Device for recovering volatile organic compound
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/02
B01D-053/72
B01D-053/04
B01D-053/70
B01D-053/00
출원번호
US-0646720
(2013-11-21)
등록번호
US-9539539
(2017-01-10)
우선권정보
JP-2012-270760 (2012-11-22)
국제출원번호
PCT/JP2013/081402
(2013-11-21)
국제공개번호
WO2014/080984
(2014-05-30)
발명자
/ 주소
Uji, Shigekazu
출원인 / 주소
Uji, Shigekazu
대리인 / 주소
Squire Patton Boggs (US) LLP
인용정보
피인용 횟수 :
0인용 특허 :
7
초록▼
(Problem to be Solved) To provide a volatile organic compound recovery device which renders energy saving possible and renders the equipment simple. (Means for Solution) An untreated gas which contains a volatile organic compound is supplied to an adsorption tower (1), whereby the volatile organic c
(Problem to be Solved) To provide a volatile organic compound recovery device which renders energy saving possible and renders the equipment simple. (Means for Solution) An untreated gas which contains a volatile organic compound is supplied to an adsorption tower (1), whereby the volatile organic compound is adsorbed onto the adsorbent. After completion of the adsorption, a volatile organic compound which has higher adsorbability than that of the volatile organic compound adsorbed onto the adsorbent is supplied to the adsorption tower (1) through a desorption gas supply valve (4). The volatile organic compound which has low-adsorbability and has been adsorbed onto the adsorbent is then desorbed therefrom due to competitive adsorption with the high-adsorbability volatile organic compound fed later, and the high-adsorbability volatile organic compound itself is adsorbed onto the adsorbent instead. As a result, the volatile organic compound which has been adsorbed is discharged from the adsorption tower (1) and recovered.
대표청구항▼
1. A device for recovering a volatile organic compound contained in an untreated gas, the device comprising: an adsorption tower containing an adsorbent for adsorbing the volatile organic compound contained in the untreated gas;a desorption gas supply means configured to supply a high-adsorbability
1. A device for recovering a volatile organic compound contained in an untreated gas, the device comprising: an adsorption tower containing an adsorbent for adsorbing the volatile organic compound contained in the untreated gas;a desorption gas supply means configured to supply a high-adsorbability volatile organic compound, the high-adsorbability volatile organic compound being a volatile organic compound which has higher adsorbability than that of the volatile organic compound adsorbed onto the adsorbent or the high-adsorbability volatile organic compound being a volatile organic compound which has the highest adsorbability among a plurality of types of volatile organic compounds adsorbed onto the adsorbent of the adsorption tower; anda recovery means configured to recover the volatile organic compound desorbed from the adsorbent due to competitive adsorption with the high-adsorbability volatile organic compound. 2. The volatile organic compound recovery device according to claim 1, wherein the desorption gas supply means further comprises a desorption gas mixing means configured to mix the high-adsorbability volatile organic compound with air, an inert gas, or a mixture thereof. 3. The volatile organic compound recovery device according to claim 1, further comprising: an adsorbent regeneration gas supply means configured to supply a gas for desorbing the high-adsorbability volatile organic compound from the adsorbent of the adsorption tower. 4. The volatile organic compound recovery device according to claim 3, further comprising: a recovery means configured to recover the high-adsorbability volatile organic compound desorbed from the adsorbent. 5. The volatile organic compound recovery device according to claim 1, comprising: two or more recovery means configured to recover the volatile organic compound desorbed from the adsorbent due to competitive adsorption with the high-adsorbability volatile organic compound. 6. A method for recovering a volatile organic compound contained in an untreated gas, the method comprising the steps of: (i) adsorbing the volatile organic compound contained in the untreated gas onto an adsorbent;(ii) supplying a high-adsorbability volatile organic compound, the high-adsorbability volatile organic compound being a volatile organic compound which has higher adsorbability than that of the volatile organic compound adsorbed onto the adsorbent or the high-adsorbability volatile organic compound being a volatile organic compound which has the highest adsorbability among a plurality of types of volatile organic compounds adsorbed onto the adsorbent of the adsorption tower, and then desorbing the volatile organic compound adsorbed onto the adsorbent in step (i) due to competitive adsorption; and(iii) recovering the desorbed volatile organic compound. 7. The method according to claim 6, further comprising the step of: mixing the high-adsorbability volatile organic compound with air, an inert gas, or a mixture thereof, in step (ii). 8. The method according to claim 6, further comprising the step of: (iv) supplying a gas for desorbing the high-adsorbability volatile organic compound to the adsorbent to regenerate the adsorbent. 9. The method according to claim 8, further comprising the step of: (v) recovering the high-adsorbability volatile organic compound desorbed from the adsorbent in step (iv). 10. The method according to claim 6, wherein the untreated gas comprises two or more volatile organic compounds, and the method comprising the step of: recovering the desorbed volatile organic compounds in step (iii) separately for each type of compound using a difference in adsorbability onto the adsorbent. 11. The volatile organic compound recovery device according to claim 2, further comprising: an adsorbent regeneration gas supply means configured to supply a gas for desorbing the high-adsorbability volatile organic compound from the adsorbent of the adsorption tower. 12. The volatile organic compound recovery device according to claim 2, comprising: two or more recovery means configured to recover the volatile organic compound desorbed from the adsorbent due to competitive adsorption with the high-adsorbability volatile organic compound. 13. The volatile organic compound recovery device according to claim 3, comprising: two or more recovery means configured to recover the volatile organic compound desorbed from the adsorbent due to competitive adsorption with the high-adsorbability volatile organic compound. 14. The volatile organic compound recovery device according to claim 4, comprising: two or more recovery means configured to recover the volatile organic compound desorbed from the adsorbent due to competitive adsorption with the high-adsorbability volatile organic compound. 15. The volatile organic compound recovery device according to claim 11, comprising: two or more recovery means configured to recover the volatile organic compound desorbed from the adsorbent due to competitive adsorption with the high-adsorbability volatile organic compound. 16. The method according to claim 7, further comprising the step of: (iv) supplying a gas for desorbing the high-adsorbability volatile organic compound to the adsorbent to regenerate the adsorbent. 17. The method according to claim 7, wherein the untreated gas comprises two or more volatile organic compounds, and the method comprising the step of: recovering the desorbed volatile organic compounds in step (iii) separately for each type of compound using a difference in adsorbability onto the adsorbent. 18. The method according to claim 8, wherein the untreated gas comprises two or more volatile organic compounds, and the method comprising the step of: recovering the desorbed volatile organic compounds in step (iii) separately for each type of compound using a difference in adsorbability onto the adsorbent. 19. The method according to claim 9, wherein the untreated gas comprises two or more volatile organic compounds, and the method comprising the step of: recovering the desorbed volatile organic compounds in step (iii) separately for each type of compound using a difference in adsorbability onto the adsorbent. 20. The method according to claim 16, wherein the untreated gas comprises two or more volatile organic compounds, and the method comprising the step of: recovering the desorbed volatile organic compounds in step (iii) separately for each type of compound using a difference in adsorbability onto the adsorbent.
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