公开(公告)号：US20250059113A1

公开(公告)日：2025-02-20

申请号：US18449380

申请日：2023-08-14

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Hassan S. ALASIRI ,  Ziyauddin S. QURESHI ,  Faizur RAHMAN ,  Uwais BADURUTHAMAL ,  Mohammad Ahmed AL-YAMI

IPC: C07C7/13 ,  B01J20/18 ,  B01J20/28 ,  B01J20/30 ,  C07C11/08

Abstract: A process for separating 1-butene from a C4 raffinate gas composition includes introducing the C4 raffinate gas composition to a reactor containing an adsorbent material and passing the C4 raffinate gas composition through the adsorbent material; adsorbing the 1-butene from the C4 raffinate gas composition onto the adsorbent material to separate the 1-butene from the C4 raffinate gas composition and form a residue gas composition; and desorbing the 1-butene by heating the adsorbent material after the adsorbing to form the 1-butene and regenerate the adsorbent material. The adsorbent material is at least one of a zeolite adsorbent and an alkali-modified zeolite adsorbent having at least 99% by weight selective towards 1-butene for adsorption in comparison to iso-butene and iso-butane.

公开(公告)号：US20190256383A1

公开(公告)日：2019-08-22

申请号：US16403014

申请日：2019-05-03

Applicant: KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS

Inventor： Faizur RAHMAN ,  Tahar LAOUI

IPC: C02F1/44

Abstract: A desalination cell which works with flat membranes for water purification purposes. A feed fluid is stirred on a feed side of the membrane to minimize cake formation. A purified liquid is formed on the permeate side of the membrane, and a reject fluid formed on the feed side of the membrane. When thick ceramic membranes are used, the desalination cell can be adapted to have a sealing gasket around the circumference of the membrane to prevent the feed fluid from by-passing the membrane and contaminating the purified fluid.