50+ Reboilers and Falling Film Evaporators for Sulzer Chemtech China: Long-Term Domestic Supply Partnership in GB151 & ASME

Lmart has manufactured over 50 reboilers, falling film evaporators, condensers, and SMXL heat exchangers for Sulzer Chemtech’s Shanghai subsidiary (上海苏尔泽工程机械制造有限公司) across multiple Chinese domestic chemical and petrochemical projects. Equipment spans GB151 and ASME standards, with materials ranging from Q345R/S30408 carbon-stainless combinations to S31603 and S31703 (317L) for aggressive chemical service.

Customer	Sulzer Chemtech — Shanghai Engineering & Manufacturing (上海苏尔泽工程机械制造有限公司)
Industry	Chemical process engineering — separation, mixing, reaction technology
End-User Sites	Sichuan Shengxiao, Shaanxi Yulin, Suqian Shengtai, Jinyingoleo Taizhou, and others
Equipment Types	Column reboilers, falling film evaporators, condensers, SMXL static-mixer heat exchangers
Total Units	50+ units across 10+ project campaigns
Design Codes	GB151, ASME U
Key Materials	Q345R, S30408, S30403, S31603, S31703 (317L), SA516 Gr.70/316L
Weight Range	190–20,350 kg per unit

Partnership Background

Sulzer Chemtech is a global leader in separation, mixing, and reaction technology for the chemical and petrochemical industries. Its Shanghai subsidiary manages procurement and project execution for Chinese domestic installations — plants where equipment must comply with GB151 national standards and where local manufacturing offers both logistics and regulatory advantages over imports.

Lmart has served as a qualified fabricator for Sulzer Chemtech China across multiple project campaigns spanning several years. The scope covers reboilers for distillation columns, falling film evaporators for concentration and purification, condensers, and Sulzer’s proprietary SMXL static-mixer heat exchangers — compact units that combine static mixing elements with shell-and-tube heat transfer in a single vessel.

The relationship extends beyond the Shanghai subsidiary. Lmart also manufactured column reboilers directly for Sulzer-managed end-user projects including Jinyingoleo (金鹰化工) in Taizhou, Sichuan Shengxiao (四川圣效), Shaanxi Yulin (陕西榆林), and Suqian Shengtai New Materials (宿迁盛泰新材料).

Project Scope by Campaign

Jinyingoleo Taizhou — Column Reboilers (14 units)

Two separate campaigns for Jinyingoleo (P.N_JINYINGOLEO), a major oleochemical producer in Taizhou, Jiangsu. The first batch (items 51–57) comprised 7 column reboilers in Q345R/317L with diameters from DN1500 to DN2000 and unit weights up to 20,350 kg. The second batch (items 218–224) added 8 more reboilers (including one double-unit order) in the same material combination for plant expansion. 317L tube material was specified for its superior resistance to organic acid corrosion in fatty acid distillation service.

Sichuan Shengxiao — Reboilers (2 units)

Two column reboilers (items 36–37) at 7,600 kg and 9,500 kg, DN1300 and DN1400, GB151, Q345R/S30408. Installed at the Sichuan Shengxiao chemical plant for petrochemical distillation service.

Shaanxi Yulin — Reboilers (4 units)

Four reboilers (items 38–41) ranging from 6,800 to 10,750 kg, DN1200–DN1500, GB151, Q345R/S30408. Part of a coal-to-chemicals project in Shaanxi Province.

Suqian Shengtai New Materials — Reboilers (2 units)

C1 Reboiler (5,245 kg, DN950) and C2 Reboiler (3,500 kg, DN700), both GB151 in Q345R/S30408, for a new materials production facility in Suqian, Jiangsu.

Sulzer Shanghai Direct — Reboilers, Evaporators & SMXL Exchangers (30+ units)

The largest portion of supply consists of equipment ordered directly through Sulzer’s Shanghai entity for various end-user projects. This includes:

• T-101/102/103/104 reboilers (items 162–165): 4 column reboilers, 6,105–9,380 kg, DN1200–DN1500, Q345R/S30408
• T0409 falling film reboilers (items 226–227): 2 units at 4,800 kg and 3,000 kg
• Benzyl ester column falling film reboiler (item 170): 4,700 kg, DN1200
• CH/CCH purification column reboilers & condensers (items 230–233): 4 units in full S30408/S30403 stainless
• Crude oil condenser (item 323): 20,050 kg, DN2400 — the heaviest single unit in the Sulzer portfolio
• Falling film condenser (item 322): 3,800 kg, DN1200, S30403/S31603
• Column evaporators (items 301–302): including an 18,385 kg unit at DN1650 with 45 mm wall thickness in S31603
• DS-3 reboiler (item 104): ASME stamp, 2,250 kg, SA516 Gr.70/316L
• ASME U export exchangers (items 261–265): 5 units for an overseas Sulzer project — feed cooler, column preheater, condenser, falling film reboiler, and side draw cooler in SA516 Gr.485/304L
• SMXL static-mixer heat exchangers (items 234–241, 330–349): 28+ compact units in S30408/S31603, DN140–DN356, for Sulzer’s proprietary mixing-plus-heat-transfer applications

