN104549185A (zh) 一种金属有机骨架吸附材料表面改性方法
CN112414892A (zh) 低温氦基混合气体吸附研究系统及控制方法
CN207012771U (zh) 六氟化硫和氮气混合气体回收分离提纯装置
CN108348834A (zh) 分子筛在天然气脱碳中的用途
CN111375384A (zh) 一种核壳型吸附材料及其制备方法
Schell et al. Comparison of commercial and new adsorbent materials for pre-combustion CO2 capture by pressure swing adsorption
CN110711456B (zh) 一种pvdc树脂衍生微孔碳材料在吸附分离氙气和氪气上的应用
RU2377176C1 (ru) Способ сорбции и хранения гелия или водорода
CN202116308U (zh) 一种小型生产氮气的装置
Tishin et al. The determination of zeolite sorption properties
CN211718200U (zh) 一种用于测定吸附剂效能的试验装置
CN115950700B (zh) 一种面向科学载荷效能测试用的大批量月壤水冰样本制备方法
CN109603761B (zh) 一种ZnO@CTAB复合材料的制备方法及其应用

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination