METHANOL PURIFICATION METHOD AND APPARATUS
This Laos Patent “METHANOL PURIFICATION METHOD AND APPARATUS” is a public DIP intellectual-property record, filed by A.H LUNDBERG SYSTEMS LIMITED on 2009-02-12; current status: Abandoned. Identifiers include application No. P/157; DIP id LAP157; protection kind Patent - PCT National Phase. Key dates: publication 2025-09-19. Classification: B01D 3/00、B01D 5/00、B01D 53/72、D21C 11/06. Inventor(s)/designer(s): DER, Bruce, JENSEN, Allan Stewart. Abstract hint: The invention relates to a method and apparatus to cover and purify methanol from gases produced in the digester during the kraft pulping p…. Unique application identifiers, holders and classification text are surfaced here to reduce near-duplicate IP landing pages; always verify against the competent office.
P/157
Mark
Key facts
- Type
- Patent
- App. no.
P/157- Status
- Abandoned
- Applicant
- A.H LUNDBERG SYSTEMS LIMITED
- Agent
- Lao Trademark Agency
- Filing date
- 2009-02-12
- Publication
- 2025-09-19
- Protection kind
- Patent - PCT National Phase
- Priority
- CA · PCT/2009/000172 · 2009-02-12
- Applicant address
- A.H LUNDBERG SYSTEMS LIMITED · 300-5055 Joyce Street, Vancouver, British Columbia, V5R 4G7 · CA
- Agent address
- Lao Trademark Agency · 148-149 Ban Sisavath Kang, Unit 16 Chanthabury District, P.O. Box: 925, Vientiane · LA
- Nice / IPC classes
- B01D 3/00 · B01D 5/00 · B01D 53/72 · D21C 11/06
- Goods / services
- —
Process
Steps follow the current public status-
Filed
-
Formal examination Refused / terminated
-
Substantive examination
-
Published
-
Granted
Related records
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Abstract
ສິ່ງຄົ້ນຄິດພົວພັນເຖິງວິທີ ແລະ ເຄື່ອງ ເພື່ອເກັບກູ້ຄືນ ແລະ ເຮັດໃຫ້ເມທາໂນລ ຈາກກ໊າສທີ່ໄດ້ ຜະລິດຢູ່ໃນເຄື່ອງຊ່ວຍຍ້ອຍສານໃນລະຫວ່າງຂະບວນການເຮັດໃຫ້ເຈ້ຍຄແຣຟທ໌ເປັນເນື້ອເຍື້ອ ນີ້ບໍລິສຸດ. ຕາມທໍາມະດາແລ້ວກ໊າສແມ່ນໄດ້ເກັບກູ້ເອົາຄືນເປັນກ໊າສທີ່ສົກກະປົກ (ເອີ້ນວ່າ ກ໊າສທີ່ອອກຈາກເຄື່ອງກວາດ ຫຼື SOG) ທີ່ປະກອບດ້ວຍເມທາໂນລ, ນ້ຳ ແລະ ສິ່ງເຈືອປົນອື່ນຕ່າງໆ. ຈາກນັ້ນ ກ໊າສກໍໄດ້ຮັບການບຳບັດດ້ວຍການເຫຍັ້ນຄ່ອຍໆຢ່າງຕໍ່ເນື່ອງ ແລະ ບັນດາບາດກ້າວ ການກັ່ນເພື່ອກຳຈັດສິ່ງທີ່ບໍ່ບໍລິສຸດ, ດ້ວຍເຫດນັ້ນຈຶ່ງຜະລິດເມທາໂນລທີ່ຖືກເຮັດໃຫ້ບໍລິສຸດໄດ້ສູງ.
The invention relates to a method and apparatus to cover and purify methanol from gases produced in the digester during the kraft pulping process. The gas is typicallly recovered as a foul gas (called stripper off gas or SOG) comprising methanol, water and various other contaminants. The gas is then treated with successive decanting and distillation steps to remove inpurities, thereby producing highly purified methanol.
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