Representative Equipment Specifications

Campaign / Item	Equipment	Qty	Code	Wt (kg)	DN (mm)	THK (mm)	Material
Jinyingoleo #51	D-20602 Column Reboiler	1	GB151	19,195	2000	14	Q345R / 317L
Jinyingoleo #57	D-10602 Column Reboiler	1	GB151	20,350	2000	14	Q345R / 317L
Yulin #39	Reboiler	1	GB151	10,750	1500	12	Q345R / S30408
Shanghai #302	Column Evaporator	1	GB	18,385	1650	45	S31603 / S31603
Shanghai #323	Crude Oil Condenser	1	GB	20,050	2400	12	S31603 / S31603
Shanghai #163	T-102 Reboiler	1	GB	9,380	1500	12	Q345R / S30408
ASME #264	C-270 Falling Film Reboiler	1	ASME U	3,180	900	10	SA516 Gr.485 / 304L
SMXL #234	SMXL Heat Exchanger	1	GB	4,055	750	12	Q345R / S30408
Suqian #49	C1 Reboiler	1	GB151	5,245	950	10	Q345R / S30408

Engineering Challenges and Solutions

317L Tube-to-Tubesheet Joints for Oleochemical Service

The Jinyingoleo reboilers use 317L (S31703) tubes — a molybdenum-enhanced austenitic grade with higher resistance to organic acid attack than standard 316L. Welding 317L tubes to carbon steel tubesheets with a stainless overlay requires controlled heat input to prevent sensitization and cracking in the dissimilar-metal weld zone. Lmart developed qualified WPS procedures specific to the Q345R/317L combination, with ferrite content verification on each tubesheet weld.

Heavy-Wall Falling Film Evaporators

Falling film evaporators operate with a thin liquid film flowing down the inside of vertical tubes under gravity. Tube straightness and internal surface finish directly affect film distribution uniformity. The 18,385 kg column evaporator (item 302) at DN1650 with 45 mm wall thickness in S31603 required post-weld heat treatment and precise tube installation to maintain film performance across the full tube bundle.

SMXL Compact Exchangers — Sulzer Proprietary Design

Sulzer’s SMXL exchangers integrate static mixing elements inside standard shell-and-tube geometry, achieving high heat transfer coefficients in compact dimensions. The 28+ SMXL units manufactured by Lmart range from DN140 to DN750, with tight tolerances on internal element positioning. All units use S30408 shells with S31603 tubes to handle mildly corrosive process fluids.

Why Sulzer Chemtech Continues to Order from Lmart

Proven quality across 50+ units. The multi-year, multi-campaign track record provides Sulzer with confidence in Lmart’s fabrication consistency. Each new campaign builds on established WPS qualifications, inspection protocols, and dimensional standards from previous orders.

Dual-code capability. Sulzer’s domestic projects require GB151 compliance, while export projects need ASME U stamps. Lmart holds both certifications, allowing Sulzer to consolidate procurement with a single fabricator regardless of the project’s regulatory jurisdiction.

Material versatility. From standard Q345R/S30408 combinations to full S31603 construction and the specialized Q345R/317L pairing for oleochemical service, Lmart’s material procurement and welding capabilities cover the full range of Sulzer’s project requirements.

Geographic efficiency. Lmart’s Zhangjiagang facility is within the Yangtze River Delta industrial corridor, close to Sulzer’s Shanghai headquarters and to many of the end-user sites in Jiangsu, Zhejiang, and the broader eastern China petrochemical belt.

Customer Voice

Sulzer Chemtech’s continued multi-year ordering pattern — spanning at least 10 distinct project campaigns and over 50 individual equipment units — constitutes the strongest form of supplier endorsement in process equipment procurement. Repeat orders from a global technology licensor reflect sustained satisfaction with quality, delivery, and commercial terms.

“Sulzer’s procurement team has placed repeat orders across multiple project cycles, each time expanding the scope of equipment types and material grades.”

— Lmart project records (paraphrased from order history)

Note: Lmart respects client confidentiality. Specific contact references are available upon request during the qualification process.