[특허]Process for the purification of bulk gases using chabazite adsorbents

Process for the purification of bulk gases using chabazite adsorbents 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B01D-053/04
출원번호	US-0334668 (1989-04-06)
발명자 / 주소	Coe Charles G. (Macungie PA) Gaffney Thomas R. (Allentown PA)
출원인 / 주소	Air Products and Chemicals, Inc. (Allentown PA 02)
인용정보	피인용 횟수 : 12 인용 특허 : 6

초록 ▼

A process is provided for the selective adsorption of one or more minor constituents from a bulk gas stream using a chabazite in which the bulk gas is size excluded from the pore structure of the chabazite or the minor constituent to be separated has a heat of adsorption greater than that of the bulk gas and the process is carried out under conditions such that the partial pressure of the minor constituent is in the linear low pressure region of the isotherm for the minor constituent and the adsorbent is a dehydrated divalent cation-containing chabazite having a Si/Al ratio of 1.8 to 2.7, a cation sitting, fs, of 0.7 to 1, and a cation distribution, fd, of 0.62 to 1.

대표청구항 ▼

In a process for the selective adsorption of one or more minor constituents from a bulk gas stream with a chabazite in which the bulk gas is size excluded from the pore structure of the chabazite or the minor constituted to be separated has a heat of adsorption greater than the bulk gas, the improvement which comprises separating the minor constituents utilizing a dehydrated calcium-exchanged chabazite having a Si/Al ratio of 1.9 to 2.3, a cation siting value fs, of about 0.9 to 1, a cation distribution value, fd, of about 0.74 to 1 and an adsorption capacity, Cv, of at least about 40 cc N2/g at 30 °C. and 1 atm under conditions such that the partial pressure of the minor constituent is in the linear low pressure region of the isotherm for the minor constituent.

이 특허에 인용된 특허 (6)

Sherman John D. (Chappaqua NY) Nagji Moez M. (Yonkers NY) Ross Ronald J. (Upper Nyack NY) Ausikaitis Joseph P. (Wilton CT) Garg Desh R. (Hopewell Junction NY), Drying process using chabazite-type adsorbents.
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Coe, Charles G.; Kuznicki, Steven M., Nitrogen adsorption process.
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Coe Charles G. (Macungie PA) Kuznicki Steven M. (Allentown PA), Polyvalent ion exchanged adsorbent for air separation.
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Coe Charles G. (Macungie PA) Roberts David A. (Allentown PA), Process for the purification of permanent gases using chabazite adsorbents.
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Maroulis Peter J. (Allentown PA) Coe Charles G. (Macungie PA) Kuznicki Steven M. (Easton PA) Roberts David A. (Allentown PA), Selective chromatographic process using an ion-exchanged, dehydrated chabazite adsorbent.
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Maroulis Peter J. (Allentown PA) Coe Charles G. (Macungie PA) Kuznicki Steven M. (Easton PA) Clark Patrick J. (Palmerton PA) Roberts David A. (Allentown PA), Selective zeolitic adsorbent and a method for activation thereof.
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이 특허를 인용한 특허 (12)

Bernard Lledos FR, Adsorbent having improved selectivity for the separation of gases.
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Golden,Timothy Christopher; Weist, Jr.,Edward Landis; Novosat,Paul Anthony, Adsorbents for rapid cycle pressure swing adsorption processes.
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Ojo Adeola F. (Chatham NJ) Fitch Frank R. (Bedminister NJ) Bulow Martin (Basking Ridge NJ), Adsorptive separation of nitrogen from other gases.
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Mullhaupt Joseph T. (Williamsville NY) Stephenson Paula C. (East Amherst NY), Enhanced gas separations and zeolite compositions therefor.
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Hsiung Thomas Hsiao-Ling ; Machado Jose Rui Souto ; Schwarz Alexander, Method and apparatus for removing trace quantities of impurities from liquified bulk gases.
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Coe, Charles Gardner; Bongo, Christopher Robert; Ochs, Geoffrey John; Bonanno, Marissa Ann; Lau, Garret Chi-Ho; Casteel, Jr., William Jack; Zhao, Qiao; Whitley, Roger Dean; Sorensen, Erin Marie, Modified chabazite adsorbent compositions, methods of making and using them.
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Lau, Garret Chi-Ho; Zhao, Qiao; Whitley, Roger Dean; Sorensen, Erin Marie; Coe, Charles Gardner; Casteel, Jr., William Jack; Ochs, Geoffrey John; Bongo, Christopher Robert; Bonanno, Marissa Ann, Modified chabazite adsorbent compositions, methods of making and using them.
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Chao Chien C. (Millwood NY), Nitrogen-selective zeolitic adsorbent for use in air separation process.
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Jasra, Raksh Vir; Chudasama, Chintansinh Dharmendrasinh; Sebastian, Jince, Process for the preparation of a molecular sieve adsorbent for the size/shape selective separation of air.
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Sebastian, Jince; Jasra, Raksh Vir, Process for the preparation of molecular sieve adsorbent for selective adsorption of nitrogen and argon.
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Jasra,Raksh Vir; Chudasama,Chintansinh Dharmendrasinh, Process for the preparation of molecular sieve adsorbent for selective adsorption of oxygen from air.
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Dominique Plee FR, Purification of hydrogen flowstreams by selectively adsorbing impurities therefrom.
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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Process for the purification of bulk gases using chabazite adsorbents 원문보기